resistor on 6jb6 screen?
Hello,
I am restoring an "old" drake TR-6, I just noticed a 100 ohm resistor
connected between pin 1 and pin 7 of
the three 6JB6 finals. I understand these two pins are both connected
internally to the screen grid, so
I wonder what's the purpose of those resistors which should just be
shorted by the internal connection
of the tubes. Looking at the TR-4 schematics I saw they have 68 ohm
resistor in the same place, so it
surely has a meaning but I can only guess it's a sort of protection in
case of a failure.
Does anyone know what they are for?
Thanks and best 73
Francesco IS0FKQ
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