124 lines
5.5 KiB
Plaintext
124 lines
5.5 KiB
Plaintext
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***********************************************************
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*
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MEMBER NAME: BLACK2 *
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*
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***********************************************************
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/-/-/-/-/-/-\-\-\-\-\-\
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<:-\-Black Box Plans-/-:>
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\-\-\-\-\-\-/-/-/-/-/-/
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(>Introduction<)
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What is a BLACK BOX? A BLACK BOX is a device that is hooked up
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to your phone that fixes your phone so that when you get a call, the
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caller doesn't get charged for the call. This is good for calls up to 1/2
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hour, after 1/2 hour the Gestapo (the you can guess what happens.
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What this little beauty does is keep the line voltage from
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dropping to 10v when you answer your phone. The line is insted kept at
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36v and it will make the phone think that it is still ringing while your
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talking. The reason for the 1/2 hour time limit is that the Gestapo thinks
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that something is wrong after 1/2 an hour of ringing. (I mean, come on)
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(>Phone Modification Instructions<)
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All parts are available Radio Shack. Using the least possible parts
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and arrangement, the cost is $0.98; and that is parts for two of them!
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Talk about a deal! If you want to splurge then you can get a board, and
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a switch. There are two s
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** Schematic 1 for most fones **
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** LED ON: BOX ON **
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FROM >--------------------GREEN-> TO
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LINE >--! 1.8k LED !---RED--> FONE
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!--/\/\/\--!>--!
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! !
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------>/<-------
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SPST
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Parts: 1 1.8k 1/2 watt resistor
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1 1.5v LED
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1 SPST switch
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*You may just have two wires which you connect together for the switch.
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** Schematic 2 for all fones **
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** LED ON: BOX OFF **
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FROM >---------------GREEN-> TO
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LINE >------- ---RED--> FONE
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! LED !
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---->/<--!>--
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! !
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---/\/\/---
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1.8k
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Parts: 1 1.8k 1/2 watt resistor
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1 1.5v LED
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1 DPST switch
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Here is the PC board layout that I recommend using. It is neat and is
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very easy to hook up:
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Schematic #1 Schematic #2
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************** ****************
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* * * ------- *
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* --<LED>--- * * ! ! *
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* ! ! * * ! <SWITCH> *
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* RESISTOR ! * * ! ! ! *
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* ! ! * * ! ! / *
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* -------- ! * * ! ! \ *
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* ! ! * * ! <LED>! / *
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* --SWITCH-- * * ! ! \ *
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* ! ! * * ! ! / *
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L * ! ! * F L * ! ! ! * F
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I>RED- -RED>O I>RED- ---RED>O
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N>-----GREEN---->N N>-----GREEN------>N
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E * h * E E * * E
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************** ****************
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Once you have hooked up all the parts, you must figure out what
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set of wires go to the line and which go to the fone. This is because of
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the fact that LED's must be put in, in a certain direction. Depending on
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which way you put the LED is what controls what wires are for the line &
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fone.
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In order to find out, hook up the box in one direction using
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one set of wires for line and the other for phone.
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*NOTE* For Model I switch should be OFF.
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*NOTE* For Model ][ switch should be
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set to side connecting the LED.
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Once you have hooked it up, then pick up the fone and see if the
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LED is on. If it is, the LED will be lit. If is doesn't light then
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switch the wires and try again. Once you know which are which then label
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them. *NOTE* - If neither directions worked then your switch was in
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the wrong position. Now lable the switch in its current position
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as BOX ON.
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(>Black Box Usage<)
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The purpose of this box is not to people who call you so it would
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make sense that it can only be used to recieve calls. When the box
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is *ON* then you may only recieve calls. Your phone will ring like normal
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and the LED light on the box will flash. When you answer the fone the LED
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will light and the caller will not be charged. Hang up the fone after you
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are done like normal. You will not be ab
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_____________________________________________________________________________
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_
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___________________________________-END-_____________________________________
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_
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