Help me build a power supply.

[Lectric102002]

Am I being too autistic, or was that sort of what I said?

Pretty much.

 

[remauto1187]

Oh, I can pee pretty far; all the way to the electric fence if I have to.

Oh so you are one of those that didnt learn the first time. Got it.

 

[Farmritch]

I hate to be the bearer of bad news but if you want 20-25 amps there is hardly anyway about getting around the weight of the variac for that rating.
If you find can find a multitap transformer it may be lighter but the Iron and copper will be needed to carry the current no matter what

 

[Mr Evilwrench]

Proportional to the load, yeah.

 

[atvdave]

I hate to be the bearer of bad news but if you want 20-25 amps there is hardly anyway about getting around the weight of the variac for that rating.
If you find can find a multitap transformer it may be lighter but the Iron and copper will be needed to carry the current no matter what

This is what I thought... but INGO is full of some great minds, just seeing if anyone had a work-around. 20 amps is a bit over-kill, I could go down to 10-15 amps. The longest the power supply will be on is about 6 seconds to test the anti-pump ckt.

 

[atvdave]

OK......

Who might have a old variac they want to get rid of? Looking for at least a 15 amp if anyone has one.


Thanks
Dave

 

[Scout]

I have one, not sure if it works, not sure if I want to let it go or not. I think I'll play with it a bit first

Micronta (Radio Shack) 5 amp.

 

[CathyInBlue]

I humbly submit:

Buy ATX breakout board bench power supply [POW06271M] | Seeedstudio

Just add commodity ATX powersupply.

 

[Scout]

My variac works. I plugged a light into it and had a really heavy dimmer. Right now I have no use for it.

 

[atvdave]

My variac works. I plugged a light into it and had a really heavy dimmer. Right now I have no use for it.

Thanks, but 5 amp's is way too small for what I need. 15 amp is the minimum, last week we were blowing a 10 amp ckt breaker at the place we were working at. About every 3rd or 4th test the switch would trip.