Hi Ray

How many watt do you need?

Jay

> On Oct 22, 2020, at 4:42 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
> 
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