The schematic diagram shows an audio stage with a common-collector circuit. This does not damp the tuned circuit, but instead actually increases its response. This yields good sensitivity and ...

Back in October 2011, EDN’s Paul Rako published Ron Quan’s Design Idea, “A super-het radio runs 5 years on a C-cell, plus a pentode radio” and it was a very well viewed and informative technical ...

If you cultivate an interest in building radios it’s likely that you’ll at some point make a simple receiver. Perhaps a regenerative receiver, or maybe a direct conversion design, it’ll take a couple ...