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Join Date: Feb 2005
Location: Mexico
Posts: 1,961
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LED Test Light
I found in a Bentley manual how to build a LED test light that is safe to use in electronic circuits.
The only drawback is that it is polarized, meaning if you connect it wrong it will not light. that is why I used a red wire for the positive voltage. ![]() ![]() ![]() With a needle tip ![]() |
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Which section of the Bentley is this located ?
THANKS! Doyle
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Recording Engineer, Administrator and Entrepeneur Designer of Fine Studios, Tube Amplifier Guru 1989 Porsche 911 Carrera Coupe 25th Anniversary Special Edition Middle Georgia |
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one of gods prototypes
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i've made many of those.......a little trick is to fit it into a pen with the led at the top and a pointy probe out the tip
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Doyle
It is in the GTI Golf Bentley manual, not in the Porsche manual. |
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Join Date: Nov 2005
Location: CA
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why not just use a multimeter?
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Fat butt 911, 1987 |
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one of gods prototypes
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i have a fluke 87 and one of these.......
Amazon.com: Power Probe III Ultimate 12 to 24 Volt Automotive Electrical Circuit Tester Kit: Automotive best electrical tool i've ever used for troubleshooting......
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The nice thing about an LED over a VOM is you can see the pulses..it is very clear if you have an issue.
Speed or reference sensor..fuel injector...no doubt if in five or ten seconds of cranking the engine over if the pulses are irregular, missing or weak. |
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