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"Brian Morrison" wrote in message
... On Wed, 7 May 2014 17:00:29 +0100 gareth wrote: I feel that I understand something when I can explain it to a rank amateur such that they will also understand it, but one thing I have yet to understand is the purpose of the quenching action in superregeneration, apart from thequenching itself. How does the quenching of an oscillating stage yield a detector that works for AM, FM and / or SSB, when the quenching frequency is supersonic, and neither at the RF nor the AF frequencies? The quench kills the gain cyclically, allowing the RF stage gain to build up again until the next quench. The result is that the RF, quench and AF frequencies are all present at the output of what is essentially a self-oscillating mixer. But what does the quench DO? What it its purpose? Why not just let the oscillator run for the self-oscillating mix? |