Thread: Need some information and pictures of No. 19 radio gear
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Old 27-10-09, 20:21
Bruce Parker (RIP) Bruce Parker (RIP) is offline
GM Fox I
  
Join Date: Feb 2003
Location: SW Ontario, Canada
Posts: 2,606
Default It's called a variometer
Used to match the wireless signal to the aerial. It's 4-3/4" diameter by 8" long (less the dial).
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