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Radio devices - list of circuit diagrams
The circuit is designed to cover 88-108MHz FM Broadcast Band. However, the circuit is very stable at my place and provides a clean-output through seven (7) element Butter-worth low-pass filter
author: David Celestin, Ghana, West Africa visits: 2402 
This circuit is deliberately limited in power output but will provide amplitude modulation (AM) of voice over the medium wave band.
author: visits: 1355 
A compact three transistor, regenerative receiver with fixed feedback
author: visits: 1175 
Circuit designed to amplify the input from a telescopic whip antenna
author: David Sayles visits: 636 
An FM regenereative receiver using a single FET and one audio amplifier IC.
author: Patrick Cambre visits: 604 
Although only low power this circuit may be tuned to operate over the range 87-108MHz with a range of 20 or 30 metres.
author: visits: 546 
An AM portable radio receiver made from the ZN414 IC
author: Andy Collinson visits: 517 
A Short Wave Receiver based on the MK484 (formerly ZN414) that includes the tropical bands and 49 metre bands
author: Andy Collinson visits: 414 
This circuit is designed to be used in conjunction with the standard 4 foot square loop used in MW for long distance reception
author: David Sayles visits: 376 |
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