LM3914 with expanded scale (CB24652E)

This LED bar graph circuit was found in the October 1980 issue of Radio Electronics magazine. The circuit shows how to change the LED drive values.

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DC to DC SMPS (CB9669E)
This circuit was found in an American documentation from the 80's. The components are from that...
Optical Power Modulator (CB14676E)
The circuit shown is from the Texas Instruments optoelectronics manual. It is intended for audio...
LED drive I (CB18890E)
This circuit drive an LED with constant current determined by the values of the resistors of 10...