Whites surfmaster repair

[Roscoereeso]

Aloha, I am brand new to this site but not detecting. My problem is I am a surfmaster junkie and have five detectors in need of repair. I sent three in to whites for repair before they went out of business and two broke immediately after return. I have tested my potentiometers and have a couple good ones. I was wondering if anyone out there knows the resistance for the coils? I have a couple that come in at 2.2. Does that seem right? Also my circuit boards are the 505-0227 (whites replaced the old ones) and the 194-a. Are the pots interchangeable? A little long winded, thanks in advance for any help or advice
Lots more questions