18_19_MHz_VFO

Published:2009/7/8 2:15:00 Author:May | From:SeekIC

Series-tuned Clapp oscilla-torusing high-impedance JFET at has good fre-quency stability. Diode stabilizes bias. Air variable C1 provides frequency spread of exactly 100 kHz. L1 is 25-58 μH slug-tuned (Miller 43A475CBI). L2 is 10-18.7 μH slug-tuned (Miller 23A155RPC).—D. DeMaw, More Basics on Solid-State Transmitter Design, OST, Nov.1974, p 22-26 and 34.



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