[Milsurplus] LM- Frequency Meter - B and A battery voltages

[KD7JYK DM09]

On 12/10/2022 19:18, jphutch60bj wrote:
> Been looking in vain for A and B battery voltage information  in "1940"'s
> 
> My LM- frequency meter battery connector has 5 connectors 4 look to be 
> the same profile and seem to be connected in series, the 5'th connector 
> is different seems top be the B battery connection.

Which LM model?

I've been running into this for some mil items I have.  I look for the 
manual, see what batteries it requires per the manual, then look up the 
battery for the pinout, and voltages.

Kurt