8-watt amplifier
Simple 8-watt audio amplifier (LM383)
Adjust negative power supply
Adjust negative power supply from 7905
Programmable power supply
Programmable power supply with LM317
Adjustable power supply with LM350
1.2 to 20 V, 3A power supply with LM350
Function generator
Function generator by NE566
Power pulse circuit
Power pulse circuit by LM350 and NE555
Mini organ circuit.
Mini organ based on NE555.
Light Detector
Light Detector with NE555
Dark Detector
Dark Detector with NE555
3-state sound generator
3-state sound generator with LM556 (dual LM555)
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