FM Super-Regenerative Valve Radio
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Uploaded by pettefar on Mar 23, 2010
FM VHF Radio Using Two Valves.
Case: Cigar Box discarded by tobacconist.
Components: Items I already own.
Speaker: Given by a friend.
PSU: 0-12V 0-12V transformer with voltage multiplier.
Radio circuit: Courtesy of http://cool386.tripod.com/new12at7/new12at7.html
Amplifier: Simple PCL86 triode-pentode amplifier.
Uploader Comments (pettefar)
All Comments (9)
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what name polish tub in decoder fm working
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@maplewoodsp VHF officially means 30-300MHz (LF 30-300 kHz, MF 300-3000 kHz, HF 3-30 MHz, UHF 300...3000 MHz and so on).
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Phill collins One more night playing on this amazing radio. Nice :)
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Hello sincere congratulations for the beautiful building, and for the quality and stability of the signal would be possible to have the scheme of the RF section? thanks hello Claudio
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It seems stable and can be handled. Any problems with 19kHz pilot tone from stereo stations??
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how hard would it be to make one that gets FM stereo?
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Very nice project. Thanks for sharing this. I would be concerned about no venting of the heat from the tubes. I realize that your reference to VHF is what we consider mostly commercial FM in the US. I think of VHF as the band where my amateur HT operates. :)
maplewoodsp 1 year ago
@maplewoodsp
Yes, I am a Ham too and my description is to show that this receiver is for VHF FM as opposed to other kinds of FM. Really, the FM broadcast band.
The valves don't get too hot and the case doesn't get very warm. I did check...
73 cheers
Nick on4Nic
pettefar 1 year ago