The mechanical life expectancy of any vacuum variable capacitor (independent of
manufacturer) is
dependent upon (1) length of stroke of the bellows, (2) speed of operation or
mechanical cycling of
the bellows and, (3) total number of cycles to be operated.
Generally speaking, capacitors with large diameter bellows and short strokes
will exhibit greater
life expectancy under [equivalent mechanical cycling] than capacitors with
small diameter bellows
and/or longer strokes.
Actual mechanical life expectancy is VERY dependent upon (1) the specific part
number capacitor and,
(2) the specific application, and manufacturers can provide [specific data] for
a [specific
capacitor] in a [specific application]. There is no "universal" answer to your
question for every
hypothetical vacuum variable capacitor ... it is VERY "type and application
specific".
You really need to work with a manufacturers applications engineer for your
specific requirements.
73, Dave, K1FK
Fort Kent, ME
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|