I'm looking for an instruction sheet for installing the 1300 MHz prescaler, Option 72XXA-331K, into the Fluke 7260A or 7261A counters. It is Fluke Stock Number 546087 (Instruction Sheet 72XXA-331K). Fluke no longer had any record of it when I checked.
I have the manuals for both counters. The instruction sheet is listed in the parts list, but not included in the manual. This option was not considered "field installable". I bought one on eBay and would like to install it!
Fred