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DIY LED Tester

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Hello. I made this tester, but the output voltage was (slightly lower). Replacing the inductor did not work. What's the matter, can you tell me .....
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If you meant the device by the link given above, then either the transistor is faulty, or for some reason the generator does not work, or an installation error.
+2
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Do you mean this device? LED TESTER. DIY LED Tester
There are thousands of articles on the site, how can people understand what you are talking about if you do not provide a link to the article?
Author 0
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The device for checking LEDs with your own hands. Thanks.
+2
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everyone can jerk - but tell me weakly
You need to be offended only by yourself! Learn to ask the right question first!
Hello. Made this tester
By whom, to whom, when, why, given, and which one?
Author 0
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everyone can scuffle - but tell me weakly ....... thanks.
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You weren’t here, but clairvoyants had to be addressed.

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