Posts: 19
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Joined: Sep 2013
City: Lexington, KY
Hello all,
I wanted to ask those more knowledgeable than I if this transformer would be a suitable replacement?
I was hoping to find something cheaper, but so far, no luck.
Thanks!
http://www.radiodaze.com/audio-transform...-hx125ase/
~Jon~
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City: Seattle
State, Province, Country: WA
Here are the specs on the original output transformer (might help with suggestions):
Part No. 32-7639
1-1J6G as Class B Triode
Imp @ 400Hz: 17,000 ohms
Primary (DC): 680 ohms
Source: Philco Speakers.xls from
http://www.philcoradio.com/phorum/showth...hp?tid=215
Posts: 7,297
Threads: 268
Joined: Dec 2009
City: Roslyn Pa
That's going to be a bit hard to find as the primary current is fairly high (40ma). The 1J6 is a new version of the older 19 dual power triode tube which can deliver 2w of audio. That's a lot for a farm set most will make a couple hundred mws.
A Stancor A-3335 or A-3880
Thordarson T-22S47 or T22S74
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!
Terry
(This post was last modified: 03-21-2017, 04:24 PM by
Radioroslyn.)
Posts: 4,864
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City: Sandwick, BC, CA
They don't have the specs listed for the one linked to like they do with the others. Honestly though, since it's a battery radio I think I would see about getting a used one or finding a cheaper substitute, battery radios, though interesting, aren't worth enough to warrant spending $40 on an output transformer. Have you tried Edcor for a transformer, or looked on the AES site?
Regards
Arran
(This post was last modified: 03-21-2017, 06:46 PM by
Arran.)
Posts: 19
Threads: 8
Joined: Sep 2013
City: Lexington, KY
Terry,
I will look for those or any substitute that will work.
Arran....I know this set isn't valuable and quite frankly I already have more in it than I could ever get out of it. But, this set belonged to my great grandparents. So I'm fixing it regardless of cost.
Any and all help finding a replacement or suitable substitute is greatly appreciated!!
~Jon~
Posts: 7,297
Threads: 268
Joined: Dec 2009
City: Roslyn Pa
Hi Jon,
I'd grab one of these:
https://www.tubesandmore.com/products/tr...output-8-w
Price is right and it's just a little low in impedance (9K vs 10K). RCA sez PtoP is 10k not 17 that Philco uses
I was looking over at ptotp
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!
Terry
(This post was last modified: 03-22-2017, 08:37 AM by
Radioroslyn.)
Posts: 19
Threads: 8
Joined: Sep 2013
City: Lexington, KY
Terry,
Thank you very much for the info and the link. I had posted a similar question on the Antique radio forum and someone also suggested this transformer.
My only concern is the Philco specs provided in Nathans post a few comments above shows an impedance of 17,000 ohm. Is this correct?
~Jon~
(This post was last modified: 03-22-2017, 07:50 AM by
Philcokid.)
Posts: 7,297
Threads: 268
Joined: Dec 2009
City: Roslyn Pa
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!
Terry
(This post was last modified: 03-22-2017, 08:52 AM by
Radioroslyn.)
Posts: 19
Threads: 8
Joined: Sep 2013
City: Lexington, KY
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