628 lines
34 KiB
Plaintext
628 lines
34 KiB
Plaintext
LIST
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FILE ON
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MARGIN IS 76
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STATUS: ALL ALLOWED
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NUMBER OF LINES: 623
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1 If you are in need of help, you need but ask....
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2 ********************** REMOVED: 23 JUL 83 **************************
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3 Welcome to BWMS (BackWater Message System) Mike Day System operator
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4 ************************************************************
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5 GENERAL DISCLAIMER: BWMS IS NOT RESPONSIBLE FOR ANY INFORMATION PLACED ON
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6 THIS SYSTEM.
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7 BWMS was created as an electronic bill board. BWMS is a privatly owned
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8 and operated system which is currently open for use by the general public.
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9 No restrictions are placed on the use of the system.
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10 It is intended that the system be normally used for messages and
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11 advertisments by the users. As the system is privatly owned, I retain the
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12 right to remove any and all messages which I may find offensive
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13 to me. Additionally because of the limited size of the system, it will be
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14 periodically purged of older messages. (only 629 lines of data can be saved)
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15 The saved information will be cycled to drive 'B' while the information on
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16 drive 'B' will be archived, and a fresh disk will be installed in drive 'A'.
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17 To leave a message, type 'ENTER' and use ctrl/C or break to get out
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18 of the enter mode. The message is automaticly stored.
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19 If after entering the message you find you made a mistake,
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20 use the replace command to replace the line.
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21 To exit from the system, type 'OFF' then hang up.
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22 Type 'HELP' to see other commands that are available on the system.
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23 ========================================
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24
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25 <><><><><><><><><><><><><><><><><><><><>
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26 made it to the top again........
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27 Aaron at 20:22
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28 <><><><><><><><><><><><><><><><><><><><>
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29 An interesting point was made on the last disk. Why are we continually forced t
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30 o tolerate the 40-column drivel of those Apple-types and Atari-types? It's
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31 bad enough that there is a limited number of lines that can be stored; The
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32 use of 40 columns wastes half of the storage available! And don't tell me that
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33 you can't send 80 columns: any modem program should be able to wrap around
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34 properly. If yours can't, either buy another computer or get another modem
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35 program. Or else learn to say in 40 columns what the rest of us can say in
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36 80.
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37
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38 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
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39 WELL, FOR YOUR INFORMATION, SOME OF US
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40 WHO ONLY HAVE A 40 COLUMN DISPLAY,
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41 EITHER BECAUSE WE ARE TO CHEAP TO BUY
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42 OR CAN'T AFFORD AN 80 COLUMN DISPLAY
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43 WOULD LIKE OUR MESSAGES TO BE EASILY
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44 READ BY OTHER 40 COLUMN GO'ERS. ALSO
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45 IT MAKES IT MUCH EASIER TO EDIT A
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46 FAULTY MESSAGE IF YOU ONLY HAVE A 40
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47 COLUMN DISPLAY.
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48 I UNDERSTAND WHAT YOU MEAN, TALKING
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49 IN 80 COLUMN TERMS, BUT NOT EVERYONE
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50 HAS THAT LUXURY. PERSONALLY, I THINK
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51 80 COLUMNS ARE GREAT, BUT SINCE I ONLY
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52 HAVE 40 TO WORK WITH, I WOULD LIKE TO
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53 MAKE THE MOST OF IT. (EASIEST TO READ)
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54 ===ERIK===
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55 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
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56 <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><
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57 this mess is only 4 lines long,see how you like 128 on 80,and you will get an idea of what 80 is like on 40.....
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58 Aaron at 22:15
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59 <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><
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60 TO ABOVE:
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61 YOU FORGOT THE VICS AND SINCLAIRS!
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62 IF YOUR GONNA GRIP AT LEAST BE
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63 FAIR AND CATCH THEM ALL!
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64 ...................................
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65 ===============================================================================================================================
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66 That looks real nice on my VT-100,Aaron,I say that any messages obviously using less than 128 col should be purged.Any static?
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67 a real terminal user
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68 ===============================================================================================================================
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69 --------------------------------------
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70 Graphic arts, as exemplified in poster
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71 and magazine illustration, were import-
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72 ant elements of German propaganda machi
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73 nes in the mid-twentieth. Public
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74 opinion, molded by these machines, was
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75 a principle force in the eventual
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76 murder of several million (an early
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77 representation of Megadeaths) members
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78 of an ethnic minority.
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79 ++++ Dragonblinder ++++
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80 Those aren't white canes, they're
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81 riding whips.....and it's an ugly crop
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82 of dragons this year.
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83 ++++++++++++++++++++++++++++++++++++++
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84
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85
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86 <><><><><><><><><><><><><><><><><><><><>
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87 im not sure i get your point,
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88 are you saying: We cant limit
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89 scientic liberties because artisitic
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90 ones are just as devastating,and
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91 limiting such of the arts would
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92
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93 be censuring our freedom,therfore it
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94 must'n be done,therfore editing the
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95 scientific community shouldn't be
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96 allowed....
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97 OR
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98 if you are going to limit the
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99 use of science on the grounds of
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100 "affecting the environment" you
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101 should do the same with the literature
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102 and other esthetic media because it can be just as devastating...
