5V to 12V x 50mA Converter (CB26060E)

This circuit with the DCP010512 was found in the August 1998 issue of Electronics Now. The integrated circuit is not very common these days.

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High Gain Amplifier with 2 Transistors (CB25640E)
This circuit was found in the November 1993 issue of Electronics Now magazine. It uses...
36 LED sequential (CB7585E)
This circuit was found in a Popular Electronics from the 90s. The effect circuit uses components...
Triac Crowbar protection (CB15496E)
In the circuit shown in the figure, when the input voltage rises to 27 V, the TL431 triggers the...