A very old project. By using a single VU meter IC (LM3915?) and a
another IC that sequentially connects the columns of LEDs to ground (i.e.
the time scale), the VU meter effectively "sweeps" across the waveform in
a quick succession.
Breadboarded 80-LED Analogue Oscilloscope
David Scholten wrote 09/02/2021 at 07:03
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