Two Station Intercom Kit

SKU
QK21
Out of stock
$19.95
Overview
This simple intercom kit contains two stations. Each unit contains its own microphone, speaker and audio power amplifier circuit using the LM386. Circuit may be modified to become a hard wired bug. Power can be sent to the remote unit.
This kit is a two station intercom.ᅠ It uses two wires to run between each intercom unit.ᅠ Each is self-contained with its own battery, speaker, microphone and amplifier circuit based on the LM386.ᅠ To use it you just push the switch and talk. Releasing the switch automatically turns the intercom off and leaves it in a state ready to receive input from the other station.ᅠ Each intercom station is identical.

If the pads of the push-on switch are shorted together and the switch removed, then one unit can act as a remote listening microphone or 'bug'.ᅠ You can remove the speaker so that there is no possibility that noise interference will 'click' the speaker and give away its position.ᅠ For long term use in this mode a four wire flat cable can be used so that 2 of the wires can be used to supply the battery power to the unit from the listening location.