Explorer for all ranges (T1098E)

This circuit was found in a Radio Craft from October 1946. Power supply not shown, and tubes are 1.5V filament types.

Unijunction Triac Control (CB25861E)
This power control circuit was found in an article in the June 1995 Electronis Now magazine. The...
Light operated switch (CB8251E)
This circuit was obtained in a 80s RCA documentation. The circuit uses components from that time....
Relative Value Comparator (CB19483E)
This circuit compares the input voltages by providing an output according to the curve next to the...