There is not that much room between switch placment for a big pot.
It is listed in my switch list you could fine then fairly cheap or use it as a cross refrence.
The Intercom panel
INT - HM are CLAROSTAT in out switched potentiometers VA388-10K BJ-3
VOL is a Small 10 K potentiometer
Rotary Selector Dial. is a 5 position rotary to get the correct angle between stops last unmarked position is used for TACAN audio (Morse ID)
Call MS25089-3G
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