From: jwsmobile: Wednesday, March 09, 2016 11:49 PM
Here is a photo of a PDP 8/A 620 with the style of
card guides that
Vince is referring to: (I think)
http://www.oldcomputers.arcula.co.uk/files/images/pdp8408.jpg
Yep, that's what mine look like.
Different than the 8/A 400.
Here is a very clear photo of the card guides and cage for that beast.
http://www.retrotechnology.com/restore/8a_1sttest_trans.jpg
Yes. I'm unclear on whether the other kind could be used. It looks like
the appropriate little rectangular holes are provided, but I don't think I
have a 400 to try it.
Those "400" guides actually look easier to use. The kind I have are
frail and fussy.
Vince