Published:2009/7/16 21:17:00 Author:Jessie | From:SeekIC
Crystal oscillator (2 Mc) triggers blocking oscillator Q4 that counts down by 5 to produce 400-kc timing pulses for test oscilloscope using tv-type scanning.-R. P. Rufer and W. A Karotski, Use Raster Oscilloscopes for Easter Time Measurement,Electronics,35:52,p 38-42.
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