how i can make those?
spy and anti spy sytem
http://www.ict-telecom.net/49_tbp_01_tad.htm
spy
-
- cyber messiah
- Posts: 1201
- Joined: 30 Apr 2006, 16:00
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I think this may be useful
Bug detector with beep
Parts List
R1 = 390 ohm, 5%
R2 = 390 ohm, 5%
C1 = 1000uF, 6V
C2 = 1.5uF, 6V
C3 = 3.9nF
C4 = 20pF, trimmer
C5 = 10nF (0.01uF)
IC = SN7413 or SN74LS13 (2)
and Electronic Eavesdropping Devices Detector
You may also like this
And All About Counter Surveillance Bug Tap Detectors
Hope that helps
Bug detector with beep
Parts List
R1 = 390 ohm, 5%
R2 = 390 ohm, 5%
C1 = 1000uF, 6V
C2 = 1.5uF, 6V
C3 = 3.9nF
C4 = 20pF, trimmer
C5 = 10nF (0.01uF)
IC = SN7413 or SN74LS13 (2)
and Electronic Eavesdropping Devices Detector
You may also like this
And All About Counter Surveillance Bug Tap Detectors
Hope that helps
Off Topic
i hope posting links is not against rules