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Old 25th Oct 2017, 10:07 am   #9
Aub
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Join Date: Mar 2005
Location: Nuneaton, Warwickshire, UK.
Posts: 2,037
Default Re: AR88 Low HT

A few years ago, my AR88D had low HT. I eventually discovered a very leaky ( almost short ) capacitor. This capacitor was a decoupling capacitor, mounted inside the RF coils box. It was dragging the HT down. I can't remember which one it was, but it was about 1 and a half inches long by an inch wide, by quarter of an inch thick, so quite chunky and dark brown. It was mounted edgeways on and close to one of the partitions inside the box. Replacing it brought the HT voltage back up and allowed the VR150 to emit its usual purple glow.

Hope you get it sorted.

Aub
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