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  1. B

    I need a 350V, 1A PSU

    Look here for example......... https://www.aliexpress.com/item/1005006225137997.html I'd imagine plenty of others around also. Drawback currently the 110v input is out of stock but that again depends on where you are.
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    I need a 350V, 1A PSU

    Seems to me 800 is wayyyyyy over the top also.............
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    Apple Watch 40mm SE model - back Glass Replacement

    One would naturally have to wonder how the "back" of the watch was broken. Methinks some porkies here.........
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    I need a 350V, 1A PSU

    Depends on your country and your mains supply voltage. If you use a 1:1 240v ac transformer and rectify and smooth the output , it will get you to around 340V DC. Or say a 240-12 and then reverse with another 12-240 it should be around the same. Do NOT try connection direct to mains as the...
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    Connecting copper and iron wires

    Possibly, but the 4.5v will.
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    Connecting copper and iron wires

    Clean the iron wire with a file so it is shining bright, wrap copper wire around the iron, a few drops of "Bakers Soldering fluid" and solder the connection with a large soldering iron and 60/40 tin/lead solder. It will be immediately obvious by the smooth solder finish if you have done it...
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    Rice cooker tripping breaker when switched on (Zojirushi NP-HCC10)

    Resistance means didley squat...........one needs to measure inductive reactance combined with dc resistance and capacitive reactance to arrive at AC impedance. Advice would be forget your current direction and concentrate on looking for shorts as defined by the series lamp.
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    Touch pad not behaving!!

    Just face the fact..........as in #2 Either that or rub it with a magic mushroom.
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    Ultrasonic Welder for thin LDPE? Or maker space that has an ultrasonic welder?

    Your requirements outlined are specific to specialised equipment, not only the welder but the mechanism to hold the workpiece and move to required locations. Suggest you contact a manufacturer. ...or use a "really good" o'ring and compression sleeve.
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    Touch pad not behaving!!

    These things are not made to be repaired so I'm certain if you think you'll get it fixed by "sending it away" you will be disappointed. Once upon a time (fifty years ago) items like this were made with discrete components but this is no longer done, usually just the one internal chip. Buy a new...
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    Rice cooker tripping breaker when switched on (Zojirushi NP-HCC10)

    You will be measuring dc resistance with a standard multimeter, not impedance. Series lamp when used will give indication of any remaining short.
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    Rice cooker tripping breaker when switched on (Zojirushi NP-HCC10)

    That is what the lamp is supposed to do(along with saving your new bridge rectifier and possibly other components) ...If you still have an fault somewhere else in the circuit.
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    LED dimmer help

    Good luck with that..... Best approach would be to look for theatre lighting, the controls and the matching LEDs.
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    Rice cooker error E06 (Zojirushi NP-HCC10)

    A transformer will do nothing to stabilize the supply mains.
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    Attiny1606 burning out when controlling a drv8251

    Supply voltage........ 4.5-V to 48-V operating supply voltage range ........ second line down in features https://www.ti.com/lit/ds/symlink/drv8251.pdf
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    Attiny1606 burning out when controlling a drv8251

    According to the specs you still have insufficient voltage level for the DRV8251.
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    predator 9500 inverter voltage output measurement

    ...............Thought they weaned you off whatever it was you were taking....:eek:
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    Drier Startup Issue

    It's the inverter itself with it's design "restrictions" that become the problem trying to start motors. As the Op quoted, it may well be a 3200w rating while fine for resistive load (if the rating can be believed initially) but that means didly squat when trying to start a motor at 4 to 6 times...
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    Looking for TX-RX @ 433MHz

    Goto # 3. Being more specific, as it seems a blood out of a stone situation, do you need it say to drive servos or speed controllers or perhaps just n/o or n/c relays? I understand there is a uC that can read serial data but what do you intend to do with it once you presumably know how to...
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    Drier Startup Issue

    As quoted in another post today, motors draw 4 to 6 times full load current at startup. You will not modify anything to avoid that. Seems more than your "small generator" can handle.
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