Hi all, I could acquire *four* rotten PC05 Papertape Reader/Punches for PDP-11. I'm now restoring them. One of these is strange: Normally, the feed hole (between data hole 3 and 4) is used to clock in bits from the data holes. But this very special PC05 does not have a phototransistor for the feed hole, so the data clock signal must be generated by the stepper motor driver. Maybe it's a very old model: the READER CONTROL module is M705, not the usual M7050. And there's no doc for it. Does anybody has a FPMS with schematics for the M705 modul? Perhaps as part of some PDP-8 doc? Thanks, Joerg