[sdiy] outlet as variac? calling all EEs...

harry harrybissell at prodigy.net
Tue Feb 20 05:19:14 CET 2001


Agreed: The Variac should be used to run the amp up... and check for
big problems that draw too much current.  If you run a long time life
can suffer !  If you do this to get distortion, etc... beware.

H^) harry

Paul Perry wrote:

> At 01:53 PM 19/02/01 -0800, you wrote:
>
> >what's wrong with the logic on this one?  it can't be that easy...
> >
> If you look at the plug output on a scope, it will show a VERY funny waveform
> (a sinewave hacked to bits). So you might get some pretty strange noise
> intothe amp.
> But in any case, can it be a good thing to run ANY electronics at a voltage
> other
> than the designed voltage? ANYTHING could happen with biassing.
> I wouldn't dream of putting a variac on an amp,except for a minute or so.
>
> paul perry Melbourne Australia
> (wehoops just noticed I'm not an EE! but it's what this liberal arts grad
> does for a living.. I hate burgers!)




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