View Single Post
Old 15th Jul 2019, 8:01 am   #2205
AndyGilham
Pentode
 
Join Date: Oct 2016
Location: Dover, Kent, UK.
Posts: 235
Default Re: AVO Multimeter survey

Quote:
Originally Posted by AndyGilham View Post
A new ebay purchase
Avometer Model D (10S/10610) - Serial Number 19110-345 (March 1945)

Looks to have a missing Terminal Knob, so i will 3D print a replacement. Other than that, it looks in good condition. I will upload some photographs once its delivered.

Regards
Andy

As promised, please find attached some photos of the Moel D.
The instrument front panel is missing a terminal, but generally its in good shape.
The first thing i noticed internally was the resistors. It seems at some point one of the current shunts on the shunt board had burnt out (low current, 0.015A??), and so replaced by 2 series resistors.

Additionally, one of the shunts on the resistance board has been wrapped in a solder resist tape. I assume this was due to the windings becoming loose.

Andy
Attached Thumbnails
Click image for larger version

Name:	IMG_3650.jpg
Views:	114
Size:	50.7 KB
ID:	186712   Click image for larger version

Name:	IMG_3653.jpg
Views:	124
Size:	49.7 KB
ID:	186713   Click image for larger version

Name:	IMG_3662.jpg
Views:	119
Size:	78.8 KB
ID:	186714   Click image for larger version

Name:	IMG_3661.jpg
Views:	123
Size:	55.9 KB
ID:	186715   Click image for larger version

Name:	IMG_3657.jpg
Views:	119
Size:	83.1 KB
ID:	186716  

AndyGilham is offline   Reply With Quote