TEMPERATURE_TRANSMlTTER

Published:2009/7/21 20:55:00 Author:Jessie | From:SeekIC

2N169A transistor is used in tuned-collector oscillator, with large R.C time constant in emitter drcuit to give self-modulator for quenching action. Variation in quench break is accomplished with temperature-sensing element R1, consisting of glass-enclosed bead thermistor.-R. H. Elsken, Temperature Telemetry Aids Frozen Food Study, Electronics, 33:33, p 129-131.



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