Help with service manuals

[HendoNZ]

Hi all, I'm hopeful someone out there can help me out.
I recently scored a couple of pieces of equipment;

PSI MODEL A102 WAVEFORM GENERATOR

VENNER DIGITAL COUNTER TYPE TSA6636/2M

I'm trying to locate some services manuals for them.
Would love to hear form anyone about these units.

Cheers

[Andy Watson]

I believe that Venner also went by the name of Malden Electronics. Some of their output was rebadged by Marconi. I think your counter is identical to the Marconi TF2414.

[HendoNZ]

Thanks for the info - still hard to find a manual for that one.
Cheers