W.E. P-90368 Transformer

[wkrbee]

Hello all.Does anyone have any info on this transformer-Western Electric P-90386?
I/O impedance,pin-out etc.?
Found a pair in a old box  today that an old friend gave to me years ago,while .
looking for some 600:600 transformers to play with color,(a la Tape Op last month).
They appear to sell for ridiculous prices.

 

[emrr]

that's an internal WECO #, and to my knowledge no database of those #s has ever surfaced.  Only the standard WECO numbering system stuff holds significant value, and only a very small percentage at that.  Sorting out what it can do is very simple; lots of resources here to study. 

 

[wkrbee]

A little more info:it has 12 pins. There is a balanced pigtail soldered to pins 7+12 with the ground soldered to the case. 3+4 and 9+10 are strapped.Pins 6+9 have solder debris along with the 9/10 strap.There was a vague reference to it on a Japanese website,but that's all.
Can you point me in the right direction Doug?
                  Thanks
                    Jim