[sdiy] Newbie Power Supply Alert

[harry]

media at mail1.nai.net wrote:

> I'd be wary of NOS power supplies.  The electrolyctic caps in a linear
> supply are crucial components.  For all you know, they could have been
> sitting in warehouse with no HVAC, or a trailer in an abandoned freight
> yard, for the last 30 years.

I would not worry that much... these capacitors are run on fairly low
voltage
and usually hold up well, even if not powered for a long time. The days of
electrolytics failing at very high rates (with age) are pretty much 'long
gone'

I'd shoot those dice anytime. Now if you are thinking of an old Tube Guitar
Amp where the electrolytics are pushed to (and maybe beyond) their physical
limitations (voltage, vibration, heat...) I WOULD be worried !!!

If yer chicken you could plug the supply into a Variac and run the AC
voltage
up over a period of time to 'reform' the dielectric...

nah....   ;^P

H^) harry