AVO Multimeter
AVO Multimeter
(OP)
I have just bought through Ebay an old AVO Model 7X Panclimatic analogue multimeter. It certainly brought back memories as I was an engineer at sea years ago and it was standard equipment on all British and Australian Merchant ships.
What I'm after are the batteries. For the two lower ohms range it uses a standard 1.5v "C" battery. But for the 1 Meg range it needs 2 x (special sized) 4.5 volt batteries. These two batteries appear to supply separately and the relevant connections are not parallelled or "seriesed" up, so a 9volt battery can't be used.
If these specific 4.5V are no longer available I can probably rig up 3 x AA batteries and make the 4.5V.
What I'm after are the batteries. For the two lower ohms range it uses a standard 1.5v "C" battery. But for the 1 Meg range it needs 2 x (special sized) 4.5 volt batteries. These two batteries appear to supply separately and the relevant connections are not parallelled or "seriesed" up, so a 9volt battery can't be used.
If these specific 4.5V are no longer available I can probably rig up 3 x AA batteries and make the 4.5V.
Rod Nissen.
Combustion & Engineering Diagnostics
nissenr@iprimus.com.au
http://www.canded.com.au






RE: AVO Multimeter
RE: AVO Multimeter
RE: AVO Multimeter
I don't know about that specific meter, but there are quite a few sizes of cylindrical and button cells available these days. That may be your only out. An advantage seems to be that alkaline cells beat out carbon-zinc for shelf life and fewer electrolyte leaks.
{At least it's not that weird old 22½-volt "transistor-radio" battery Simpsons used to need.}
RE: AVO Multimeter
http://www.metercenter.com/cgi-bin/webshop.cgi?config=avo
etc. for more info