[Milsurplus] FW: [Glowbugs] LM-8 Heterodyne Frequency Meter

[Hubert Miller]

>On Behalf Of Frank Barnes
Sent: Thursday, August 10, 2023 2:44 PM
To: Glowbugs
Subject: [Glowbugs] LM-8 Heterodyne Frequency Meter

I have an LM-8 that I often use in my shop as a signal generator.  It is an early 1940's model, I think (possibly pre-war?), but I'm curious to know when it was manufactured.  Does anyone have information about production dates for the LM series?-- 
Frank Barnes
>W4NPN

Anyone here have a comment on this?
-Hue Miller