LM3900 Rectangular Oscillator (CB25179E)

This 1 kHz oscillator uses a Norton LM3900 operating system. The frequency depends on C1 and R1 and can be changed.

Microcontroller controlled dimmer (CB25087E)
This circuit was found in a Radio Electronics magazine from October 1987. It can be used as a...
Sine Oscillator (CB4926E)
This setting appears elsewhere on this site. This was obtained from an 80's Circuit Encyclopedia and...
Single supply thermometer (CB9361E)
This circuit was found in an Electronic Design from the 90s. The circuit uses a type J...