I wanted a 12V test lamp while working on a car so I combined an LED and a resister off a scrap cct board, an old ballpoint pen tube, an old faulty multimeter probe, plus a crocodile clip and some wire from the junk box. I then used some solder, glue and heatshrink sleeving to put it all together. The photo shows the test lamp connected to the 12V output of a power supply. I expect this will also be used in working on electronics on the bench. February 2017.
See note.
I wanted a 12V test lamp while working on a car so I combined an LED and a resister off a scrap cct board, an old ballpoint pen tube, an old faulty multimeter probe, plus a crocodile clip and some wire from the junk box. I then used some solder, glue and heatshrink sleeving to put it all together. The photo shows the test lamp connected to the 12V output of a power supply. I expect this will also be used in working on electronics on the bench. February 2017.
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