[Milsurplus] Milsurplus Digest, Vol 224, Issue 15

[robinson at tuberadio.com]

Hi Hutch,

there is some information here....
http://www.tuberadio.com/robinson/museum/LM-13/

Regards
Ray vk2no

> Date: Sat, 10 Dec 2022 21:18:22 -0600
> From: jphutch60bj <jphutch60bj at gmail.com>
> To: milsurplus at mailman.qth.net
> Subject: [Milsurplus] LM- Frequency Meter - B and A battery voltages
> Message-ID: <15abe9da-f229-ff89-7724-9d397408ff2e at gmail.com>
> Content-Type: text/plain; charset=UTF-8; format=flowed
> 
> 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.
> 
> were the A batteries 1.5, 3 or 6 volt? for 3 volt 3X4 = 12?? if 6 
> volt;?
> 6X4 is 24? thinking 1.5V was a bit low since the wire size is not 
> large.
> 
> was the B battery voltage:120, 90, 45 or 22.5 volt ?? I'm thinking 90 
> volt?
> 
> If there is a web page that would be sufficient.
> 
> Found this :
> https://www.govinfo.gov/content/pkg/GOVPUB-C13-4fec652c125b49a581edfe8d5c593147/pdf/GOVPUB-C13-4fec652c125b49a581edfe8d5c593147.pdf
> No average voltages were specified?
> 
> 
> Thanks
> 
> Hutch
>