LM3914 Single Powered Voltmeter (CB25456E)

This circuit is an improved version of the previous ones with the LM3914. We found it in the March 1992 issue of Radio Electronics magazine.

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10 LED Scale (CB9813E)
Found in a documentation from the 90's, this circuit uses only one integrated circuit. The...
Power Supply for Alarms (CB16777E)
This power supply originally created for the CB16776E project but can be used for any type of 12 V...
100 Hz Oscillator (CB20350E)
The original purpose of this circuit, which we find in old American documentation, is to modulate an...