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Radio devices - list of circuit diagrams
An FM regenereative receiver using a single FET and one audio amplifier IC.
author: Patrick Cambre visits: 30 
A simple passive circuit to match an antenna to a radio receiver
author: Andy Collinson visits: 29 
A complete AM radio set based on the MK484 IC (formerly ZN414). It uses a PNP transistor and can drive a 150R loudspeaker
author: Chad Castagana, Woodland Hills, CA visits: 29 
A VHF band TV transmitter using negative sound modulation and PAL video modulation
author: David Kwaku Celestin - Ghana, West Africa visits: 28 
A self powered (audio derived) repeater circuit for receiving a signal and re-transmitting it via the other radio
author: Miroslav Adzic visits: 26 
The antenna uses one, six foot square, six turn loop, and is aperiodic in nature, covering the frequency range 50KHz - 5000KHz.
author: Graham Maynard and Andy Collinson visits: 26 
This circuit provides an FM modulated signal with an output power of around 500mW
author: Paul K. Sherby visits: 26 
A portable FM transmitter that can be used to replace a FM microphone
author: David Celestin visits: 25 
schematic for the 530 kHz to 1650 kHz AM Broadcasting Band
author: Ramon Vargas - Lima, Peru visits: 25 
A compact 2 transistor transmitter for use at VHF frequencies
author: Rob visits: 25 |
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