-40%
Magnetic Field Receiver, Spy, Eavesdropper.
$ 52.8
- Description
- Size Guide
Description
This is an old transistor radio that has been modified to be a Magnetic Field Receiver.The RF section has been removed.
When this receiver is placed near a speaker wire it will "listen In'' on the audio signal with out connecting directly to the wires..
It was used to detect underground broadcast signals used a Museums, Zoos and Parks.
These places used buried wire induction antennas to broadcast recorded information about a display.
This is a very unique device.