[NSRCA-discussion] Useless Information

[Bob Richards]

Bingo! As far as I know, the variable caps did not wear out like the potentiometers of the day. But, they were large servos, too!
   
  Bob R.
  

Ron Van Putte <vanputte at cox.net> wrote:
  
On Jun 7, 2007, at 3:24 PM, Bob Richards wrote:

> More useless trivia: what type of feedback mechanism was used in 
> the old Heathkit servos (NOT a potentiometer).

It was a variable capacitor. The servos were cream color and had 
four wires.

Ron Van Putte

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