test-drb October 2002

test-drb@ccmp.vtda.org

261 participants
654 discussions

Supply of DEC 11/23 11/73 front panel switches

by GOOI＠oce.nl

Hello Jay. I am sorry to say that I am not going to use those buttons in PDP-11's, but in my StarShip (click the starfield on http://home.hetnet.nl/~tshaj). I have developed the code for the main screen, with a correct view on the stars. The code allows for magnification and view opening angles. To use these "options" I am looking for 'nice' buttons, like the ones that HP uses. Those buttons have a LED in the middle to indicate that the button is active. If those buttons you have found at the surplus dealer have the LED in the middle of the button, I would like to buy several of them. Let's say 20 with the green colored LED and 20 with the red LED. I can pay via PayPal, or send cash $$ in a letter, what you prefer. Hoping you have found the correct buttons ... and willing to do the effort, kind regards, - Henk. (PS. would it help to say that I was one of the donators?) > -----Original Message----- > From: Jay West [mailto:jwest@imail.kwcorp.com] > Sent: maandag 28 oktober 2002 17:30 > To: cctalk(a)classiccmp.org > Subject: Supply of DEC 11/23 11/73 front panel switches > > Found at a local surplus dealer... a whole container of those > square white > pushbutton switches that I am pretty certain are the ones > used on the "front > panel" of the 11/23 or 11/73 systems. > > They have the following markings.... > > I think they had them marked at 0.59 each, if these are the > right ones (got it at work actually, haven't had a chance to > go home and check they are the right ones) and anyone wants > any, let me know. > > Jay West

22 years, 2 months

Micropolis hdd

by dwightk.elvey＠amd.com

>From: "WOFTBO Data Recovery" <woftbo(a)cox.net> > >I have been searching for information regarding the assembly of a Micropolis 1991 hard drive. > >What is the best method to disassemble the case to access the latching area? > >Dave S Hi I've found that a hammer and a chisel work best with Micropolis drives. But that is just my opinion. Dwight

22 years, 2 months

All-In-One Interface For All Your Retro/Legacy Drives

by jingber＠ix.netcom.com

Gratuitously ripped from Slashdot: An anonymous reader writes "Individual computers have announced a new version of they're multi-format floppy controller the Cat Weasel. This new version (Catweasel MK3 PCI/Flipper) has a few surprises such as 3 different interfaces to connect it to the host computer and a socket for an original C64 SID chip :). 'The main purpose of the Catweasel has always been to allow access to non-standard disks using normal PC-disk drives, even if you usually need a completely different computer for that. The capacity of the drive does not matter in this case: A 5.25 inch drive with 1.2MByte capacity will read and write a C-64 disk with 170KByte as well as a 3.5 inch drive with 1.44MByte can access a 1,76MByte Amiga disk. Together with a company that has specialized in data recovery, we're working on the implementation of more than 1100 different disk formats, and it does not matter that this has been classified impossible by others before. Even the 800KByte disks from older Macintosh computers can be used in standard 1.44MB drives, although the original drives have rotated their disks at variable speeds.' Find out more at the Catweasel MK3 PCI/Flipper page."

22 years, 2 months

Anybody want Varian 620/F Reference Handbook?

by aek＠spies.com

> Is this, in fact, an office of Varian Data Systems? Varian's computer division was sold to Sperry in the mid 70's "Second Source Computers" bought what was left from Sperry in the 80's. I talked to Roger Lee at the company. 714/832-7724 voice, 714/832-3260 fax. rlee(a)sscitech.com. He repairs V-70's for some number of folks -- enough to keep him in business. He says there's even a 620i still running in England -- says the customer told him it only went down for repairs once.

22 years, 2 months

Grundy Newbrain problems

by lgomez＠cdromsa.es

A few days ago, i was looking for Grundy Newbrain schematics. Now i have it (if somebody need it, please let me know) -Thanks to Voyager- but i can?t solve the problem: When i turn on the computer, the 16 character display flicks for 10 seconds. After this i can see the image in TV or monitor screen: new?brain?????????????????????????????????????????????????????????? ???????????????????????????????????????????????????????????????????????? ??????????????????????????????????????????????????????????????????????? ???????????????????????????????????????????????????????????????????????? ???????????????????????????????????????????????????????????????????????? ???????????????????????????????????????????????????????????????????????? ???????????????????????????????????????????????????????????????????????? ???????????????????????????????????????????????????????????????????????? ???????????????????????????????????????????????????????????????????????? Uppercase are converted to lowercase Spaces are converted to ? Numbers are converter to alphabetical characters (1 to q, 2 to r, 3 to s ....) but in 16 char. display all information is ok. It look like add 32 to ASCII code to display, but it is not so, because ASCII(1)+32=ASCII(Q) Q not q If i move just a little the computer i can see the correct character in screen, but not spaces, it still as ?. It like there is a bad contact in componet board, but i've check all contact and i can't found the fault. Sombody know this problem?? There is not the flat cable conecting diferent boards. Thanks and sorry by my english. Luis

22 years, 2 months

Apple II Programmer's Aid ROM

by RCini＠congressfinancial.com

I just read about this in the A2FAQ. Does anyone have this Apple ][ ROM and manual? Rich

22 years, 2 months

I buy DEC equipment. Call me

by robert＠usce.org

Robert M. Campbell U.S. Computer Exchange, Inc. 386 East Maple Troy, MI 48083 Ph. 248 583-9000 Fx. 248 583-9009 robert(a)usce.org

22 years, 2 months

Anybody want Varian 620/F Reference Handbook?

by xds_sigma7＠hotmail.com

Yea, some old NMR machines of theirs have their minis inside them... I think thats why they bought Data Machines in the first place, though that is a conjecture. Will J _________________________________________________________________ Get a speedy connection with MSN Broadband. Join now! http://resourcecenter.msn.com/access/plans/freeactivation.asp

22 years, 2 months

Anybody want Varian 620/F Reference Handbook?

by xds_sigma7＠hotmail.com

No, since for one, Varian sold that subsidiary to Sperry-Univac in the late 1970s.. Also, the computers were actually made in Billerica, MA.. But the logo of Varian Data Systems was the same as that of Varian Associates, the parent company. Indeed, the logo is still the same. So my money says its a Varian Associates building. Will J _________________________________________________________________ Unlimited Internet access for only $21.95/month. Try MSN! http://resourcecenter.msn.com/access/plans/2monthsfree.asp

22 years, 2 months

Reading old disks on Linux

by pat＠purdueriots.com

Quite a while ago (and maybe more than once) we had a thread on reading/writing 'odd' disk formats. I thought about it again, typed a few words into google, and found this: http://fdutils.linux.lu/Fdutils.html#SEC22 It looks like setfdprm and superformat will do much of what's necessary in working with 'odd' format disks. I haven't played much with it yet, but I've verified it works for setting the density, heads, cyls, and sect/track of the disk to write to. However, it doesn't allow for setting an initial sector number - something that's necessary for some formats. Using the program "fdrawcmd" should overcome any obsticles, but will require more work to be useful. I just thought I'd pass this along in case people would find it useful. -- "This fucking university has shown time and time again that it is completely fucking incompetent when it comes to employing technology" -- Anonymous http://dilbert.com/comics/dilbert/archive/images/dilbert2040637020924.gif

22 years, 2 months

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test-drb October 2002