Avo multiminor mk5 - UK Vintage Radio Repair and Restoration Discussion Forum

happytiger · 14th Jul 2015, 6:29 pm

I recently acquired an AVO multiminor,however while all ranges work ok, the movement is non linear, ie 12v reads 10v on 25v range,but at fsd its bang on, all ranges read low until about 3/4 scale when the error disappears, there does not seem to be any visible mechanical damage,any body have any suggestions?

AC/HL · 14th Jul 2015, 8:38 pm

A similar problem in an earlier thread was caused by magnetic particles in the coil gap (probably from PMM or Phil G4SPZ?)

14th Jul 2015, 6:29 pm	#1
happytiger No Longer a Member Join Date: Dec 2007 Location: Bristol, Avon, UK. Posts: 184	Avo multiminor mk5 I recently acquired an AVO multiminor,however while all ranges work ok, the movement is non linear, ie 12v reads 10v on 25v range,but at fsd its bang on, all ranges read low until about 3/4 scale when the error disappears, there does not seem to be any visible mechanical damage,any body have any suggestions?

14th Jul 2015, 8:38 pm	#2
AC/HL Dekatron Join Date: Nov 2003 Location: Heckmondwike, West Yorkshire, UK. Posts: 9,642	Re: Avo multiminor mk5 A similar problem in an earlier thread was caused by magnetic particles in the coil gap (probably from PMM or Phil G4SPZ?)