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Bug Detector/Car Tracker


NOTICE: TO ALL CONCERNED Certain text files and messages contained on this site deal with activities and devices which would be in violation of various Federal, State, and local laws if actually carried out or constructed. The webmasters of this site do not advocate the breaking of any law. Our text files and message bases are for informational purposes only. We recommend that you contact your local law enforcement officials before undertaking any project based upon any information obtained from this or any other web site. We do not guarantee that any of the information contained on this system is correct, workable, or factual. We are not responsible for, nor do we assume any liability for, damages resulting from the use of any information on this site.


!! THE BUG DETECTOR !!
BY: FORD PREFECT
UPLOADED BY: The Phoney Phoner
and The Skeleton Krew

What you will need:
(the number in brackets is a reference number which matches the schematic. The
number in paranthesis is the amount of the part needed.)

[1] (1) 1n34a crystal diode
[2] (2) 2n107 audio transistors
(ge-2 or equivalent)
[3] (1) 3k ohm variable resistor
[4] (2) 560 ohm 1/2 watt resistor
[5] (1) 15k ohm variable resistor
[6] (1) 500 ohm variable resistor
[7] (1) .002 Uf capacitoR
[8] (1) 1.5 Volt aa battery
[9] (1) aa battery holder
[10] (1) 0-300 microammeter
(lafayette 99-g-5028 or equivalent)
[11] (1) 10 millihenry choke (ohmite z-50)
[12] (1) single-pole single-throw
(spst) toggle switch
[13] (1) project box (radio shack)
[14] (1) antenna (either from an old transistor radio or a stiff piece of
wire will also work)
[15] (1) 2000 ohm headset (or a miniature earphone like most tv and radios
use)

the parts can be purchased from radio shack for less than $20. This is a
very good high-gain meter-type bug detector. It has a crystal diode with 2
amplification stages to boost the power of the meter. This produces a
broad-band, battery-powered, receiver that can sense radio-frequency
transmitters up to a mile away. Unfortunately, it will also pick up a
commercial am or fm station up to 3 miles away....

Bug detector schematics:

[14] [1]

(*)-----+------\<---+------+----\
\ \ \ \ \
\ \ \ \ \
\-/ ( / [7] \ \
v ) [3] \ --- \
[11] ( / ^^^ \
[0] ) --> \ \ \
\ \ / \ \
\ \ \ \-/ \
\-/ \ \ v \
v ----+ \
\ [0] \
[0] \ \
\-/ \
v \
\
[0] \
\

\
---------------------------------------
\ /----\
\ ( /--)-----------\ --->>b<<
\ ( \/ ) \ \
------(---\ ) \ \
( \\ ) ----+---\
( <--)-----\ \ \
[2] \----/ \ \ \
\ \ \
\ / \
[0] \-/ \ \
v / \
[4] \ \ / \
\ \
\ \
>>a<< \

\

\
---------------------------------------
\
\ [12] [8&9]
\ ____ <-><+>
\ / \
---------() ()-----\ \---->>c<<
\

[4]

>>a<<--------\/\/\/\/\----->>c<<


---------------->>d<<
\
[2] /---\-----\
( \ )
( \-\ )
>>c<<----(---\ \-----)----\
( \-->-\ ) \
( ) \
\---------/ \
[0] \-/
v

[5]

>>b<<-------\/\/\/\/\---

^
\
\
------------>>d<<

[6]

>>d<<-------/\/\/\/\/--
^
\
\

Uploaded to: The Party Line
(415) 447 - 0963



************ CAR TRACKER *************
Uploaded By: The Phoney Phoner
And The Skeleton Krew
**************************************

By: Ford Prefect

"my name is bond, james bond."

My next gadget is what is called a bumpbeeper. It attaches to the underside of
a car with magnets and then sends out a signal that can be heard on a radio.

Parts list: () = diagram #

(1) 2n635a transistor
(2) 4.3K 1/2 watt resistor
(3) 1 meg potentiometer
(4) 10k 1/2 watt resistor
(5) 50pf capacitor
(6) 365pf variable capacitor
(7) .005Uf capacitor
(8) .01Uf capacitor
(9) ferrite loopstick (from a crysTAL RADIO)
(10) coil [see text]
(11) single-pole single-throw switch
(12) 9 volt battery
(opt.) Battery clip & case
(13) antenna

this device is a constant tone signalling source that can be tuned to any
clear spot below 1000 khz. If magnets are attached to the case, it can quickly
be installed under the persons car. (9) Is a standard ferrite loopstick that
can be purchased at radio shack. (10) Is simply 12 turns of plastic covered
hookup wire wound over (9).

13
(*)-------\(----+-----______--- >>a<<
\ \ ^^^^^^
\ 5 \ \ 9
--- -\(-- --\(--->>b<<
- 6 \ 7
v \
--->>a<<

>>a<<------+------+------o/ o-----
\ \ 11 \
/ --- \
\ - \
/ v \
4 \ --------
\ \
\ --[][]->>c<<
--->>b<< 12

>>c<<----/\/\/\/\----+-----+-------
2 \ \ \
\ \ \
>>d<<---)\------- \ \
v >>e<<

8 -----/\/\/\--
\ 3
>>f<<-----------+
/---\
1 ( \ )
( / /-)---->>d<<
( \ > )
( ----- )
( \ )
\---/
\
\
>>b<<

>>e<<-------
\
(
)
(
10 )
\
------>>f<<



>>d<<---
\
---
-
v (ground)

to tune the transmitter:

1)pick an empty spot on the am car radio below 1000 khz.
2)Switch on the transmitter with the spst switch.
3)Tune the 365 variable capacitor slowly until a shrill note can be heard from
the car radio.
4)The pitch of the note is adjustable by turning the 1 meg potentiometer

resistantly,

Ford Prefect

Uploaded to: The Party Line
(415) 447-0963

 
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