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crystal filter

   Also found in: Wikipedia 0.02 sec.
crystal filter [¦krist·əl ′fil·tər]
(electronics)
A highly selective tuned circuit employing one or more quartz crystals; sometimes used in intermediate-frequency amplifiers of communication receivers to improve the selectivity.


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Hertz manufactures and markets crystal devices including crystal units for ham radios and crystal filters.
Its products include crystal devices such as crystal units, crystal oscillators, crystal filters, ultrasonic transducers, synthetic quartz and crystal blanks.
E[acute accent]--Up-to-date product trends for crystal oscillators and resonators, crystal filters and SAW components
 
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