RM50 help (internal burnt capacitors)

[reilly]

i have 2 burnt capacitors in the head itself
does anyone know there value?

they are:
R44A
R45A

thanks

 

[kc2eeb]

I strongly suggest you have the head looked at by a competent service
tech. The parts you are describing are resistors, NOT capacitors. If you are identifing them correctly, they are hum balance resistors connected across the output tube heater supply to ground. If they are burnt it means
the heaters shorted to ground. Not good. You have to eliminate the cause of the short and see what may have been damaged.
Randall has a great service department and they've got the parts.

 

[reilly]

yup, i plan on taking it into a tech

 

[kc2eeb]

Good idea. The most common reason they blow is a output tube short,
usually the heater to the cathode. They are probably 100 Ohm, 1 or 2 watt resistors. Make sure your tech checks the tube sockets for carbon arcing, burnt scorch marks on the sockets.