[time-nuts] Re: Sulzer 5B Quartz Frequency Standard Questions

[Martin VE3OAT]

Hi, Stan,

I read the digest so others might have already answered one of your 
questions.

The copper rod and outer cylinder are not "contacts" but instead are the 
"plates" of a small capacitor that is used the change the resonant 
frequency of the crystal in the oven.  Turning the dial on the front 
panel changes the amount of engagement of the copper rod inside the 
outer cylinder, thus changing the capacity between these two "plates".  
It's that simple.

Have fun!

73,
... Martin   VE3OAT