Audio amplifier 741 (CB20478E)

This low power audio amplifier was found at 1992s Popular Electronics. Transistors are general purpose common types.

Linear Ramp Generator (CB5929E)
This circuit appears elsewhere on this site. This is from an American 80's circuit manual....
Light Switch 741 (CB25868E)
This simple power supply circuit triggers when the light on the LDR reaches the level set on the...
Sequential with triac (CB7200E)
This sequential circuit appears in other versions on this site. This is from American...