Title Short description
1.5 V FM bug v2 A little fm bug on 1.5 V, of a bit better construction.
450mW FM bug 450mW FM bug with two transistors.
Audio pickup from phone line Picks-up audio signal when near a phone that is in use.
Cordless phone receiver v1 Very good schematics for cordless telephone receiver 30-50 MHz.
Cordless phone receiver v2 Receiver for cordless telephones with a chip from a cordless phone.
Crystal controlled FM bug Yet another FM bug controller with crystal.
FM bug v2 FM bug.
FM bug v4 Strong and stable FM transmitter. Can be built as a bug.
FM bug v5 Ekstra small spy bug.
Laser eavesdropper A device that picks-up window vibrations, amplifies them and plays on a speaker.
Spy bug in a pen Small and narrowed FM transmitter at 12V.
Stronger bug Stronger bug and simple to build.
Telephone line recorder v1 A device that turns-on voice recorder automatically and taps to the phone line.
Telephone line recorder v3 A device that turns on voice recorder automatically and records phone conversation.


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