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TUNNEL_DIODE_WIRELESS_MIKE

2016-11-23 17:43  
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TUNNEL_DIODE_WIRELESS_MIKE
Two cascaded 2-ma germanium tunnel diodes serving as cascade oscillator and 90-Mc f-m modulator give range of over 100 feet. Coil L is about 5 microhenrys, with five turns a quarter-inch in diameter and half an inch long.C is 24 pf.-W. Ko, Tunnel Diode F.M Wireless Microphone, Electronics, 33:47, p 93-95.