Op-Amp Function Generator
The LM324 quad op-amp chip is nearest the camera. The timing capacitor is a 2.0uF type, rated at several hundred volts, recycled from an old valve (vacuum-tube) NMR machine. I could probably fit an even bigger one, to get the frequency lower still. It's down to about 1Hz now, which is OK for a synthesiser LFO, but I'd prefer it to go even slower.
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Uploaded on March 14, 2013
Taken on March 13, 2013
Op-Amp Function Generator
The LM324 quad op-amp chip is nearest the camera. The timing capacitor is a 2.0uF type, rated at several hundred volts, recycled from an old valve (vacuum-tube) NMR machine. I could probably fit an even bigger one, to get the frequency lower still. It's down to about 1Hz now, which is OK for a synthesiser LFO, but I'd prefer it to go even slower.
616
views
0
faves
0
comments
Uploaded on March 14, 2013
Taken on March 13, 2013