 Regenerative FM Broadcast Receiver
I must admit, at first I was sceptical looking at the circuit diagram, a single 1.5 V cell supply? But after a quick check of the audio stage bias with my calculator I saw that Mr Hall had designed it well, so I dug out the solderless breadboard and made up the audio strip. It "blurt" tested OK, and was surprisingly quiet and well-behaved (I used BC548B devices).
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