[ARC5] How Edwin Armstrong invented the superhet

[1oldlens1]

My experience exactly.  I don't remember if I found the patent, would be interesting to know the date.  The S-38 and the Echophone EC-1 were basically 5 tube wonders with an extra tube which served as BFO and NL.  The S-38/B and later eliminated the extra tube , giving up the NL .  I think the idea was to cut cost at a time when Inflation was rising rapidly.  I don't remember the circuit worked very well although I was able to sort of get SSB on the thing.  Sent from my Galaxy
-------- Original message --------From: Hubert Miller <Kargo_cult at msn.com> Date: 1/8/23  12:18 AM  (GMT-08:00) To: arc5 at mailman.qth.net Subject: Re: [ARC5] How Edwin Armstrong invented the superhet Those beginner level receivers that used regenerative IF, such as S-140, Knight Star Roamer, S-38, maybe others, I have never read a review that waspositive about this circuit. That was also my experience trying this on a Command Set receiver. When I read the article on the ARC-2 suggesting thistrick, I thought about just how well that would work out.-Hue Miller ______________________________________________________________ARC5 mailing listHome: http://mailman.qth.net/mailman/listinfo/arc5Help: http://mailman.qth.net/mmfaq.htmPost: mailto:ARC5 at mailman.qth.netThis list hosted by: http://www.qsl.netPlease help support this email list: https://www.qsl.net/donate.html
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/arc5/attachments/20230108/7fd8fbd7/attachment.html>