18-06-2011, 08:07 PM
(18-06-2011, 04:01 PM)Mark Ryding Wrote: does anyone know the equivalents for the following batteries
TR-233R and
RM-3 which is the old hearing aid battery.
they are for an Advance VM 78 millivoltmeter.
cheers Mark
As far as I can determine, the TR-233 was a 4V Mallory battery, the equivalent of which was the RCA VS400, General 696, and Eveready E233 - all long since obsolete. If you have the space, three 1.5V cells of whatever type you can accommodate might suffice. I wouldn't have thought that the extra 0.5V would be a problem, but that's just my supposition, not knowing anything about the equipment concerned.
Best of luck Mark
David
