This is an old electronic scheme of the Handy Talky (HT) circuit. This electronic circuit is quite popular among electronic hobbies in the 90s. If […]


This is a simple low cost circuit of an active FM booster that can be used to amplify the FM band signal, so you can […]

This long-range FM radio transmitter has an additional RF power amplifier stage, after the oscillator stage. The extra RF power amplifier used to strenght up […]

This is a 2W RF amplifier circuit build with single power MOSFET LF2810A. Figure A Figure A is the schematic of the microstrip single stage […]

This the Good Quality FM transmitter for your stereo or any other amplifier gives you a pretty good signal strength up to a range of […]

This is the FM transmitter circuit which apply 4 radio frequency stages, that are a VHF oscillator designed around transistor BF494 (T1), a preamplifier designed […]

This is a low cost and easy build low powered FM transmitter. The range of the FM transmitter claimed about 300 feets when running at […]

This two chips AM radio receiver circuit is a tuned radio frequency (TRF) receiver of the standard AM (amplitude modulation) radio with broadcast frequencies at […]