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'Sup /diy/. About a month ago my central vac died. After taking it all apart, I couldn't find anything wrong, so I put power directly on the motor. It worked, so I figured with a relay I could bypass all the original massive circuit boards and just have a 12v line trigger a relay to turn the motor on.
My problem is that this motor is massive and would present a huge inductive load on the circuit. Just to be safe, I'll assume 15A at 120V. At present, I just have it on a plug that I plug in when I need it and unplug when I'm done. But this is clumsy and annoying, and I get that arc every time I do it. What can I do to make this vacuum turn on with a relay at a reasonable price? I don't mind soldering or wiring at all, but I don't even know where to start on a circuit or proper relay. Every relay with HP ratings or inductive ratings high enough I can find is $80 minimum.
Any advice on motors and relays would be greatly appreciated. Or perhaps where to buy a suitable relay at a suitable price. (Hard mode: Canadafag here) Thanks /diy/.
/ohm/ - Electronics General
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old thread >>961059
Links for beginners, what to solder, what multimeter is gud, what books, how to prevent caps from exploding, what circuit sims, Kerchov laws, Kasparov vs Karpov, here:
What the hell can I make from this?
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So, I found myself in possession of at least 400, maybe 500 shellac records.
Since these things are stupidly busted up, and I'm not exactly sentimental, I wanted to try my hand at fashioning something with the material, but I have no real idea how it works.
I'm pretty sure melting them is a bad idea from a health perspective (can they even be melted, or do they burn?), but can I stretch this stuff out so I can paint on it?
Really don't have a damn clue what I'm doing here, and would prefer not killing myself, to be honest.