Studer A810 A812 A820 A827 A816 set extender cards

Complete extender cards set for STUDER A810, A812,A820, A827, A816 repairing.   1 39 pin extender card (green one) for audio and decksection high quality card, with ground area, numbered tracks 1 - 39according to the STUDER Service Instruction Manual. 2 64 pin extender card (blue one) for deck section high quality card, numbered tracks 1 - 64 (1A, 1B, 2A, 2B... ) according tothe STUDER Service Instruction Manual.   Both have additionnal test point to read signals byoscilloscope   Price is for green and blue cards