A Two-Valve VHF Super-Regenerative Receiver

摘要

Here is an interesting little project for those who enjoy constructing 'useful' pieces of radio gear. Not only is its circuitry a little unusual, it's also straightforward to make, with a performance that will be surprisingly good considering its relative simplicity. Even though it uses valves and mains voltages, a large part of the circuitry is operating at around 150V DC or less, which makes it a lot safer to work with than some. Operationally, because there is no reaction feedback control with this design, the user should find that the set is as easy to tune as a conventional superhet.