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Question for tube inmates and connoisseurs. A friend needs to sell off some high-end gear, which includes an Audio Research Reference 1 preamp. It's been stored (boxed) since 2007, a lot of that time being in a hot garage. I.e., it hasn't been turned on for seven years. It was working as of that time.
Here's the ARC:
http://www.arcdb.ws/REF1/REF1.html
Tube complement consists of eight 6922s or equivalent. My feeling is that the safe thing, if only because of the caps, is to plug this into a variac or perhaps a poor-man's variac. OTOH, seven years isn't that terribly long a time. Anyway, we (or he) needs to test this before it can be sold, and it would be handy if it didn't have to go into a shop for that.
I can probably advise him on how to use the poor-man's variac (PMV). He's at a distance from me.
Thanks in advance for any thoughts.
Steve.
Follow Ups:
Couldn't tell from the site whether it has a switching power supply. I doubt that it does.
If it has a switching power supply, just plug it in and hope for the best. If it has a conventional power supply use a variac to power it up slowly.
For one, it has only been 7 years.
For two? I've found some "modern" equipment has bigger issues with periods of low voltage (i.e. - variac startup) than with capacitor aging.
Reforming those 'lytics may save you having to repair something you want to sell.
Good luck!
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