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103
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104 just trying to clarify
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105 Aaron at 01:30
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106 <><><><><><><><><><><><><><><><><><><><>
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107 riding whips?
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108 Aaron at 01:38
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109 <><><><><><><><><><><><><><><><><><><><>
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110 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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111
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112 What I'm suggesting is that if a criterian for judgement of some cause-effec
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113 chain is not mappable onto other equivalent chains then we should consider te
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114 applicability of the criterion for judgement.
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115
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116 >> Dragonblinder <<
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117
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118 A dragon admiring a sunset may still toast your tush...
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119 Anon
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120 +
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121 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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122
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123 <><><><><><><><><><><><><><><><><><><><>
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124 I would suggest that the inability
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125 to apply equivilent criterion for
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126 judgement is simply a function of
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127 the dissimilarity between the two
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128 cause/e(a?)ffect chains.Mappability
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129 dosn't map well from topology
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130 to socio-determinism...
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131 Aaron at 03:37
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132 <><><><><><><><><><><><><><><><><><><><>
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133
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134 few blind dragons are known to
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135 admire sunsets,yet do they
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136 still engage in recreational
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137 tush-toasting?
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138
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139 .....nonA
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140 <><><><><><><><><><><><><><><><><><><><>
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141 TO: All Re: 40/64/80/128 column displays
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142 I normally access this system with a TRS-80 Mod 3 (64 col), I have accessed
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143 it with my Model 100 (40 col). When I used the M100 I left 80 column msgs!
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144 It isn't all that difficult to edit a msg where each line of the
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145 msg occupies 2 lines of display. Just pretend you are editing a long program line! Actually I consider us to be lucky! We
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146 haven't had any HX-20 users leaving 20 column msgs here.
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147 Mind you, I'm not saying that you HAVE to use 80 (or 128) columns, but you might give it a try folks. These disks DO fill up
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148 rather quickly you know!
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149 Something more annoying than narrow msgs is someone who has a 40 col screen & doesn't realize that just becuase he is on the
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150 next line doesn't mean he is on the next line HERE. I hate msgs that aren't consistent in width. If you ARE going to continue t
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151 use your narrow display, PLEASE set the margin before going into <enter> mode. (yes, I know my margins are all over the place i
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152 this msg. Guess why?)
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153 ____________________________Leonard____________________________________________________________________________________________
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154 I'M USING A VIC WITH TERM-40 (0 COLUMN)AND HAVE NO TROUBLE ENTERING FULL LINES.I JUST TYPE TILL MIKES EQUIPMENT WON'T ACCEPT AN
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155 MORE INPUT THEN HIT RETURN. FILLS THE SCREEN REAL NICE. IT ALSO WORKS WITHE THE STANDARD VIC-TERM (22 COL) WHICH HAS A FORMAT
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156 FUNCTION SO THAT ONE DOESN'T GIVE BROKEN WORDS AT THE SCREEN EDGE. CAN'T UNDERSTAND ALL THIS FLACK ABOUT LINE SIZE. JUST TAKES
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157 A LITTLE EDUCATION, OR IF ALL ELSE FAILS READ YOUR MANUALS AND THE SYSTEM INSTRUCTIONS!!
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158 -------------------------------------------------------------------------------------------------------------------------------
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159 that stupid????
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160 Are you guys ready for a new Bulletin Board system? If someone can lend me an Auto-Answer Modem, I'll have the system up in no
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161 time.
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162
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163 Aaron, When you sed "YELLOW KITTY", I wasn't sure. Ambush was the one I was talking about to you.
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164
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165 ||||||
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166 || TRON||
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167 |||||
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169
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170 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
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171 TO LET EVERYONE KNOW, I REALLY DON'T
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172 MIND USING OR READING 80 COLUMNS ON A
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173 40 COLUMN DISPLAY, BUT WHAT GETS ME IS
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174 WHEN SOMEONE COMES OUT AND TELLS ME NOT
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175 TO TYPE IN 40 COLUMNS JUST BECAUSE THEY
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176 DON'T LIKE THE WAY IT LOOKS ON THEIR
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177 MONITOR.
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178 YOUR NOT THE ONLY ONES IN THIS WORLD
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179 YOU KNOW. (I'LL BET THEIR ARE MORE 40
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180 COLUMN USERS THAN THEIR ARE 80 OR 128!)
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181 ===ERIK===
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182 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
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183 <><><><><><><><><><><><><><><><><><><><>
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184 ditto...
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185 Aaron at 14:31
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186 <><><><><><><><><><><><><><><><><><><><>
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187 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
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188 Hope you don't mind me asking..but how old are you guys?
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189 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
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190 -------------------------------------------------------------------------------------------------------------------------------
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191 Actually the problem is not the individual terminals, it is Backwater's disk space - each line (even if it only
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192 contains a carriage return) occupies a whole sector on his disk drive -- kind of a waste: 1 sector for a C/R!!
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193 To the guy above who doesn't know anything about Atari's: the Atari may have a forty col. display but it wraps around a
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194 automatically - I don't care if the lines are 40 col or 4000 col - it shows up the same on my screen!!
