HP Draftmaster II 7596A: EPROM dumps needed, urgent :-(

Here are the binaries for all the EPROMs on processor PCA for my 7596A. The PCA part number is 07595-60100 and is different from the one in the manual which is a 07595-60200 so I assume my PCA is older than the one in the manual. The EPROMs on the PCA are as follows: 17225-18001 U26 17225-18002 U35 17225-18003 U41 17225-18004 U42 07595-18097 U28 07595-18098 U37 Unknown U27 - no part number label Unknown U36 - no part number label Binaries for each chip are attached. All are 27512 EPROMs. I have also included photos of the PCA and the EPROMs in position. Hope that helps. David Collins Curator HP Computer Museum www.hpmuseum.net -----Original Message----- From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Martin Peters Sent: Monday, 23 May 2016 5:50 AM To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org> Subject: Re: HP Draftmaster II 7596A: EPROM dumps needed, urgent :-( Hi David! David Collins: Great! :) I think so. No, not now. The plotter is in the shackspace in Stuttgart and I was not there for several weeks and now I found an email saying they want to get rid of it. I already asked for the dumps here one year ago and now it seems to be really urgent. I know. As I was told by the guy who took a look inside one year ago, these parts do not exist in the revision we own. But I think, they only put the firmware in two EPROMs at HP in a newer revision of the board. And if not "only", I think the dumps would be helpful anyway. It would be great if you could do a dump for me :-) Many thanks, Martin -- Martin Peters martin at shackspace.de