[RE-wrenches] Sound Equipment Inverter
Christopher Warfel
cwarfel at entech-engineering.com
Fri Oct 23 08:41:04 EDT 2020
Ray, we use Samlex on our oyster farm. We have a 24 Volt system which
powers pumps and an oyster sorter. The sorter takes 240 and transforms
to 208. We have not had any issues except that we sometimes have to
turn off the inverter and then back on to energize. The GFI is also a
little cranky on these but that could be because of the conditions we
are working in. Chris
On 10/22/2020 6:42 PM, Ray wrote:
> Hi All;
>
> I've just had an inquiry on building a portable sound stage and
> recording setup. Traditionally we've always used Exeltech, as they've
> had the cleanest output, with background buzz on tube amps being lower
> than grid power. Modsine were horrible, Old Trace SWs were pretty
> intolerable, Magnum's were usable, but still noticeably more buzz than
> grid. I think THD is roughly associated with the background buzz, but
> there might be certain harmonics that are particularly problematic. I
> haven't gotten into looking at the separate harmonics relative to what
> induces the most noise in these old vacuum tube circuits.
>
> This is a 48 v application that also needs a built in charger with
> transfer switching. Exeltech does not appear to have anything in that
> department. Any other choices? How are Samlex?
>
> As always, thanks in advance for your time and expertise,
>
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