[BC] Cyberpower brand UPS

[Broadcast List USER]

That's fine, except that the filament transformer can add a lot of  
distortion, under some conditions.

120 VAC really isn't that large of an audio level.  Work it out.  I'll  
bet that if you remove the transformer (especially if it is  
magnetized), the distortion will be much lower.

--chip

On Jun 26, 2009, at 1:00 PM, broadcast-request at radiolists.net wrote:

> Message: 4
> From: "Gary Peterson" <kzerocx at rap.midco.net>
>
> [...]
>
> BTW, I am a chicken.  I wouldn't have the guts to plug the input of a
> distortion analyzer or oscilloscope directly into and AC outlet.  
> That's why
> I used a filament transformer.  And, while I think of it, I have found
> outlets, that were wired by licensed electricians, with the hot and  
> neutral
> swapped.
>
> Gary, K?CX
>
> " Check it out for yourself.  The power company provides power at
> generally under 1% THD, and always under 3%.  It isn't that the power
> company is generating this distortion, but power supplies hung on the
> line are doing it.
> --chip "