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 Post subject: 1920s Superhet ID?
PostPosted: Aug Fri 24, 2012 5:21 am 
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Obviously a very nice homebrew or shop built radio but what make are the green IF transformers?

Norman


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 Post subject: Re: 1920s Superhet ID?
PostPosted: Aug Fri 24, 2012 5:46 am 
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Might be a converter since there doesn't appear to be a speaker! Some of the early radios used earphones only, however.


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 Post subject: Re: 1920s Superhet ID?
PostPosted: Aug Fri 24, 2012 5:53 am 
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Early battery sets used external horn speakers, or headphones. Very few models, esp. homebrews, included a speaker in the cabinet.

That looks like a homebrew superhet. RCA held the patents.

Pete

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 Post subject: Re: 1920s Superhet ID?
PostPosted: Aug Fri 24, 2012 1:35 pm 
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Thats a Hanscom reflexed superhet. Plans were published in the late 1924 Radio Broadcast magazine.

Duane

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 Post subject: Re: 1920s Superhet ID?
PostPosted: Aug Fri 24, 2012 1:47 pm 
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It is interesting how very little sheilding went into these early superhets.

-Steve

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 Post subject: Re: 1920s Superhet ID?
PostPosted: Aug Fri 24, 2012 3:59 pm 
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Duane B wrote:
Thats a Hanscom reflexed superhet. Plans were published in the late 1924 Radio Broadcast magazine.

Duane


Thanks! The knowledge among members of this group and the power of the internet is proven again!

By any chance can anyone scan and post the article so I can show it to the budding collector that asked about his garage sale find?

Norman

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 Post subject: Re: 1920s Superhet ID?
PostPosted: Aug Fri 24, 2012 11:59 pm 
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A PDF file of the entire magazine that this set is described in is available online:

http://www.vacuumtubeera.net/RadioBroad ... 924-11.pdf

Duane

PS I would be interested in buying the set if the owner loses interest. I've been looking for a Hanscom for some time.

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 Post subject: Re: 1920s Superhet ID?
PostPosted: Aug Sat 25, 2012 2:19 pm 
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Here's another example from ARF member Richard Ammon's "The Rolls Royce Of Reception" web site.

http://www.superhets.info/Hanscom6-Front.jpg

http://www.superhets.info/Hanscom6-Back.jpg

You should ask Richard what info he might have on that circuit.

Duane B talks about a Hanscom in this thread.

viewtopic.php?t=111490&start=340

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 Post subject: Re: 1920s Superhet ID?
PostPosted: Aug Sat 25, 2012 4:56 pm 
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Thanks guys. This is great information. I'll pass it along to the fellow who has the radio. Hopefully he will consider restoring the radio.

Norman

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