100_KC_TO_5_MC

Published:2009/7/15 2:49:00 Author:Jessie | From:SeekIC

Simple transistor circuit converts 100-kc standard frequency of frequency counter to 5 Mc for use with 500-Mc frequency converter which requires 5.Mc reference frequency. Q1 is doubler. Q2 and Q3 form unique quintupler evolved from Schmitt trigger, in which square-wave symmetry is preserved by maintaining triggering point at zero crossings of input signal. Q4-05 is similar quintupler, but without cross-coupling feedback.-H. T. McAleer, Unique Frequency Multiplier, Frequency, May-June 1964, p 36-37.



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