10-13-2019, 01:42 PM
No they were designed by Sylvania primarily for the auto radios and two way radios. Since they lock in they don't wiggle out as a vehicle bounces down the road. Sylvania was the main supplier of tubes for Philco.
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