On 3/9/2016 12:20 PM, Henk Gooijen wrote:
  -----Oorspronkelijk bericht----- From: Marc Howard
Sent: Wednesday,
 March 09, 2016 8:51 PM To: General Discussion: On-Topic Posts Only
 Subject: Speaking of card cages...
 Has anyone ever reproduced the card guides used in the 8/A chassis?  I
 assume these are identical to those used in PDP-11s as well.  My are
 beyond
 brittle.
 Thanks,
 Marc
 ---------
 Marc,
 do you have pictures? 
Here is a photo of one of the sides of the 8/A (which I will
have to try
to straighten).  It is one of the strips of vertical bands with round
card guides standing off for the cards to slide between.
This is a 8/A 400 cage.  The larger 8A 600 and larger cage may have
different guides.  A friend has one of those and I will get him to
photograph it.
http://jimsoldtoys.blogspot.com/search/label/PDP8A
Thanks
Jim
  I googled but get different guides.
 Are they small, like 5mm, and colored maroon or white?
 Those are also used in the 11/44 box and expansion boxes,
 I guess every BA11-K.
 The BA11-L has white hard"plastic" blocks some 2" long
 and has slits for 4 boards.
 So, a picture or description would be helpful.
 - Henk, PA8PDP