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    Marshall Micro Bass Amp - Electric shock???

    Yes, the supply authority. In many countries it is, as I say, mandatory (that is, it is the law) that incidents such as this are reported immediately and the proper inspections and outcomes applied. Simply testing from a contractor is normally insufficient as there has already been a reportable...
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    Need help with SMPS voltage output high

    When measuring the voltages for the 12pos/neg you must use the correct ground. Refer to your own supplied schematic.
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    Marshall Micro Bass Amp - Electric shock???

    Any incident like this should be reported to the relevant supply authority inspectors for investagation, not thrown out for discussion on an electronics forum. Many countries it is mandatory requirement of workplace health and safety.
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    Transfering video using light

    Been done for millenia........any movie theatre or drive-in.
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    Are There 3 Volt MultiMeters?

    Yes, we used to be issued with them for underground use in coal mine. https://www.ebay.com.au/itm/334223279845 https://www.aliexpress.com/item/1005004510622807.html
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    Is it possible to use LM2596 buck converter to a 24V dc battery and connect it to a 12Vdc/220Vac inverter to supply raspberry pi 4B?

    Yes, I did get that. Thing is it's like trying to go to the North pole via Antarctica.
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    Is it possible to use LM2596 buck converter to a 24V dc battery and connect it to a 12Vdc/220Vac inverter to supply raspberry pi 4B?

    Maybe simply use a 5v dc supply....... DOHHHH!!!!!
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    Bias_T and inductor resistance

    Get yourself a $20 component tester...... https://www.ebay.com.au/itm/173534514262
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    ccfl lcd laptop repair help, pics attached

    New laptop.........
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    Dishwasher board burned

    No......
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    Constant current circuit

    Goto #2 and read again.
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    Pyle Pro PTA1400

    Given this, I'd tend to check the volume control and surrounding area.
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    How to use DC power supply to power AC powered appliances?

    Comments like this simply show your absolute lack of knowledge.
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    Help with FM radio problem.

    Give the selector switch a good squirt of crc.
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    How to make a spark gap with a diode (almost)

    Take up golf........or lawn bowls Or something that requires a void between the ears.
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    Can't set amperage on 400w 15A DC-DC step up boost converter 10-60 volts

    I suspect your input voltage is not high enough............not all be-all-end-all when they say 8.5 to 50v in for 10-60v out. Try higher input and see what happens. As a pre-requesit, play around with some of the smaller boost converters at lower voltage requirements and see what the outcome is...
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    Hoping to ID this connector for LED array power supply

    Could be any combination.....connect as per original.
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    Hoping to ID this connector for LED array power supply

    That was for FS-i6 trainer lead....your application will be different.
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    Hoping to ID this connector for LED array power supply

    Depends on the application but all the above carry some form of 5v signal at least. I'd imagine the plug would be good for an amp or so.
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    Hoping to ID this connector for LED array power supply

    Sure is...........
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