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195 ------------Atari User-------------------------------------------------------------------------------------------------
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196 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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197 Mappability is not a concept limited to topology. It's meaning derives from abstract algebra; but its useabilty
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198 in other forms of argumentation need not be denied simply because of the class in which it was born.
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199 Let us not confuse our maps with our territories.
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200
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201 Dragonblinder
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202
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203 I'll never see forty again...
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204
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205 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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206 **********
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207 GRAFITTI SHOULD BE RESERVED FOR BATHROOM WALLS.
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208 ********************************************************************************
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209
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210 What a funny bird a frog are.
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211 When him walks, him hops.
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212 When him don't hop,
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213 Him sits on his tail,
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214 What him don't got at all, almost, hardly.
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215
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216
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217 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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218 **********
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219 GRAFITTI SHOULD BE RESERVED FOR BATHROOM WALLS.
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220 ********************************************************************************
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221
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222 What a funny bird a frog are.
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223 When him walks, him hops.
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224 When him don't hop,
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225 Him sits on his tail,
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226 What him don't got at all, almost, hardly.
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227
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228 ///////////////////////??????????????????????///////////////
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229 It seems the problem with 40 or 80 or 128 columns is not the equipment, but
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230 the users.
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231 Please note that BWMS provides the ability to set any column width desired,
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232 up to 128, or down to maybe 2. As the last few messages proves, it is
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233 actually a bonus that these discs fill up and are replaced, the blather
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234 about width goes away faster. In case you haven't discovered it yet, or
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235 perhaps can't comprehend, the use of BWMS is not for the convenience of
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236 the machine, but for the users, people who may have 22, 40,64, or even 128
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237 char wide screens. If you don't like it, go stuff it and cry on some one
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238 elses shoulder. (Or go play on the freeway with the other children your
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239 own mental age<< sorry, I can't count that low>>).
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240 /////////////////////////////BAD\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
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241 sorry,
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242 it only
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243 goes
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244 down to
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245 seven!!
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246 .......
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247 .......
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248 .......
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249 ..7....
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250 ****************************
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251 Comment on this: It is clear that storing messages in a sector-per-line format
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252 is very inefficient, especially for the narrow-width formats. I believe that
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253 this is the result of sloppy design, where a designer takes the path of least
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254 resistance and makes something that just barely works. Sure, it does what it is
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255 designed to do, but does it in a far-from-optimum manner.
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256 This is a sign of a very new technology, but there are many other
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257 examples of such terrible design: The current state of affairs with regards
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258 to the minifloppy formats (dozens of standards) , RS232, software in general,
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259 and Basic in particular, etc. Eventually the man on the street will develop
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260 a sense for poor design and it will become impossible to 'sell' him on a
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261 flawed idea. Until then, watch out!
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262 I agree: it seems that the 40-column users' lack of familiarity with
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263 their computers is responsible for the problem. They COULD edit 80 columns
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264 if they tried, and perhaps some of them do. It's the rest that cause the
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265 trouble.
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266 ******************************
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267
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268
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270
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271
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272 I HAVE A VIC AND I AM ALSO RUNNING TERMINAL-40...(A MODIFIED VERSION THAT
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273 ALLOWS SAVING AND RETRIEVING TEXT FILES, AND IS ALSO WHITE CHARS ON BLACK WITH
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274 STANDARD SCROLLING)
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275
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276 I FIND LITTLE PROBLEM READING MESSAGES ON BWMS IN FORTY COLUMNS. HOWEVER,
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277 22 COLUMNS IN THE BASIC TERMINAL PROGRAM I WROTE IS A BIT DIFFICULT.
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278
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279
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280 TO THE PERSON ABOVE (TRON): HAVING THE COMPUTER AUTOMATICALLY ANSWER
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281 THE PHONE IS VERY EASY...
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282 MA BELL PUTS ABOUT 24VAC ON THE LINE WHEN THE PHONE RINGS. ALL VOLTAGES ON
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283 THE LINE ARE NORMALLY DC (HUNG UP THE VOLTAGE IS 50 VDC, AND OFF THE HOOK
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284 THE VOLTAGE IS ABOUT 6 VDC). SO, ALL YOU HAVE TO DO IS PUT A DIODE ON THE LINE
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285 (CHANGING THE 24VAC TO +12VDC) AND HOOK THE OTHER SIDE OF THE DIODE AND THE
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286 OTHER LINE TO A +12VDC RELAY...
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287 IF YOU HAVE SOME KIND OF PORT AVAILABLE, THE PORT COULD READ THE POSITION
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288 OF THE RELAY SWITCH (WHICH IN A PROGRAM COULD CONTROL A RELAY TO ANSWER THE
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289 PHONE.)
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290
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291 IT'S EASIER THAN IT SOUNDS, AND IS EVEN EASIER IF YOU ARE GOING TO USE A
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292 VIC OR CBM-64 (BECAUSE OF THE USER PORT, wHICH IS EXTREMELY EASY TO USE)
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293
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294 IT ALL CAN BE DONE WITH JUST A HANDFULL OF PARTS...GOOD LUCK!
