Strobe (CB22221E)

This circuit uses a special 1950's RCA strobe tube. It can be built with equivalent components for the rest of the circuit.

Universal Motor Speed Control (CB14716E)
The circuit shown is from the GE semiconductor manual of 1977. In the table we have the values of the...
Dual power supply with full wave rectification (CB25956E)
This 1 A power supply uses the 78 series integrated circuits. We found it in the June 1990 issue of...
Full Comparator (CB6548E)
Applying an operational of the time, this circuit of an old documentation can be elaborated with modern...