11-23-2021, 11:45 AM
>what caps to use for the filter condenser block
Film caps. Electrolytic caps will overheat and short do to the ripple current at the input cap.
>and the filament by-pass can
The filaments are power by an AC voltage. AC volt is fine on film caps but Not on electrolytic caps. They are polarized and have + and - . AC is constantly switching back and forth polarity wise 60 times a second. E caps don't like it one little bit and they short. Gotta go with film caps.
>P-T156 audio interstage transformer which I believe will work for the push-pull
Have use them for single plate to single grid and single plate to push pull grids. Works fine in both applications. The only thing is that you have to be mindful of not to exceed the primary's 10ma current rating.
https://www.tubesandmore.com/products/ca...c2341a2445
https://philcoradio.com/library/images/schem/86.jpg
GL
Film caps. Electrolytic caps will overheat and short do to the ripple current at the input cap.
>and the filament by-pass can
The filaments are power by an AC voltage. AC volt is fine on film caps but Not on electrolytic caps. They are polarized and have + and - . AC is constantly switching back and forth polarity wise 60 times a second. E caps don't like it one little bit and they short. Gotta go with film caps.
>P-T156 audio interstage transformer which I believe will work for the push-pull
Have use them for single plate to single grid and single plate to push pull grids. Works fine in both applications. The only thing is that you have to be mindful of not to exceed the primary's 10ma current rating.
https://www.tubesandmore.com/products/ca...c2341a2445
https://philcoradio.com/library/images/schem/86.jpg
GL
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
