This reminds me that some where I have a very strange variable capacitor
that is oil filled and has a bellows to allow operation at high altitudes.
It is obviously an RF variable, perhaps a pre-vacuum capacitor type for
high altitudes and voltages.
It is neat because it is enclosed in a glass envelope and you can see all
the insides. It is constructed as a usual capacitor with rotor and stator
plates. Not like the coaxial ones as in vacuum capacitors.
Needless to say a rotary shaft vacuum connection would be difficult
but not impossible.
73
Bill wa4lav
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|