RF_PREAMP

Published:2009/7/16 6:17:00 Author:Jessie | From:SeekIC

Boosts sensitivity of older tube-type communication receiver when added ahead of first RF tube. Has low noise figure. Values of C1, C2, and C3 are varied to suit receiver being used. Using 0.01 μF for these gives 20-dB gain from 0.5 to 30 MHz; if this overloads receiver on lower frequency ranges, try smaller values.-I. Math, Math's Notes, CQ, April 1975, p 37-38 and 62.



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