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Old 1st Jun 2006, 9:35 pm   #117
Rob Lines
Retired Dormant Member
 
Join Date: Apr 2006
Location: Chesterfield, Derbyshire, UK.
Posts: 52
Default Re: AVO Multimeter survey

SPCH
I have 2 AVOs to include in your survey.
The first is a Multiminor Mk V, whose only sign of a ser no is on the Cal Label (marked Brush Elec Machines Ltd & dated 16 Feb 78) shown as Inst No 60786. The front pael of the Avo is engraved BEM Maint no 1.

My Model 8 Mk 2 is Ser 162493-C-763. There is a sticky label on the side proclaiming 'Serviced by London Instrument Repair Centre', no date, but the label has a Thorn logo on it. This avo was bought for a few pounds at the NVCF a few years ago, it had multiple faults which I managed to repair but the most interesting was one of the finw ww resistors (1230 ohm) which, being o/c I painstakingly unwound until I found the break. At the break I found the 2 ends of the res wire laid carefully alongside each other in the wax, this resistor could never have worked from new! I carefully soldered the 2 ends together and rewound the rest back on and bingo, one very nice avo again!

I will dig out from my attic my 3rd Avo when my back allows climbing and post details for you

rgds
Rob
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