[Boatanchors] Transformer info hunt

Al Klase ark at ar88.net
Wed Sep 11 17:00:35 EDT 2024


Doug,

You should be able to sort that out with an ohmmeter.  The DC resistance 
of the windings will be roughly 10-20% of the design impedance.

AL

On 9/11/2024 9:50 AM, Doug Hensley wrote:
> I need pin out information on an audio interstage transformer made for Hammarlund by UTC.  Thinking probably 1940's.
>
> As best I can decipher on the worn paint, its labeled UTC-D ? 3551 and Hammarlund ?=31086-2.  IF anyone has any old transformer catalogs and has time to look, please see what you can find.  Rated for 3 watts, it matches a receiver output impedance of 7-8 kOhms to 600 ohms.
>
> Thanks in advance for any leads.
>
> Attached is a photo though I do. not know if they will come through.
>
> Doug W5JV
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> Visithttps://www.qrz.com/db/W5JV  for some great vacuum tube finds.
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-- 
ARK Sig Block Al Klase - N3FRQ
Jersey City, NJ
http://www.skywaves.ar88.net/


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