Category: check circuit
simple led Indicator high-low voltage by 2N2222
| April 20, 2010 | Posted by admin under check circuit, led display, meter |
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This circuit will show show position format high or low in the format is simple. At use a few equipment can induce the equipment has checked that have small-sized. The work of the circuit be while have no input LED2 stick bright stay all the time. Because will have the trend flows through LED1 go…
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