The circuit shown has a maximum output current of 1.5 A. We find this traditional configuration in the Linear Applications Handbook by National Semiconductor. R1 must be wire.
This circuit uses a Hall device from that time as a sensor. The circuit is from an English...
Found in Radio Electronics from the 90s, this siren finds many variations on this site. The...
This audio generator that produces both rectangular and sinusoidal signals was found in a...