[time-nuts] [volt-nuts] Safe power-up. was (Solartron 7075 ...)

Peter Gottlieb nerd at verizon.net
Tue Oct 11 07:31:51 EDT 2011


Hmmm.  99% of the time I just plug things in and see what happens.  That's what 
they were designed to do.  If something pops I fix it from there.  If a fuse 
keeps blowing I use the light bulb in series trick.

On older tube gear I do "softly" bring it up with the variable autotransformer 
(Variac, Powerstat), but that's only really because of the capacitors.

Just my 2 cents.  I do fix a lot of stuff, though, and don't like to waste time 
futzing when I don't have to.  Weak parts get replaced.  If they were likely to 
fail enough to do so when I just plug something in, they need replacing anyway.



On 10/11/2011 1:14 AM, David J Taylor wrote:
>> The proper use of the variact's output voltage has a learning curve, because 
>> equipment with switchers behave differently than things with linearly supplies
>>
>> ws
>
> Warren,
>
> It's likely "Variac" you mean, not "variact"
>
>  http://en.wikipedia.org/wiki/Variac#Variable_autotransformers
>
> Cheers,
> David




More information about the time-nuts mailing list