Basic Latch (CB7981E)

This circuit can be applied to several logics. The circuit is from an Electronics Now from the 90s, using two push-buttons.

High Q Notch Band Filter CB15474E (CB15474E)
A narrow range of frequencies around 1 kHz is rejected by the high Q filter shown in the figure,...
6 V to 12 V Converter (CB13921E)
This simple converter does not use a transformer and the transistor can be the BD135 for currents up...
Transistor Signal Tracer (CIR22511E)
This is a circuit from the time when some still called the transistor a crystal triode. It...