View Single Post
Old 14th Apr 2012, 11:04 pm   #4
brunel
Heptode
 
brunel's Avatar
 
Join Date: Sep 2005
Location: LEEDS.......North of the River Aire.
Posts: 872
Default Re: AVO 8 Mk.III A.C. voltage not functioning.

I checked the face cam, it was secure, I did tighten the securing screws another quarter turn.

One thing I did notice, the lobe that actuates the voltage switch appeared to be
lower than the lobe that actuates the current switch by approx 1mm.

I took what I believe to be the only course left, a slight adjustment of the lower leaf switch towards the face cam, only just enough room to grip it with a small pair of long nose pliers.

The switch now makes contact on all AC volt ranges, and this old AVO now reads correctly on AC volts.
brunel is offline