Har ikke skjema Olof, men her er litt info som jeg rotet fram fra en gammel mailbox.
The networks are on PCB's attached to the rear of each terminal cup. If you remove the screws (torx bit #20) and pull out the cup, you will see the network. Values are clearly marked on the parts. I use Auricaps, Kimber capacitors, and Mills non-inductive resistors for my mods. There isn't much room on the boards, you have to be creative with placement of the new caps, and if memory serves me correctly -- some drilling and scraping down to the copper is necessary.
Dean G