This is the power step of the previous circuit. Output transistors must be mounted on good heat sinks. The circuit is from documentation from the 60s.
This decorative circuit was found in the July 1994 issue of Electronics Now magazine. It makes LEDs...
We find this circuit in an American publication of 1978. It is intended only for cars that have...
The circuit shown uses the 741 operational amplifier, but lower noise and higher gain equivalents...