I'm about to work on a silvertone am/fm model 4019 and just located the schematic.
This uses a 50c5 for the left channel audio and a 50HK6 for the right channel.
Why whould they use two different tubes to do this in apparently identical circuits?

Hi Peter

Most likely your radio has a solid state rectifier. No 35W4 tube with a lamp tap? The 50HK6 has a filament tap for a lamp.

Norm

:I'm about to work on a silvertone am/fm model 4019 and just located the schematic.
:This uses a 50c5 for the left channel audio and a 50HK6 for the right channel.
:Why whould they use two different tubes to do this in apparently identical circuits?
:

Ahh.. YES Norm... you are so right... I didn't even bother to consider that...

So...that's why they only need one... ah hah...
It's so refeshing to have the light turned on by a friend....lol

"for every question... there is an answer"

.... now about that chicken & egg thing, Norm..