Posted by Wayne Parham [ 67.67.28.122 ] on May 08, 2005 at 15:48:17:
In Reply to: Air Dialectric caps posted by Manualblock on May 08, 2005 at 10:04:09:
Variable capacitors are used in the tuners of radios. They have small capacitance values, in the picofarad range, because they are physically small. Capacitors are simple devices, and using a moving mesh of plates to provide adjustable capacitance is perfect for for a tuner.
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