This halogen light switch circuit works only for dc halogen lamps. Halogen lamps give a good light and have an excellent eficiency. In this halogen switch circuit we use a FET transistor because the ...
This LED DC voltage indicator circuit is a voltmeter, rather than simply a battery tester. As such it may measure voltages as low as 3V. It utilizes venerable LM741 operational amplifiers applied as ...
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