Wrenches I have built solar powered sound stages, power trailers for both music and drive in movies, l only use outback, never any complaints, some acts prefer over dirty grid power. I had sunpower positive grounded arrays, AC-DC Coupled arrays. I had a guy use SMA and had all kinds of issues, mainly operator error. We did a full trailer, green room and light bars, powered drop down doors, but it was a little big. Jerry
On Thu, Oct 22, 2020, 3:42 PM Ray <[email protected]> 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, > > -- > Ray Walters > Remote Solar > 303 505-8760 > > _______________________________________________ > List sponsored by Redwood Alliance > > List Address: [email protected] > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/[email protected]/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > >
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