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.

Shield for triac activation (CB7833E)
Found in Radio Electronics this circuit uses a fotodiac to drive a triac. The circuit can use...
Intelligent High Side Current Sensor (CB5248E)
Based on components from Linear Technology, we find this circuit in a 2005 manual. The circuit...
Triangular signal generator (CB7596E)
Found in Popular Electronics from the 90s, this generator uses integrated circuits from that time....