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    Old aquarium thermostat.. How does it work?

    Ah yes, followed your instruction and can see now... Way it works is the neon light gets it's path through the heater element when the heater is off and therefore neon is on. When the sensor switches the heater on, the sensor shorts the neon and hence it ( the neon) goes off. The neon draws very...
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    problem with the table saw motor. Please help!

    Originally you said you used was 80, which , if same diameter, would be a finer blade and no problem normally. It's a series motor so no cap as #15 quoted. Still think you've cooked it ( burnt out field or armature or both).
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    problem with the table saw motor. Please help!

    I'd tend to go with "cooked the guts out of it" given the "alternative blade" explanation. Sort of assuming here that 80 tooth blade is larger diameter blade.
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    Low power cutoff not working

    Guessing you should be using a logic level mosfet.
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    Old aquarium thermostat.. How does it work?

    Photos too blurry to make out any detail.
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    Simplest mosfet circuit with ghosts....

    Best to draw out the circuit and go from there.
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    Simplest mosfet circuit with ghosts....

    Thyristor not mosfet
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    a adapter from a candlestick light switch to a 2 gang/channel light switch. (More info in description)

    English instruction diagram 3 clearly states " light fixture wiring diagram".......hat off to all those that can interpret chinglish.....under your view, I cannot see where the wireless component would come in given it,s ( according to you) requiring hard wiring.
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    Can this ceiling fan remote be fixed?

    These things are never made to be repaired. They cost cents to produce, are often multi layered and use lead free solder which is a right pain to modify. Chuck it and buy a new one, that was the manufacturers original design consideration for certain.
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    a adapter from a candlestick light switch to a 2 gang/channel light switch. (More info in description)

    After looking at the detail in the pdf provided, I pretty much stand by what I originally said. It is a very iffy description but from the English version it says the wifi relay is in the light fixture. Doesn,t appear to be any mention of the switch unit unless that first device is meant to be...
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    a adapter from a candlestick light switch to a 2 gang/channel light switch. (More info in description)

    Datasheet...what data sheet??
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    8 and 6 ohm speakers

    I think any project involving 1950 era speakers will end in a definite level of crackling, distortion and eventually a great puff of smoke.....especially with 400w peak at the source,..
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    a adapter from a candlestick light switch to a 2 gang/channel light switch. (More info in description)

    Are you sure...?? Not much point in it being a wireless device if you have to hard wire....or is the switch itself operated by a remote control....very little info to go by is always a poor posting.
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    8 and 6 ohm speakers

    As already pointed out, even with the rest of this so-called project a dud ended futile arrangement, no point measuring dc resistance as speaker coils are rated at their ac resistance which is commonly known as " impedance". Might be advisable to be careful how you use that as well.
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    a adapter from a candlestick light switch to a 2 gang/channel light switch. (More info in description)

    I would imagine as this appears to be some kind of wireless device, that a relay would be added to the light fixture. If this is the case and the existing switch position only contains active and switchwire, the switchwire could be reconnected at the light fixture to the neutral. No requirement...
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    setting off a reed switch with a coreless coil

    Too many variables to determine your application from information you have not supplied. If it helps, I used a reed switch in a 1.2v glowplug circuit that drew approx. 2A when energised. The reed was activated by a series wind of 4 or 5 turns 24awg enamelled copper wire around the length of the...
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    8 and 6 ohm speakers

    Draw out what you have and how connected. Sounds like you are paralleling speakers willy nilly ...this will throw a spanner in the works. I,m surprised a 1950 speaker would still be operational let alone have any higher wattage capabilities.
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    Car Radio

    Static as in a ticking sound which increases in frequency as revs increase is due to ignition noise. Wirring noise like a siren, again increases as revs increase is alternator noise. Both would normally be suppressed with (you guessed it) suppressors or capacitors sized for each application...
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    RCA TV polarity question

    According to the pdf user manual, power supply is 12V 3A DC so any "universal adaptor " would need to be at least this rating. As you say, there is no indication as to which is positive and negative terminal. Most are positive centre.....BUT......one can never be absolutely certain of this and...
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    8 and 6 ohm speakers

    how and why...you said there was a setting for 6ohm, why not use that..?? Never seen 6 ohm before, usually 4 or 8 but then again, no surprises. As for 50w speakers on 480w amp, they'll blow if you crank it up, that's for sure. None I know of, nor any hardware for that matter. Begs the question...
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