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295
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296 AND LAST, TO THE GUY WHO WANTS TO KNOW EVERYONES AGE, I AM 15...AND THE
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297 PRESIDENT OF MY OWN COMPANY, PROTRON DATA SYSTEMS........
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298
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299
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300 THE SYSM, DAVID GREENMAN.
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301
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302 P.S. MIKE! I JUST TURNED MY ACOUSTICLY COUPLED MODEM INTO A DIRECT-CONNECT.
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303 YOU WERE RIGHT! IT DOES WORK ALMOST ERROR FREE...ONLY TWO CHARS WERE MESSED
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304 UP DURING THIS WHOLE SESSION...
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305
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306 ********************************************************************************
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307 BY THE WAY TRON, LEAVE A MESSAGE ON PMS FOR ME (DAVID GREENMAN) SO I CAN
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308 GET USE TO THE SYSTEM (I.E. RETRIEVING MESSAGES, CHECKING FOR ONE WAITING
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309 ETC...)
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310
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311 I MIGHT LEAVE MY PHONE NUMBER ON IT AT A LATTER TIME FOR YOU...
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312
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313 THE SYSM.
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314
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315 *+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+
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316 ----------------------------------------
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317 JUST TESTING; THE GUY ABOVE WAS RIGHT IT
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318 HELPS TO READ THE INSTRUCTIONS
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319 you might consider checking with ma
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320 before you go hooking up any devices
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321 such as Mr.Greenman suggested,ma dosn't
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322 take kindly to devices with ringer
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323 equivalences of 16 on their lines.....
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324 note that i am not on my plush
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325 homegrown c64 modem operating
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326 system v6.7,thus the lack of the
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327 classical "<><><>" and "Aaron at.."
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328 Aaron
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329 ...............................................
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330 DESIGN TO SPEC IS NOT A DESIGN FLAW. OVERDESIGN IS.
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331 IT COSTS MORE, TAKES LONGER, AND OFTEN DOESN'T WORK AS WELL.
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332 THE REASON THERE ARE SO MANY DIFFERENT 5" FLOPPY DESIGNS
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333 AROUND IS BECAUSE THERE IS NO REAL DIFFERENCE INPERFORMANCE,
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334 AND THEREFORE NO REASON FOR ANY ONE DESIGN. AS HERRE IS NO
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335 SINGLE STANDARD TO FOLLW, THERE ISN'T ANY REASON TO USE
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336 ONE OVER ANOTHER. ALSO, WHEN WAS EACH ONE DESIGNED?
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337 IF YOU CAN DO BETTER, DO IT, BUT DON'T CALL A WORKING
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338 SYSTEM BAD, UNLESS YOU NEED SOMETHING ELSE, AND THEN IT ISN'T
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339 POOR DESIGN, JUST INAPPROPRIATE. SURE IT COULD BE MORE
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340 "EFFICIENT", BUT COULD YOU AFFORD IT? COMPARE WHAT BETTER
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341 COSTS WITH WHAT BWMS REALLY COSTS, AND SEE IF "BETTER"
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342 IS BETTER.
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343 .............................BAD..........................
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344 ----------
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345 I HAVE ALREADY MESSED WITH THE PHONE LINE AND THE RINGER VOLTAG
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346 IT 70 VOLTS. MY MODEM IS A CHEAPO ONE THAT ONLY XMITS AND RECIE
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347 VES. I HAVE SEVERAL CIRCUTS THAT HAVE O DO WITH AUTO-ANSWER
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348 DEVICES. I'M JUST SCARED ABOUT MA BELL COMING DOWN ON ME WITH
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349 A JACKHAMMER.
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350
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351 ------
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352 == TRON ==
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353 ------
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354 ----------
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355 MIKE, WHO DELETED MY MESSAGE THAT WAS RIGHT HERE????? I DON'T APPRECIAT IT AT
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356 ALL. DID YOU OR DID SOME EGOTISTICAL SYSTEM CRASHING MORON DO IT?
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357
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358 THE SYSM...A VERY UNHAPPY AND DISAPPOINTED USER.
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359
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360 -*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
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361 ****************************************************************************
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362 SOMEBODY'S MESSING UP MY TRANSMISSION!
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363 HEY, YOU GUYS! ANYBODY HAVE AN APPLE 2+ AND A DISK DRIVE THAT I CAN BUY
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364 OR RENT PLEASE LET ME KNOW ABOUT IT!
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365 MY ADDRESS IS...............JIM KELLY
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366
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367 >PORLAND, ORE. 97214
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368 PHONE: (503) 231-xxxx
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369 THANKS!
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370
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371
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372
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373 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
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374 HEY, I HAVE NO TROUBLE USING 80 COLUMNS ON MY 40 COLUMN SCREEN. BUT TO THE
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375 PEOPLE ABOVE WHO SEEM TO BE TAKING THE MATTER SO SERIOUSLY, CALM DOWM, IF YOU
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376 WANT 80 COLUMNS... JUST ASK!!!!!!
