Subject: Re: PDP-11/73 booting! From: David Betz <dbetz at xlisper.mv.com> Date: Wed, 30 Nov 2005 20:38:59 -0500 To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Well, I have the two cables that connect to the RDxx drive. Sounds like my best bet would be to get a BA23 box with the appropriate panel already installed. I guess I'll start looking for one of those.

On Nov 30, 2005, at 7:18 PM, Allison wrote: > There isn't a "cab kit" for RQDXn. The cables were all internal > and you used RQDXn in one of the BA23/123 boxen. So you either need > a M9058 from a scrapped BA123 or a mostly torn up BA23 (micro PDP11 > or microvax) you can pull the pannel from. You also need the little > switch pannel inserts from the BA123 to enable READY/OFFLINE and > Writeprotect. > > You need: > > 1 50 pin female to female IDC cable (max length 18") RQDXn to breakout > 1 34pin female to female IDC cable (max length 30") (RX50) > 1 26pin IDC to card edge (RDxx) > 1 34 pin IDC to card edge (RDxx) > > If your not using either of those boxes then your doing what I did > which was to build something DEC didn't document. The cables are > seriously are trivial and not a big a deal like those breakout boards > and the switch pannels. > > Having done this I know.