Telephone Bug Circuit
(2 votes, average: 3 out of 5)
While looking around on MAKE Magazine, I found a useful little circuit for a telephone bug. I know how much you guys love circuit diagrams!
The bug is a serial device, which meals the phone connects to the bug, and then the bug connects to the telephone line. This means that only that particular phone is bugged. Potentially, you could build the bug into the phone itself.
The design is suited to the US phone network, not sure if it’d work in the UK. You can substitute 4 1N4148 Diodes for the IN4384 Diodes too.
October 5th, 2007 at 1:29 am
hey
im vinnie i like that little phone bug u made, can one of these little guys be built into a cell phone for listening if that is what this bug u built is used for.
hope u can help thanks
vinnie
October 5th, 2007 at 9:37 am
Hi Vinnie,
Cell phones work completely differently, and so this device would be useless. It’s actually exceptionally difficult to bug a mobile phone unless you work for the government.
Thanks
Dan