15_Hz_TO_150_kHz_IN_FOUR_RANGES

Published:2009/7/5 21:00:00 Author:May | From:SeekIC

Switch gives choice of ranges, with R2 and R3 varying frequency in each. Circuit draws only 4mA from two 9-V batteries and provides moderate output at 4-5 V. Connections shown are for TO-5 case of 741.-T. Schultz, Audio Oscillator. QST. Nov. 1974. p 43.



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