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City: West Bend, Wisconsin
After that nightmare Airline movie dial chassis, thought I'd tackle something a bit less messed up. Working on a 41-230 with a bad audio output transformer. Can anyone recommend a suitable new manufacture replacement that can be ordered online (like from Radio Daze or AES)?
Here's the schematic. It's #42.
http://www.nostalgiaair.org/pagesbymodel...013398.pdf
Thanks!
Greg V.
West Bend, WI
Member WARCI.org
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City: Roslyn Pa
Hey buddy you got to work on that addiction!!!!!
Well you need about 10K for the plate load so I found this which is 25K at 8 ohms on the secondary. So with the assumption that your spkr is 4 or less ohms that will put us in the ballpark. Did see a few others but they were 2 or 3 times the price.
https://www.tubesandmore.com/products/tr...12-w-8-ohm
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
Posts: 1,522
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City: West Bend, Wisconsin
Ha! I actually had this one out of the cabinet before I got the movie dial set. When I found that one, this little Philco got pushed off to the side.
This is real tiny little transformer. The body is only about 1" wide, so not a lot of room under the chassis. I'm seeing 700 ohms on the schematic. I certainly trust your judgement but before I order one I just wanted to confirm that the 25K you suggested will work?
Greg V.
West Bend, WI
Member WARCI.org
Posts: 7,253
Threads: 267
Joined: Dec 2009
City: Roslyn Pa
We are speaking two different languages one DC resistance (on the schematic) and AC impedance (the 25K).
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
Posts: 1,522
Threads: 240
Joined: Sep 2012
City: West Bend, Wisconsin
Ah! That makes more sense
Greg V.
West Bend, WI
Member WARCI.org
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