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377
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378 BY THE WAY, IS MIKE STRADLEY STILL OUT THERE SOMEWHERE. IF YOU ARE MIKE,
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379 THIS IS ERIK, LEAVE ME A MESSAGE AS TO WHAT IS GOING ON. HAVEN'T SEEN YOU AT
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380 WORK FOR OVER A WEEK! I HEARD ABOUT THE ADDITION TO YOUR FAMILY. I'M ANXIOUS
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381 TO FIND OUT WHAT Y_OU NAMED HIM/HER.
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382 TALK TO YOU LATER AT(WHENEVER THAT MAY BE!).
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383
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384 BRUCE? ARE YOU THERE? THIS IS ERIK. THAVE ANY LUCK WITH THE PROGRAM SINCE
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385 THE LAST TIME I TALKED TO YOU? (BY THE WAY, I WILL RBRING A NEW COPY OF THE
|
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386 SOURCE LISTING TO YOU NEXT TIME I COME
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387 OUT. BYE.....
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388
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389 ===ERIK===
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390 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
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||
391 Tron, what kind of circuits have you got for answering the
|
||
392 phone? I added an autodialer to my modem, and wouldn't mind
|
||
393 an autoanswerer. I've called you a few times, but I don't even
|
||
394 get the answering machine. I'll try again, I guess...
|
||
395 Andy
|
||
396 .
|
||
397 |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
||
398 To give you an idea as to the cost of BWMS (Real cost, not my often
|
||
399 touted no cost to me standard) When the system was new, it had a
|
||
400 list of $999.95 This was in 1977. (The original designed unit was in 1976)
|
||
401 In very high volume it got to as low as $400.00 around 1979/1980.
|
||
402 It is very difficult to find a disk system around for that price
|
||
403 even today. The reason for this is that BWMS is a dedicated system
|
||
404 that is it can't run basic or anything else, it can only run BWMS.
|
||
405 For this you get cost savings as noted above. Part of this comes
|
||
406 from not running expensive operating systems since there is no need
|
||
407 to as we decided that it will only run one program always, we just
|
||
408 put it in prom and not worry about it. The next thing we consider
|
||
409 is that since we don't have all that much program space (8K prom
|
||
410 and 1K ram for EVERYTHING!) a lot of things have to be changed in
|
||
411 the way normal thought is nowadays as to what is normal for a disk.
|
||
412 thus the sector per line concept which makes programing in that
|
||
413 small an area possible. By the way, things do change with time,
|
||
414 even the computer that BWMS is running on has evolved at the
|
||
415 manufacturer, although BWMS is still the granddady, the lastest
|
||
416 system being sold runs CPM has a Z80 processor (BWMS uses a 8080)
|
||
417 has 256K of ram, 16K of prom, and sells for a list price of...
|
||
418 would you believe the original price of $999.95?.....
|
||
419 So you see, what changes with time is the performance per price,
|
||
420 not the cost. By the way, I built a computer a long time ago
|
||
421 (around 1967 or 1968 I think for about $1.00 it worked quit well
|
||
422 thank you. and was made from paper clips and things like that
|
||
423 the memory was a toilet paper roll with aluminum foil for contacting
|
||
424 A computer can be built any way you want, it is just a matter
|
||
425 of determining what you want. AND THAT IS THE THING THAT CHANGES!
|
||
426 *** CISTOP MIKEY WITH THE LESSON FOR THE DAY *** 19 JULY 83 ******
|
||
427 :::::::::::::::::::::
|
||
428 To connect to the phone line is relatively easy, even if you want to do
|
||
429 it 'right.' Here's my way: First, have no DC connection between the
|
||
430 phone line. To carry the signal, use a 600:600 ohm transformer. To
|
||
431 bring the line off-hook, use a reed-relay. To detect the ring, use
|
||
432 an opto-isolator that is driven by the full-wave rectification of the
|
||
433 capacitively coupled signal on the line. This way, no DC or AC problems,
|
||
434 and the ringer equivalence is essentially 0 (almost no load on line.)
