Simpson series 5 P meter

[Burnedfingers]

Hi,

I am seeking information so I can repair a bad ebay purchase a few years back. I have a Simpson series 5 P meter in need of the correct resistor values as well as calibration. Any information on the series would be appreciated very much.

Note*

The series 5 P is different from the series 5 or 5M. I have a schematic for the 5 and 5M and it is different than the 5P.

 

[Apex Jr]

Is this a Simpsom 260 VOM SERIES 5 P ?
I might have a operating book.

Steve @ Apex Jr.