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  1. B

    High power, low capacity UPS circuit

    Use a ups that is always supplying ac and run charger on the battery.
  2. B

    How would you diagnose a cordless keyboard?

    Has been since cells were first though of....
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    Wired power for battery tools

    Caps smooth voltage...inductors smooth current.
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    Custom Sound Detection

    Almost impossible to detect a particular sound.
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    Tachometer

    http://talkingelectronics.com/projects/50%20-%20555%20Circuits/50%20-%20555%20Circuits.html?iframe=true&width=100%&height=100%
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    USB not recognized for pic18F14K50

    Sounds like you need drivers fot the pickit.
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    Bypassing IR sensor/detector in Fisher Paykel DD24 dishwasher

    More than likely a safety switch put there for a good reason.
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    DC motor hookup for reuse ( recycle)

    Look like brushless ac motors to me.....
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    Gas Gauge Sending Unit question

    You have been asked several times for more information which never comes so not possible to assist any further as far as I can see.
  10. B

    dvd's and cd's as capacitor plates

    How things change...used to be a potato...or a can of beer.:)
  11. B

    TSOP56 Flash which is being bit banged using PIO

    https://www.xinga.com/xg/product.php?productid=17679
  12. B

    dvd's and cd's as capacitor plates

    Hehehehe...yep. Not only that but I have a sneaking suspicion the Op is not thinking of how to get it in there in the first place. I swear by the solar panels I installed here 5 years ago BUT at a cost. My costs have been recovered in that time but government will need to wait quite a while to...
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    dvd's and cd's as capacitor plates

    Not...... :)
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    Gas Gauge Sending Unit question

    Nothing in the "pamphlet" refers to any wiring or voltage specs. One appears to be for a fuel pump. These setups are essentially ammeters and one has to know the meter specs as well as the sender and the applied voltage specs to make any sense of it. Apparently some installation instructions...
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    Gas Gauge Sending Unit question

    Gauges must be provided with a regulated supply otherwise they do not work as they are supposed to do. It may be that the gauge kit has an internal regulator but how are we to know as you have still not provided any info in that regard. Well, yes there is if they don't match. Once again...
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    Gas Gauge Sending Unit question

    Show details on everything otherwise it's just a stab in the dark that will go on forever. For example, is the gauge a match to the sender unit? Is the circuit fed via a regulated supply and if so, at what voltage? Does this voltage match the gauge and sender unit?
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    Can You Identify This?

    As Martin says, if they were dodgy you wouldn't be able to read anything on the casing.
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    Pcb power supply diagnose

    So it's an inverter, not a mains powered supply..?? More details...where is it from? brand? model no.? what is it's problem?
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    Any idea why this PA on switch is tripping my fusebox?

    If it's the earth leakage section causing the trip you need a test for insulation resistance possibly on the transformer. I doubt such a small transformer would create a current inrush problem on the actual circuit breaker section of the earth leakage. I have had isolation transformers on...
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    Any idea why this PA on switch is tripping my fusebox?

    You need to be more specific when you say "tripping your fusebox". It might mean blowing a wire fuse, tripping an overload circuit breaker or tripping an earth leakage device. Doubtful the switch is at fault unless the rear is conducting to ground, no way we can know as you have it there with...
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