|
||
435 :::::::::::::::::::::Jim, Son of Ma Bell:::::::::::::::::::::::::::::
|
||
436 HOOKING THE COMPUTER UP TO THE PHONE IN THE WAY I DESCRIBED EARLIER DOES
|
||
437 NOT PUT THAT MUCH OF A LOAD ON THE LINE. IT PUTS ABOUT THE EQUIVILENCE OF
|
||
438 ABOUT 1 1/2 PHONES. I HAVE A RELAY (HOOKED UP AS DESCRIBED EARLIER)
|
||
439 HOOKED UP TO THE LINE. AND, WHILE I WAS AT IT, DISCONNECTED THE BELL AND
|
||
440 INSTALLED A PIEZO BUZZER FOR THE RINGER...SOUNDS A LOT BETTER THAN THE CLANG
|
||
441 OF THE BELL!!! I ALSO CONVERTED MY ACOUSTIC MODEM TO DIRECT CONNECT BY USING
|
||
442 TWO $1.29 AUDIO OUTPUT TRANSFORMERS. I HAVE HAD EXCELENT SUCCESS WITH THIS
|
||
443 AND I SUGGEST EVERYONE DO IT. THE TRANSFORMERS HOOK INTO THE MIC AND SPEAKER
|
||
444 OF THE PHONE HANDSET...SIMILAR TO THE WAY COMMODORE DOES IT WITH THERE DIRECT-
|
||
445 CONNECT. ONCE AGAIN, IT ALL WORKS GREAT! I HAVE HAD ONLY ONE PROBLEM...WHEN
|
||
446 I CONNECTED MY MODEM TO THE TRANFORMER AND CONNECTED THE TRANSFORMER TO THE
|
||
447 PHONE, I DIDN'T USE SHIELDED CABLE. NEEDLESS TO SAY, YOU COULD HEAR KwJJ ON
|
||
448 THE TELEPHONE! I FIXED THIS PROBLEM
|
||
449 THOUGH, AND HAVE HAD NO PROBLEMS SINCE. I ALSO BUILT AN ELECTRONIC HOLD BUTTON
|
||
450 FOR THE TELEPHONE, AND INSTALLED IT TOO... THE CIRCUIT CAN BE FOUND IN A
|
||
451 BACK ISSUE OF RADIO-ELECTRONICS (CALLED "MUSIC ON HOLD"). AS THE ARTICAL NAME
|
||
452 IMPLIES, WHILE ON HOLD YOU CAN ALSO PLAY MUSIC INTO THE PHONE FOR THE PERSON
|
||
453 ON THE OTHER END.
|
||
454
|
||
455 AND THE LAST OF MY TELEPHONE PROJECTS WAS AN AUTODIALER. THIS CONSISTS OF A
|
||
456 RELAY, RESISTOR, AND TRANSISTOR...AND A NICE BIG PROGRAM! I USE THIS TO ANSWER
|
||
457 THE PHONE ALSO...
|
||
458
|
||
459 THE SYSM...A TELEPHONE FREAK.
|
||
460
|
||
461 *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-
|
||
462 <><><><><><><><><><><><><><><><><><><><>
|
||
463 right on jim,another excellent
|
||
464 technique is a neon lamp,1mohm resistor
|
||
465 and a photo-transistor,(you can probably
|
||
466 guess how they are hooked up),and
|
||
467 a com-controlled relay to answer
|
||
468 when comp sees the p-t signal.If you want
|
||
469 to get tricky,replace the photo-t with
|
||
470 a LASCR a put a com-controled nc relay
|
||
471 in the line between the power supply
|
||
472 and the relay/scr,and the unit will
|
||
473 answer auto,the computer will send
|
||
474 a disconnect signal to drop....
|
||
475 Aaron at 21:01
|
||
476 <><><><><><><><><><><><><><><><><><><><>
|
||
477 IF YOU GUYS LIKE TO SEE MY METHODE IN OPERATION...I PLAN TO HOOK IT UP TO
|
||
478 THE PHONE LINE...FOR YOU ALL TO TRY OUT, WHEN I AM READY I WILL POST MY PHONE
|
||
479 NUMBER ON A BBS.
|
||
480
|
||
481 IT DOES WORK...WITHOUT FOOLING AROUND WITH OPTOCOUPLING DEVICES.
|
||
482
|
||
483 THE SYSM, TRYING TO KEEP THINGS SIMPLE (AND CHEAP!).
|
||
484
|
||
485 *+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+
|
||
486 BEWARE the method proposed by the SYSM!! It might work, sometimes, but...
|
||
487 The ring current put out by Ma is 105 volts AC, 20 hertz, with a biasing
|
||
488 DC voltage that depends on, among other things what office you home into,
|
||
489 which "party" it thinks you are, and how far you are from the office. It
|
||
490 will get to you at a lower voltage, which depends on what you have hung on
|
||
491 the line, and how far away you are. A simple capacitor to isolate the DC,
|
||
492 with some simple detector for about 50 volts will usually work if you don't
|
||
493 try to draw too much current (stay below about 10 milliamps to be safe).
|
||
494 The phone contains about 1 or 2 microfarads in series with the bell, but
|
||
495 use something closer to .1 for your detector. Directly connecting to the
|
||
496 phone line, besides being illegal (you can't afford the certification), is
|
||
497 rather dangerous unless done right. If it goes astray you WILL pay the
|
||
498 cost to Ma of finding out that it was your problem (estimated at $50 plus).
|
||
499 There are also other things on the line than the 52 volts DC that run the
|
||
500 talk circuit and the 105 VAC that rings your bell, like plus or minus 120
|
||
501 volts DC used for line testing. Note that what you see on your line may
|
||
502 not be the same as what someone else has; it depends on what kind of office
|
||
503 you have, and who owns it, Ma Bell, or GTE, or... Going in through the
|
||
504 handset connector is a very good way to direct connect, as what goes to
|
||
505 the receiver is isolated from the dc, and is safe. (however, don't bet on
|
||
506 it, some phones can be different.)
|
||
507 Something to check for, relative to phones: measure the dc voltage
|
||
508 with no phone attatched to the line, with the phone off hook (dial tone),
|
||
509 and after you call someone in the same exchange, and when someone calls
|
||
510 you. You might notice that the talk battery is reversed when the person
|
||
511 you called answers, or when you answer an incoming call. Most simple
|
||
512 "hold" circuits depend on this reversal so they can tell when the caller
|
||
513 hangs up, rather than holding up the line forever; unfortunately the newer
|
||
514 systems used by Ma don't do this. I don't know about GTE, etc.
