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The Compact Flourescent Light or more commonly a CFL. For some time I have been popping open the ones that go bad and salvaging the board components.     This one stopped making light but I could see that the small filament heaters at the two ends of the tube were still working. I opened it up by putting a screw driver in the seam of the plastic base and twisting. If you try this be sure to use some good leather gloves. If you do not at some point the driver will slip and you will s ...
jw0752

Sticky Analog Voltmeter

Posted by jw0752 Top Member Dec 18, 2016
I happened to notice the other day that an analog voltmeter that I built a couple years ago was reading 10 volts. Now this alone would not have been of any concern except for the fact that the power supply was not turned on nor had it been turned on for several days. I went over and tapped the meter and it dutifully dropped back to zero. Years ago when I did service work for Radio Shack it was common to have the little analog multimeters come in for repair with stuck meter movements. I would tak ...
By now everyone knows that my Mom is my greatest inspiration. As she continues to degenerate with Parkinson's Disease I continue to try to come up with technology to make her daily activities easier. For some time now she has been fighting with the tube of Analgesic Pain Cream that she uses to ease the pain in her muscles and joints. In the good old days the tubes of cream came in a metal tube. As one squeezed and collapsed the tube it stayed that way. The tube could be slowly rolled up from the ...