> > I've read somewhere the mechanical puncher unit is not made by DEC but > > by some other company. > > > > Is there any known documentation about the DEC PC05 puncher ? > > There are several manuals at bitsavers. Why didn't you even bother > checking before posting? > http://bitsavers.trailing-edge.com/pdf/dec/papertape/
And which of those manuals covers the punch mechanism? Did you bother to read any of them before flaming? The OP is right, the punch mechanism is not DEC. I believe it was Roytron. There are some Roytron manuals on bitsavers, the punch shown there looks like the mechanism in my PC04/05 but I can't be sure, there may be subtle differences. But those might be worth a look. -tony