|
||
515 If you are on a rural line, or in St. Johns you may find a lot more than
|
||
516 52 volts, too. (It depends on what you have on the line as it may look at
|
||
517 your set to see how much it needs.)
|
||
518 And, make sure your circuit leaves NOTHING connected DC-wise to the line
|
||
519 when you are calling out.
|
||
520 Good luck, it may even work
|
||
521 //////////////////////////////BAD\\\\\\\\\\\\\\\\\\\\\\\\\\\
|
||
522 If you must, I don't recomend you do, as BAD says ma will climb all over you
|
||
523 if anything goes wrong! but if you must, the proper circuit to use for ring
|
||
524 detection is an optocoupler (a 4N26 will do nicely) a capacitor, and a resistor.
|
||
525 take the resistor put it in series with the capactior which is then put in
|
||
526 series with the optocouplers photo diode (pins 1 and 2) the resistor should
|
||
527 be about 10,000 ohms 1/2 watt this limits the current so the opto coupler
|
||
528 won't get blown out because of misc line voltages running around on the lines.
|
||
529 the capactitor should be 0.33mfd rated at 250VDC minimum. preferably a
|
||
530 polycarbonate type as these will selfheal if the voltage on the line
|
||
531 exceeds its rating. finally, a diode (1N914) should be installed across
|
||
532 the 4N26's photo diode pins to protect it against reverse voltages.
|
||
533 This diode should be installed so that it is backwards to the photo diode.
|
||
534 I.E. anode to cathode, cathode to anode. now tie the emitter of the
|
||
535 optocoulpers transistor to you i/o ground the collector goes to and
|
||
536 input port, and a 10,000 ohm pull up resistor should be tied from the
|
||
537 collector to plus 5 volts to finnish it off. you will see the ring
|
||
538 signal as a series of pulses that match the ringing you hear. This
|
||
539 circuit just described is an aproved circuit, and has a ringer
|
||
540 equivalence of 0.8B If you intend to send data thru the line, I
|
||
541 also strongly urge you to use a standard telephone line transformer
|
||
542 to do this with. There is a reason for this, the phone line is
|
||
543 expecting a 600 ohm load for proper operation, it is very important to
|
||
544 match this load with the transformer, or you will have a lot poorer
|
||
545 data reception. (lots of garbage) The reason for this is that data
|
||
546 is being sent both ways on the same set of wires, in order to
|
||
547 seperate this data at each end we need as close a match to the
|
||
548 600 ohms as we can get to properly balance the line for every little
|
||
549 bit that we are out of balance, that much of our transmitted data
|
||
550 will get thru and try to garbage our received data. to connect the
|
||
551 transformer to the line use a relay with normally open contacts,
|
||
552 that way if you loose power the relay will turn off and not hog the
|
||
553 line. the relay goes in series with the transformers primary which
|
||
554 is tied to the phone line. the wires you want to use are the red and
|
||
555 green ones. which are the center two wires of the modular cable. ignore
|
||
556 the yellow and black wires (don't hook anything to them) (these are the
|
||
557 outer two wires of the modular cord.).
|
||
558 another reason to use a standard telephoe transformer is that there is
|
||
559 a DC bias current on the telephone line that is there to make the
|
||
560 carbon mic in your handset work. This causes havock in a normal audio
|
||
561 transformer because they aren't expecting a lot of DC current to be flowing
|
||
562 thru them. the telephone transformers were designed with this in mind
|
||
563 however. This current is typically around 20 milliamps, but can be any
|
||
564 where from as little as 5 milliamp to as much as 120 milliamp (it can even
|
||
565 go momentarily into several amps when a line hit occurs.) In some cases
|
||
566 such as a private line there is no line current at all which is why
|
||
567 the telephone won't work on it, it was intended for equipment only.
|
||
568 **** CISTOP MIKEY ABSOLVING ALL KNOWLEDGE OF THE ABOVE **** 20 JULY 83 ****
|
||
569 P.S. Be sure to hook your ring detector ahead of the relay contacts (or
|
||
570 possibly across them if you are only using a single set of contacts.)
|
||
571 so that you can see the phone line ringing.
