FM Bug Transmitter Take a look at this fm spy transmitter which can be used as a bug transmitter or as fm bug too. It uses a single IC 74F13, one coil, a capacitor, one trimmer, one resistor and ...

Building on that concept, the next objective was to create an even smaller FM radio compact enough to fit inside an earbud.

To keep the fm transmitter circuit simple as well as compact, it was decided to use a chip made by Maxim Integrated Products, the MAX2606. This IC from the MAX2605-MAX2609 series has been specifically ...

[Sean Michael Ragan] built this FM transmitter which shows off its circuitry via a clear plastic dome. The device is electrically identical to one we looked at in September. That version championed… ...

He gets bonus points for using a 1/4 – 20 bolt for winding the coil, too. The power supply for the transmitter is a single 9V battery, the battery connector being salvaged from a dead 9V.

Visible Light Communication (VLC) has great potential to be implemented in Internet of Things (IoT) application to create a cost-effective high-speed IoT data communication system. As the VLC system ...