FM - AM Regenerative Receiver by 2N2646
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The following is a design for a separately quench super regen receiver I first tried in early 1992. It worked far better than any other solid state design, so I built a portable version for use during my commuting from the Blue Mountains to Sydney on the train. Running off 10x AA nicads, this gave me a weeks listening before recharging. Only recently, I submitted the basic circuit to Silicon Chip, whereupon it was published in the April 2003 issue (and I won a nice true RMS meter as a result). My portable version differs in that I use varicap tuning, the output transformer has a 1K primary, and the output transistor is a BC108, with bias components to suit. It also uses the headphone lead for the aerial.
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