[Johnson] Johnson 500 Meter Shunt

[Harry Williams]

I am trying to physically locate the meter shunt resistor for the mod cathode current, R169. I have spent an hour trying to find it and can not. The schematic shows that it is located on the RF exciter deck. I have followed the circuit from pin 7 on the plug on the back of the deck to the meter switch and no resistor. Anyone no where it's located? My measurements show that it is open...maybe because it doesn't exist....

Thanks,
Harry
W0PIY