Thread: old hi fi gear
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Old February 13th 16, 10:32 PM posted to uk.rec.audio
Phil Allison[_3_]
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Default old hi fi gear

Woody wrote:



Good idea to power up the amp every so often for a few hours to make
sure the reservoir caps don't dry out, otherwise keep it cool.


** Electro caps lose their electrolyte constantly and the warmer they are the faster it happens. Small caps are the most vulnerable.

When left uncharged for long periods, a chemical reaction takes place called "depolarising" that both reduces the cap's vale and increases its capacitance. If this happens to a reservoir cap,it may overheat and explode when the item is switched on.

Depolarising can be prevented by running the equipment on a regular basis.

More importantly, running equipment for a few hours warms it up and drives out any moisture that has collected.


..... Phil