|
||
572 **************************************************************************
|
||
573 I GREATLY APPRECIATE ALL THE ABOVE COMMENTS, HOWEVER MOST OF THE PROBLEMS
|
||
574 THAT WERE OUTLINED I HAVE ALLREADY DISCOVERED ON TUESDAY...I HAD SOME WEIRD
|
||
575 REMEDIES. THIS BEGINS THE TALE...
|
||
576
|
||
577 FIRST I WANTED DIRECT CONNECT...SO I THOUGHT THAT I WOULD BUY SOME AUDIO
|
||
578 OUTPUT TRANSFORMERS AND SEE HOW THESE WOULD WORK IN CONJUNCTION WITH MY
|
||
579 MODEM. WELL...I HAD A FEW PROBLEMS. FIRST, AS WAS ALREADY MENTIONED, THE
|
||
580 RESISTANCE OF THE TRANSFORMERS WASN'T QUITE RIGHT (TO SAY THE LEAST). I SOLVED
|
||
581 THIS PROBLEM BY PUTTING TWO 1N914 SINGNAL DIODES HOOKED BACK TO BACK (ANODE TO
|
||
582 CATHODE, CATHODE TO ANODE) IN ONE WIRE OF THE LINE COMING FROM THE MIC OF THE
|
||
583 PHONE (I HAD MY MODEM ONLY HALF DIRECT CONNECT TO START MY ADVENTURE) GOING TO
|
||
584 THE SPEAKER OF THE MODEM. I HAD THE 8OHM SIDE OF THE TRANSFORMER (THE SECONDARY)
|
||
585 CONNECTED TO THE SPEAKER AND THE PRIMARY CONNECTED TO THE MIC OF THE PHONE.
|
||
586 BUT I FOUND THAT THE VOLUME LEVEL WAS WAY TOO LOW. SO I TURNED THE TRANSFORMER
|
||
587 AROUND AND HOOKED IT UP BACKWORDS...
|
||
588 IT WORKED! WELL...IT KIND OF WORKED. THE RESISTANCE WAS TOO LOW ON THE PHONE END
|
||
589 AND I HAD PROBLEMS DIALING OUT. SO AFTER ADDING THE DIODES, THIS PROBLEM WAS
|
||
590 GONE. THEN I HAD PROBLEMS WITH KWJJ RADIO (BECAUSE I AM CLOSE TO THE TOWER).
|
||
591 I SOLVED THIS PROBLEM WITH SOME SHIELDED CABLE (WHICH WAS GROUNDED TO THE MODEM
|
||
592 GROUND). AS OF NOW, I HAVEN'T CONNECTED THE MIC OF THE MODEM TO THE SPEAKER OF
|
||
593 THE PHONE, BUT I DON'T THINK THERE WILL BE ANY PROBLEMS WITH THAT END. THEN I
|
||
594 GOT OUT MY DVM AND STARTED FOOLING WITH THE PHONE. I TRIED JUST ABOUT EVERY
|
||
595 IMAGINABLE CONFIGURATION (ON/OFF HOOK, RINGING, WHILE CALLING SOMEONE, ETC...)
|
||
596 AND THEN TRIED USING A DIODE ON ONE SIDE OF THE LINE, AND ON THE OTHER END OF
|
||
597 THE DIODE, I ATTACHED THE RELAY (12VDC
|
||
598 RELAY FROM RADIO SHACK, 12 MA, 1200 OHM COIL). THIS WORKED FINE WHEN THE PHONE
|
||
599 RANG. I THOUGHT ABOUT THE LOAD ON THE LINE FROM THE RELAY AND DECIDED ON
|
||
600 DISCONNECTING THE BELL AND REPLACING IT WITH A PIEZO BUZZER (RADIO SHACK
|
||
601 273-065), WHICH I HOOKED TO THE COIL OF THE RELAY. WHEN EVER THE PHONE RANG,
|
||
602 ABOUT 10VDC WENT TO THE RELAY/BUZZER, WHICH IS JUST ABOUT RIGHT. NO VOLTAGE IS
|
||
603 ON THE RELAY COIL DURING ANY OTHER OPPERATION (ON/OFF HOOK, DIALING, ETC...),
|
||
604 ONLY WHEN THE PHONE IS RINGING. IT ALL WORKS FINE RIGHT NOW (HOW DO YOU THINK
|
||
605 THIS MESSAGE GOT HERE?) AND ALL THAT I HAVEN'T DONE IS HOOK THE OTHER SIDE OF
|
||
606 THE PHONE UP (WHICH I AM GOING TO DO TONIGHT). SO WHATEVER YOU DECIDE TO DO,
|
||
607 IT IS A MATTER OF TIME, MONEY (I HAD MOST OF THE PARTS ALREADY), AND WILLINGNESS
|
||
608
|
||
609
|
||
610 HAVE FUN, WHATEVER YOU DECIDE...
|
||
611
|
||
612 A MESSAGE TO EVERYONE CONCERNED...THE SYSM. 00:51:30 21 JULY 83 ***
|
||
613
|
||
614 *+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+
|
||
615 P.S. I JUST GOT DONE HOOKING MY MODEM UP TO TOTALLY WORK DIRECT-CONNECT, BOTH
|
||
616 TX AND RECEIVE. IT WORKS JUST GREAT...I THINK I AM GOING TO ADD A FEW RESISTORS
|
||
617 TO THE CIRCUIT TO CUT DOWN ON THE LOAD. THIS WILL PROBABLY TAKE THE STRAIN OFF
|
||
618 OF MY MODEM AND I WILL OUTPUT A SLIGHTLY HIGHER VOLUME...ALL THE BETTER...I
|
||
619 AM DOING IT TO FEEL MORE SECURE AND TO PLEASE ALL YOU DOUBTING-THOMASES.
|
||
620
|
||
621 TRYING TO IMPROVE EVERYTHING...THE SYSM
|
||
622
|
||
623 +*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*
|
||
|