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    How to make a direct current diy space heater... with solar panels?

    Solar panel dc supply can be just as, if not more than, hazardous than mains supply. Appears from your post that you have very little regard for safety. So I doubt anyone who has experience with this will want to give you advice that you might take and fry either yourself, or worse some other...
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    motor speed controler issue

    Shouldn't run at all with the pot disconnected....sound like you've cooked something inside, more than likely , the output drivers.
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    Charging with the Imax B6 charger

    Lipo cells are commonly charged in series so your parallel combination will need to be changed, at least for charging. (page 1 of the manual) Yes, chargers are dc but the info I was after was whether it was a battery input to the charger or mains. There are 2 types. The latter has the capacity...
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    Adding hardwired auxiliary input to car radio amp

    Well, I guess, but that flys in the face of what you originally asked. As it stands, I guess it is a sound mixer of sorts. Biggest problem of course is the whole idea is in your head and we have no idea why you would need to do it. There may be better ways to attack the project but unless you...
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    Charging with the Imax B6 charger

    It pays in the long run to provide as much information as you have on hand, otherwise we are just taking pot shots as to where any problem may lie. The reason I asked for the details above follow this, and some were not supplied. If you want an educated answer, best to supply the required...
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    Adding hardwired auxiliary input to car radio amp

    That would be disasterous....
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    Adding hardwired auxiliary input to car radio amp

    That's pretty much how it is supposed to work. If you have a schematic on the particular radio it might be possible to "hack" but it could present all sorts of problems. Without it, you would be flying blind and any suggestions would be "generalised" at best. If you want to give it a hack bash...
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    Charging with the Imax B6 charger

    For a start, 6 x 18650 cells if in series would be approx 6 x 3.7v = 22.2v and that is nominal. Top end is more like 6 x 4.2v = 25.2v and low end @3v per cell would be 18v. If you have 2 banks of 3 each then the max would be 12.6v...nominal 11.1v ....and low end 9.0v. Is the charger a genuine...
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    Sharp Carousel II Microwave Convection Oven quits convection mode after 3 minutes

    Might pay to take a measurement of the new part just for your own records as thermistors are rarely ever that expensive. Perhaps it comes with gold leads...:):)
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    Sharp Carousel II Microwave Convection Oven quits convection mode after 3 minutes

    Normal room temp resistance can be as high as 10k and most ohm meters on standard scale will not measure that high.
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    Sharp Carousel II Microwave Convection Oven quits convection mode after 3 minutes

    Care to show us what you found and save us trying to find it..? What makes you think the thermistor is not working, other than via trouble shooting guide..? Did you test it in some way, and if so , how?
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    Solar charging 2400 mAh batteries - Part 2

    The angle of the cell with regard to your latitude would make next to zero difference. They are a 2 bob light so expect 2 bob performance.
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    Sharp Carousel II Microwave Convection Oven quits convection mode after 3 minutes

    Model..?? Timer settings..??
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    AVO "Two Panel" Valve Tester has arrived.

    You asked how to clean the switch contacts and I told you. If you want to ignore it or argue the point, fine, do it your own way. Why ask in the first place.
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    Sartorius vs Technomaniac - who will win ?

    Never heard that method of identification in electronics before. Doggy doodoo maybe but...........!!!!!
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    AVO "Two Panel" Valve Tester has arrived.

    In that case polish with Brasso....but that's not the point here. You were asking about cleaning the switch.
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    AVO "Two Panel" Valve Tester has arrived.

    Think you'll find those products or kero are actually used to polish bakelite. It's not like some plastics that might turn up their heels and melt.
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    AVO "Two Panel" Valve Tester has arrived.

    Most of these old units have open switches so I'd be inclined to stay away from any "stripping down" and simply give each a good dose of crc or wd40 or similar, work back and forth a couple of times and soak up the rubbish which drips out with an old rag. Any disassembly could be permanent.
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    Need some help finding direction for a new project

    A ball float similar to measurement of water with a pulley at the top and an indicator on the exterior would be a more practical approach.
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    Repairing an old amplifier, working out what is dead

    I usually find a simple signal injector useful in situations like this. Try starting multimeter measurements at the speakers and work your way back. Is it mono or stereo..? Any amp model or details?
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