3 digit mini Green LED 100v voltmeter

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greenband-it
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Joined: Sun Sep 04, 2011 10:50 pm
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3 digit mini Green LED 100v voltmeter

Post by greenband-it »

I have used several of these meters now and two of them have developed problems.

I am measuring a 12v battery, and using an LM78L05 regulator for the power input on the red and black wires.

One meter now has a missing digit, and another meter only has a decimal point. When power is first turned on the digits flash on, but them they all disappear and only the decimal remains.

Both of these are the 100v meters.

I took pictures but do not see where to upload them to you.
:mrgreen:
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