[AMRadio] Military Multimeter - OT

[Donald Chester]

I once had an old Weston multimeter that probably predated WWII.  It used a 
standard 4.5 volt "C" battery, which was getting hard to find. I did locate 
one once, but when it needed replacement, I noticed it was about the same 
size as three stardard AA cells.  I taped three of these together and 
carefully soldered them in series, and they fit right in the same spot.  I 
just soldered onto the wire terminals and wrapped with electrical tape.  
This worked just as well as the hard-to-find 4.5 volt replacement battery.

It can be tricky to get solder to stick to the AA cells without overheating 
them (I haven't tried this in years; not 100% sure if today's cell terminals 
would take solder).  Perhaps you could find a commercially made battery 
holder for the number of required cells, that would fit the space.

Don K4KYV

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