On 11/03/2016 12:19 PM, Cursitor Doom wrote:
I don't think any of us here would take some semi-ancient item of
electronic equipment of unknown provenance and just plug it in the mains
socket and switch on. We know from experience or elsewhere that is not an
advisable thing to do. So we typically gently wind up the voltage via a
variac over an extended period of time. But is that enough? I read
somewhere one should also monitor the current drawn by the equipment as
one does this. I admit I've never been quite that fussy, but would be
interested in hearing what others think about this rather more cautious
approach and if it actually achieves anything worthwhile.


Well, maybe if it has an old school 50/60 Hz transformer, rectifier, cap
power supply. I don't have a lot of those sorts of things.

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC
Optics, Electro-optics, Photonics, Analog Electronics

160 North State Road #203
Briarcliff Manor NY 10510

hobbs at electrooptical dot net
http://electrooptical.net