Circuit diagrams and schematics - Electronic projects

That’s right, we said STEREO! Just connect a cassette deck, CD player or mixer panel to the FM10C’s line level inputs and you’re on-the-air with a school, dorm, camp, home, church or neighborhood FM station! Here’s a great entry-level kit that will teach the basics of FM Broadcast Transmission while finding many uses around the [...]

The Circuit shown can transmit voice to exceptionally good range. Tune trimmer to hear the signal to your near radio. Frequency range is 88-108 MHz. Max current consumption is 30mA. You can power the bug with a 9Volt Battery, or you can plug a power supply to feed in 9-12 Volts. That bug will pick [...]

Here is a simple transmitter that when connected to a phone line, will transmit anything on that line (execpt the dial tone) to any FM radio. The frequency can be tuned from 88 to about 94Mhz and the range is about 200 feet. It is extremely easy to build and is therefore a good, useful [...]