Vairiable PS/ Hotwire

[MichaelBikel]

Anyone know anything about Variable power supplies? I have never had one and I feel like it would serve me well. It could be useful for electrolysis or a hot wire foam cutter (both things I would/plan on using soon).

This one is the one I picked at 0-30V and 0-5A, the cheaper ones either only do 3Amps or the amperage is preselected but the V are variable.

http://www.ebay.com/itm/321954951099?_trksid=p2055119.m1438.l2649&ssPageName=STRK:MEBIDX:IT

 

[pcmeiners]

Purchased a used Sorenson lab power supply on Ebay 0-25v, 0-15 amp for $35 plus shipping few years back. 5 amp is not a lot of power. You are better off buying used

 

[gungatim]

I've got a couple regulated DC power supplies, both are pretty low power, 0-10 amps and 0-1000 milli-amps both are either current or voltage limiting. one has a dedicated 12v and 5v out along with the variable output. I pretty much use them for small portable radio power supplies and charging ni-cads that don't have a charger...they're not cheap, but I got mine for $40 for the pair from an auction. I think retail is >$100, which is why a lot of folks just use a battery charger...they are handy though if you do a lot of electronic repair like I do...

 

[theoldwizard1]

Anyone know anything about Variable power supplies? I have never had one and I feel like it would serve me well. It could be useful for electrolysis or a hot wire foam cutter (both things I would/plan on using soon).

I think you are going to need a lot more amps than that. At least 10A ???