HK SAD512D BBD chip output signal

HK SAD512D BBD chip output signal

Kevin Reye

54 года назад

426 Просмотров

HK SAD512D BBD chip output signal on pins 3 & 4 @ .4-.5VDC bias & .1-2VAC peak to peak, delayed & modulated audio signal. Input source audio from tone generator at 1KHz, 1VAC peak-peak. R16 lifted.

Note the audio signal riding on top of ~71KHz clock pulses & the modulation pulsing. The speed of modulation occurring is controlled by the pedal's rate knob, & responds accordingly.
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