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Old 6th February 2002, 02:41 AM   #11
haldor is offline haldor  United States
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Join Date: Aug 2001
Location: Columbus, Ohio
FYI,

If you are bringing up an old piece of gear that hasn't been powered up in a long time it is a good idea to bring the power up slowly using a variac. This gives the electrolytic caps a chance to form (develop the correct internal chemistry). If you just jam on full power to an unformed cap it will often die.

This is an actual, documented case where breaking in electronics components is a requirment. When you buy a new electrolytic cap this has already been done by the manufacturer so you don't have to. Watch out for NOS (new old stock) filter caps, especially those surplus monster caps you picked up cheap for your power amps.

Phil
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Old 6th February 2002, 06:07 PM   #12
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Join Date: Nov 2001
Location: Harlowton, MT, USA
The scope had been powered up many times recently before I got it, so powering it up slowly wouldn't be necissary. I will start replacing electrolytics.
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