07-26-2021, 09:12 AM
50A5 is a lockal tube that is electrically the same as the 50L6 which has an octal base. The 50B5 and 50C5 are the same also but use a 7 pin miniature base.
If you want to make a change I'd go with the 50L6. The socket is easier to find.
If you want to make a change I'd go with the 50L6. The socket is easier to find.
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 "[-]")
