09-02-2017, 09:24 PM
Hi Benny,
[Image: http://www.antique-radios.net/radpix/phi...clcksp.jpg][Image: https://thumbs.worthpoint.com/zoom/image...ce1b5a.jpg][Image: http://i1211.photobucket.com/albums/cc43...ch/_12.jpg]
Sometimes called a pie pan speaker they were used on the models 20,21, 70, and 90. The speaker seems to be all the same in terms of specs but the output transformers are different, some are for p/p output and others for single end output. One from a later version of the 90 or a model 70 should be fine for your application.
[Image: http://www.antique-radios.net/radpix/phi...clcksp.jpg][Image: https://thumbs.worthpoint.com/zoom/image...ce1b5a.jpg][Image: http://i1211.photobucket.com/albums/cc43...ch/_12.jpg]
Sometimes called a pie pan speaker they were used on the models 20,21, 70, and 90. The speaker seems to be all the same in terms of specs but the output transformers are different, some are for p/p output and others for single end output. One from a later version of the 90 or a model 70 should be fine for your application.
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
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
