[Milsurplus] Wanted - Manual...

[Kenneth G. Gordon]

I just discovered an essentially never used Brown Electro-
Measurements Corp (BECO) model 312A Impedance Bridge in my 
stack of stuff. 

However, I need a manual for it.

Can anyone help? Is there a mil equivalent for it?

It looks somewhat like the ZM-11 bridge which I also have, but no 
eye-tube, and appears to have some of the same functions. It is 
designed to measure unknown RCL, Q and D. It has an internal 
battery with a charge position on the power/mode switch, and a 110 
VAC 3 wire connector on the outer case. It is neatly built into a nice 
portable case painted light blue.

Any help would be greatly appreciated.

Ken Gordon W7EKB