CRYSTAL SET BUILDING & MORE, VOL 6,7

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Crystal Set Building & More, Vols 6,7
Comb bound in 8.5 by 11 format. Great titles in this compendium of Volumes 6 & 7: An FM Xtal Set, A Crystal Set Headphone from a Cat Food can, The Den Two Crystal Set, From Crystal Set to Superhete, The Simple TRF Set, Flame Detector, The Foxhole Set, TRF Receiver using the ZN414, WWII Underground Xtal Radio, Capacitance of the Parallel Plate Capacitor, How to Make a Double Crystal Receiver, A J-FET Shortwave Regenerative Receiver, The Cigar Box Set, A Capacitive Transducer Receiver, Grid Leak Detector One-Tube, and correspondence Tidbits.