[ARC5] UPS Transformers

[Jim Falls]

Drifting a bit, but can anyone recommend a good modified or true sine wave inverter? Or, is there a site you can point me at?

Put a "good " one on the scope at a going of business electronics remainderer sale (long time friendly sales rep was pissed he was getting the boot) : modified sine wave was +o-o+o-

Garbage all over the bands using a service monitor. He pitched it in the e-waste bin. 

Cheers!
Jim K6FWT

> On Nov 19, 2015, at 09:41, Kenneth G. Gordon <kgordon2006 at frontier.com> wrote:
> 
> Well, in my case, some time ago, I found, on the loading-dock of the local 
> university's Electrical Engineering Dept, ready to be scrapped, a 
> dual-115VAC output, pure-sine wave, at 20 amps, UPS with control panel.
> 
> Needless to say, I grabbed them as fast as I could carry their over 100 
> pound weight each.
> 
> They take 48 VDC input.
> 
> I have gathered a short "rack", with heavy-duty casters under it, in which to 
> mount them, with their batteries.
> 
> The manual, which is still available, costs $75.00. I've got that on the way 
> too.
> 
> I can hardly wait to get it in operation.
> 
> Ken W7EKB
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