Zach,  

I know someone who has plenty of the original DEC 68pin to standard
centronics type 50 pin SCSI cables for sale.  I believe she is selling them
for $15.00 ea., if interested drop me a line and I will give you her email
address.

Rick 



At 11:18 AM 11/13/97 -0500, zach@acsu.buffalo.edu wrote:
>Thanks for the info/support.
>
>I understand the SCSI issue more clearly now. The cable will be fun to
>find, I wonder if it's in any way 'standard'. I've come across a cable
>company that'll probably have 68 pin to <you name it> cables.
>Anybody have any luck with 3rd party stuff like this? Like many others,
>this is a hobby for me so there ain't a lot of $$ to throw at it.
>I'm sure the DMA/PIO work is going well. I for one appreciate it having
>gotten as far as it has!
>
>I'll definitely pick up the ball on the video driver. Looks like that's
>an area in need of help.  I haven't got a monochrome 30 to work with (that
>I know of) so it'll be good to have a willing victim .. errr helper. :-)
>
>Thanks for the tip on it being 'pmax', even if that's only something
>that describes the processor. At least it gives me a reference of sorts.
>Thanks Dave, for pointing out the fact that the frame buffers are different,
>keeps me from following a dead end.
>
>So far I've spent about 8 hrs scanning the web for info. Not a lot out
>there, and yet there's tons. I expected not to find the register set
>and addressing in the customer manuals, I've downloaded about 50M of
>compressed vax archives to scan through for info. Exhausting that, my
>next search will probably be on comp.sys.dec.   What I don't have (yet)
>and am in search of is the address/register set and details about what
>to write to what registers.  I'd prefer not to work blind, since that's
>a good way to end up blind with a fried video subsystem.  So yes, I'm
>at square 1. We'll need the same info for the mono '30's.  I have
>learned there are the two color options, GPX and SPX, whose differences
>seem to only be the 864x1024 or 1024x1280 resolution, and that there
>were 16" and 19" monitors. If I find out there are differences that I
>can't test, I'll be sure to speak up.
>
>
>Zach
>
>
Rick Copeland