nº961

 

1 led voltmeter(0-10V). The number of led flashes is the same as the number of  volts present at circuit input. After counting cycle the led turns off longer and the counting cycle is restarted; supply 12V.

nº960

 

White led luminous intensity controlled by single tact-switch. Up/Down loop variation discrete or continuous. Uses only one LM324 Quad opamp integrated circuit, supply 5V.

nº959

 

Simple RC low pass filter for measuring stand-by DC current consumption of devices having pulsed currents. Time constant adjustable from 0.6s to 30s.