[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
>
>
>
>
>
>
>
>
>
>
>
> Visithttps://www.qrz.com/db/W5JV for some great vacuum tube finds.
>
>
>
> ______________________________________________________________
> Boatanchors mailing list
> Home:http://mailman.qth.net/mailman/listinfo/boatanchors
> Help:http://mailman.qth.net/mmfaq.htm
> Post:mailto:Boatanchors at mailman.qth.net
>
> List Administrator: Gary Harmon, K5JWK
> ** For Assistance:gharmon at idworld.net **
>
>
> This list hosted by:http://www.qsl.net
> Please help support this email list:http://www.qsl.net/donate.html
> Message delivered toark at ar88.net
--
ARK Sig Block Al Klase - N3FRQ
Jersey City, NJ
http://www.skywaves.ar88.net/
More information about the Boatanchors
mailing list