Voltage Regulator (CB14119E)

We found this parallel regulator in a 1973 publication. Transistors admit equivalents and the output voltage can be modified by changing the zener.

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Direction Indicator (CB13966E)
The circuit shown serves as a direction indicator or arrow for bicycles, robots and other...
Reflex Test (CB16554E)
This circuit was found in an 1888 publication. However, since it uses common components, it can...
Common collector stage (CB9062E)
Featuring low output impedance and high input impedance, this configuration was found in a 1980s...