284 lines
7.7 KiB
Plaintext
284 lines
7.7 KiB
Plaintext
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!! THE BUG DETECTOR !!
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BY: FORD PREFECT
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UPLOADED BY: The Phoney Phoner
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and The Skeleton Krew
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What you will need:
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(the number in brackets is a reference
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number which matches the schematic. The
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number in paranthesise is the amount of
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the part needed.)
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[1] (1) 1n34a crystal diode
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[2] (2) 2n107 audio transistors
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(ge-2 or equivalent)
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[3] (1) 3k ohm variable resistor
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[4] (2) 560 ohm 1/2 watt resistor
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[5] (1) 15k ohm variable resistor
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[6] (1) 500 ohm variable resistor
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[7] (1) .002 Uf capacitor
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[8] (1) 1.5 Volt aa battery
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[9] (1) aa battery holder
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[10] (1) 0-300 microammeter
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(lafayette 99-g-5028 or
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equivalent)
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[11] (1) 10 millihenry choke (ohmite
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z-50)
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[12] (1) single-pole single-throw
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(spst) toggle switch
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[13] (1) project box (radio shack)
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[14] (1) antenna (either from an old
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transistor radio or a stiff
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piece of wire will also work)
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[15] (1) 2000 ohm headset (or a mini-
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ature earphone like most tv
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and radios use)
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the parts can be purchased from radio
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shack for less than $20. This is a
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very good high-gain meter-type bug
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detector. It has a crystal diode with
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2 amplification stages to boost the
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power of the meter. This produces a
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broad-band, battery-powered, receiver
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that can sense radio-frequency transm-
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itters up to a mile away. Unfortun-
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ately, it will also pick up a commerc-
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ial am or fm station up to 3 miles
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away....
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Bug detector schematics:
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[14] [1]
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(*)-----+------\<---+------+----\
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\ \ \ \ \
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\ \ \ \ \
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\-/ ( / [7] \ \
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v ) [3] \ --- \
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[11] ( / ^^^ \
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[0] ) --> \ \ \
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\ \ / \ \
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\ \ \ \-/ \
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\-/ \ \ v \
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v ----+ \
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\ [0] \
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[0] \ \
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\-/ \
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v \
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\
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[0] \
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\
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\
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---------------------------------------
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\ /----\
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\ ( /--)-----------\ --->>b<<
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\ ( \/ ) \ \
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------(---\ ) \ \
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( \\ ) ----+---\
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( <--)-----\ \ \
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[2] \----/ \ \ \
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\ \ \
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\ / \
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[0] \-/ \ \
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v / \
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[4] \ \
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/ \
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\ \
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\ \
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>>a<< \
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\
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\
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---------------------------------------
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\
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\ [12] [8&9]
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\ ____ <-><+>
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\ / \
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---------() ()-----\ \---->>c<<
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\
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[4]
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>>a<<--------\/\/\/\/\----->>c<<
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---------------->>d<<
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\
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[2] /---\-----\
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( \ )
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( \-\ )
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>>c<<----(---\ \-----)----\
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( \-->-\ ) \
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( ) \
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\---------/ \
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[0] \-/
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v
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[5]
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>>b<<-------\/\/\/\/\---
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^
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\
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\
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------------>>d<<
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[6]
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>>d<<-------/\/\/\/\/--
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^
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\
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\
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Uploaded to: The Party Line
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(415) 447 - 0963
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************ CAR TRACKER *************
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Uploaded By: The Phoney Phoner
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And The Skeleton Krew
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**************************************
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By: Ford Prefect
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"my name is bond, james bond."
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My next gadget is what is called a
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bumpbeeper. It attaches to the under
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side of a car with magnets and then
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sends out a signal that can be heard on
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a radio.
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Parts list: () = diagram #
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(1) 2n635a transistor
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(2) 4.3K 1/2 watt resistor
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(3) 1 meg potentiometer
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(4) 10k 1/2 watt resistor
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(5) 50pf capacitor
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(6) 365pf variable capacitor
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(7) .005Uf capacitor
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(8) .01Uf capacitor
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(9) ferrite loopstick (from a crys-
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(10) coil [see text] tal radio)
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(11) single-pole single-throw switch
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(12) 9 volt battery
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(opt.) Battery clip & case
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(13) antenna
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this device is a constant tone signal-
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ling source that can be tuned to any
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clear spot below 1000 khz. If magnets
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are attached to the case, it can quick-
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ly be installed under the persons car.
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(9) Is a standard ferrite loopstick tha
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t can be purchased at radio shack.
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(10) Is simply 12 turns of plastic cov-
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ered hookup wire wound over (9).
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13
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(*)-------\(----+-----______--- >>a<<
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\ \ ^^^^^^
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\ 5 \ \ 9
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--- -\(-- --\(--->>b<<
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- 6 \ 7
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v \
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--->>a<<
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>>a<<------+------+------o/ o-----
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\ \ 11 \
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/ --- \
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\ - \
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/ v \
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4 \ --------
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\ \
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\ --[][]->>c<<
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--->>b<< 12
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"@<40> j<><6A> >>c<<----/\/\/\/\----+-----+-------
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2 \ \ \
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\ \ \
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>>d<<---)\------- \ \
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v >>e<<
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8 -----/\/\/\--
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\ 3
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>>f<<-----------+
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/---\
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1 ( \ )
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( / /-)---->>d<<
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( \ > )
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( ----- )
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( \ )
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\---/
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\
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\
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>>b<<
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>>e<<-------
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\
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(
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)
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(
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10 )
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\
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------>>f<<
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>>d<<---
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\
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---
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-
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v (ground)
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to tune the transmitter:
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1)pick an empty spot on the am car
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radio below 1000 khz.
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2)Switch on the transmitter with the
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spst switch.
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3)Tune the 365 variable capacitor
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slowly until a shrill note can be
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heard from the car radio.
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4)The pitch of the note is adjustable
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by turning the 1 meg potentiometer
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resistantly,
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Ford Prefect
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Uploaded to: The Party Line
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(415) 447-0963
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///////////////////////////////////////////////////////
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// The PIRATES' HOLLOW //
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// 415-236-2371 //
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// over 12 Megs of Elite Text Files //
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// ROR-ALUCARD //
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// Sysop: Doctor Murdock //
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// C0-Sysops: That One, Sir Death, Sid Gnarly & Finn //
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// //
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// "The Gates of Hell are open night and day; //
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// Smooth is the Descent, and Easy is the way.." //
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///////////////////////////////////////////////////////
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