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    Paper shredder tarnader 2050 ec

    Board looks like it has been hot around the 7812....can you show underside of the main board? Looks like someone has been scratching at the soot on top. Bad contact may be enough to get a small relay to start but extra it load drops out.
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    space heater controller repair help

    Only one thing can do that and that's a stuck relay.
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    Electric motor on planer quits running after 1 minute

    I doubt it....op said it trips the o/l frequently after less than 1 minute on load. Op does not seem to want to supply detail I asked for so can't do much more. As it was ok when it was stored, and it's a open frame, hornets probably been in and built a mud nest in amongst the cent. sw.
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    Acer Aspire 4738 laptop intermittent shut off

    Intermittent problems are the most difficult to track down especially when the unit is in front of you only. Ever more again when it is a laptop. Blue screen sure sounds like software to me. Might be a good time for a trade-in....should be a lot of bargains around in the near future.
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    Electric motor on planer quits running after 1 minute

    Possibly but I doubt it. It is not difficult to determine if the switch is working ( mechanically) or not. There is a definite click which can be heard as the motor increases to around 2/3 full speed at startup and again at around 1/4 speed or lower when shut down. All this is an assumption...
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    Please help in identifying this (possibly) tiny JST connector

    https://inhelume.com/products/sh-1-0-mini-micro-jst-connector-2-3-4-5-6-pin-leads-100mm-28-awg-wire-pcb-header
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    Why is this Happening to Me?

    From previous posts I assumed the latter.
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    MOSFET drive circuit

    Tr1 doesn't look right being connected directly across the AC. Didn't look any further.
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    led lamp failed adapter

    You should avoid playing with non isolated supplies as your schematic shows. There is a constant danger of mains supply appearing on the output. Circuit diagram does not appear to relate to your board. Chip likely, circuit no. Is this part of a totally enclosed LED bulb...??? If so, comment at...
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    Please help in identifying this (possibly) tiny JST connector

    I usually try to buy them with the lead already connected. Very very fiddley to get the connection satisfactory otherwise. https://www.ebay.com.au/itm/5-Sets-Mini-Micro-JST-XH-2-5-2-Pin-Connector-plug-with-Wires-Cables-11cm/133392845885?hash=item1f0ed54c3d:g:hKwAAOSwnfRb~Tqr
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    Blow fuse

    Yes but it's not common to do so. If you use the series lamp as duke37 suggested, it will allow you to do some investigation without the fuse blowing. One I use here has an incandescent 100w flood lamp but just about any incandescent lamp will suffice. Method requires good knowledge of the...
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    Electric motor on planer quits running after 1 minute

    The pulley is normally on the opposite end of the motor to the switch and normally does not have to be removed. However......... I've seen many pulleys destroyed by using pullers such as M shows if the tangs cannot get right in near the shaft at the rear side of the pulley. People tend to wrap...
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    A Question About PWM Controllers

    PWM retains the torque at low settings.
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    Why is this Happening to Me?

    Probably not good practice to refer to LED's as L1 etc. Better to use either Led1 or maybe even D1....L usually refers to inductors.
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    Electric motor on planer quits running after 1 minute

    As Minder says, and depending on the motor type, it could be the centrifugal start switch sticking. It's a mechanical device so follows your saying it was ok but not now after 10 years. This switch connects the start winding during startup and if it stays in circuit for too long (normal switch...
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    Timer 555 voltage

    You could use the one battery and a buck converter but you still have not said why you need the high voltage.
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    Why is this Happening to Me?

    Nothing wrong with copying already established circuits or code etc. just as long as you understand there is a lot of garbage out there. Being able to differentiate is the thing.
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    Why is this Happening to Me?

    My grandfather used to say measure twice cut once.Same applies here.
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    Battery charger low output

    Really depends on what you refer to as a dead battery. Don't know of any charger that will work on a completely dead battery or even one below recovery specs.
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    Detecting horizontal position

    Take my hat off to you for being able to understand anything of what they say in so-called English. Telemarketers never make any sense.
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