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  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Recent content by b.james

  1. B

    Plasma Cutter Starter

    What voltage regulator do you refer to ? Clearly you didn't get an answer . Do you know anything about the CUT50 ?
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    Plasma Cutter Starter

    OK thanks . There is a lot more to go on there .I bought a new unit cause I had to have one working . Better to buy cheap and replace when broken than buy one at 10 times the price with most of it made in china anyway. Swapped the output unit complete and still no change. Its in the unit so...
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    Plasma Cutter Starter

    Well here I am in January 2018 with that machine still sitting on my bench and that starter circuit still not working . Been right over it and can find nothing wrong but despite sparks at the contact air gap no spark gets to the torch end. If I touch the open end of the torch without tip to...
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    Plasma Cutter Starter

    Thanks Max I can at least work with that and check/change a capacitor or two . Not sure any of the other is helpful as I don't have the circuit. Perhaps you could break that down a bit . So what do you think is happening? What should this simple circuit look like please?
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    Plasma Cutter Starter

    Hu Hu so why would it fire up the first time OK and cut then refuse to start a second time until something cools then fire up again normally . What might the component be that causes that? I have watched the spark arc at those times and it is always there.
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    Plasma Cutter Starter

    I have a Cut50 cheap chinese plasma cutter .Mostly it works fine but lately the starter fails to ignite it . This happens on say the second start of cut and I leave it for 30 secs or so and it starts again then won't on the next one . I have checked ,adjusted and played with the contact set...
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    Plasma Cutter with pictures

    Figgered you would have to have a last say
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    Plasma Cutter with pictures

    I find it just painful that someone, who has done nothing to help whatever , except post for the hang of it and cloudyies the water with his footprints then claims to have known all about the issue, all along.... after it is fixed note . Just plain stupid, time wasting posting and it drives...
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    Plasma Cutter with pictures

    No sweat spec . Some of us prefer not to put a location in . There is enough of that going on in google and the states without giving them free advice . I guess you don't give your right name either huh?I see you ask " Is anything true? I'd venture "Hope not on the internet for safety's sake"...
  10. B

    Plasma Cutter with pictures

    Actually the guy who is doing the chinese one is a fool and I suggest you watch it cause its not the way to do about fixing anything nor instructing anyone . Ripon Yorkshire
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    Plasma Cutter with pictures

    All very good information . Thank you very much Spec. The one titled Chinese is rubbish , you might remove that The one titled Troubleshooting Lotus is brilliant and will definitely help me The one titled How it works (teardown) is pretty well twice the size and pretty laborious to listen to...
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    Plasma Cutter with pictures

    Not understanding what goes on I express it as I see it .As I said when cold I pull the trigger and a small sparking takes place for just a second . Nothing starts , I let go the trigger and try again . This time and every other time thereafter no sparking whatever . Does this fit the situation...
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    Plasma Cutter with pictures

    It would seem to be the ignitor circuit that is not working . What would I look for to identify where the ignitor circuit is please
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    Plasma Cutter with pictures

    I have one of these cheapies named Bellcarroll Cut 40 . It has an automatic start mechanism which has failed and I wondered if anyone knew where I might start looking . Its got a few boards on it When cold and first switched on a small starter spark appears when touched to ground for half a...
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    Refridgerator/Freezer Starter

    Bump up
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