test-drb March 2003

test-drb@ccmp.vtda.org

314 participants
633 discussions

by WA8MFL＠aol.com

Stumbling across this thread, I couldn't help but notice the problem. One of the first order of business on the '89 is to check the power supply Molex connector on the back of the supply. This has a habit of getting too hot and carbonizing. Bypassing the heavy current lead is the usual way to handle that. You also need to check on the controller board to see if it's set up for hard-sectored disc or softsectored ones. The hard sectored (10 sectors) are probably long gone from this world. I still have mine and it occasionally gets the dust blown away. For those who learned to use a good typewriter this is the best keyboard ever installed on a PC.

21 years, 9 months

Hacking my KTM2 (6507)

by dwightk.elvey＠amd.com

Hi I've been disassembling the code for the KTM2 keyboard. I see now how they generate the various sync signals. The 6507 uses address line A0 to A9. A10 to A12 can be used for various strobes. Jumping to these addresses with different values fro A10 to A12 cause no change in the code executed but effect the video. A8 is used as a ROM select and A9 is used for A8 in the ROM. This way, the code maps into the first two 256 byte blocks of the ROM but the addresses look like 1xxH and 3xxH. They chose 1xxH because they do no subroutines but use the TXS and RTS to execute strings of addresses ( a little like a Forth engine does ). Now, as I've been disassembling the code, I've found some funny looking code. It causes difficulty for my disassembler. Here is a chunk of what I found. It sure looks like someone was on something when they did it. I suspect that it was to adjust the execution times to be equal, regardless of the result but I thought I'd pass it on and someone could explain how it worked. F1E2 03E2 5001 BVC L014 ; 03E5 F1E4 03E4 2A ROL A F1E5 03E5 L014: ; 1 F1E5 03E5 3002 BMI L015 ; 03E9 F1E5 03E7 F0 DB F0 ; note this could have been ; F04C BEQ ... F1E8 03E8 L017: ; 1 F1E8 03E8 4CF00D JMP L021 ; 0DF0 ; You can see that my ; disassembler loses it here F1E9 03E9 L015: ; 1 F1E9 03E9 F00D BEQ L016 ; 03F8 F1EB 03EB 30FB BMI L017 ; 03E8 F1ED 03ED 4CF50D JMP L018 ; 0DF5 Anyway, it is a screwy piece of code?? The addresses at the front of the line are the ROM addresses. The next col is what the 6507 thinks it is addressing. You'll note that I'd dropped any high order bits above A9 since they don't effect flow, only the strobe lines( see L021 above really goes to 1F0H ). Dwight

21 years, 9 months

List of interesting stuff was RE: Time to share a source - W. J.Ford Surplus

by dcrosby＠atitest.com

I would like to buy the HP-9121D drive.

21 years, 9 months

ICL OPD - Documentation

by avickers＠solutionengineers.com

OK, first (and easiest) part done, the Installation Manual: http://www.classic-micros.com/iclopd/installation/index.html Next up will be "Advanced Operations", as that's nice and thin as well. Then the handbook, which is fecking HUUUUUGE, and may take some time. -- Cheers, Ade. Be where it's at, B-Racing! http://b-racing.com

21 years, 9 months

Equipment Lifting

by SUPRDAVE＠aol.com

In a message dated 3/17/2003 1:30:40 AM Eastern Standard Time, charlesleecourtney(a)yahoo.com writes: << I'm trying to locate the manufacturer or source for a device used to lift equipment into racks. This is a manually operated device (or electric?) used to lift disk drives, servers, etc. and place them in racks. They should be portable as I've seen HP CE's use them. >> www.globalindustrial.com

21 years, 9 months

Windows 1.0 Prices are Crazy

by jrkeys＠concentric.net

This first one has end with 1.0 going for over $1000 and the second ends on the 18th and is at over $900. Glad I got mine here for under $3. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3404079329&category=11229 http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3406355260&category=11229

21 years, 9 months

Equipment Lifting

by ted＠larsonland.com

Another option is to rent one for the day. I have seriously contemplated renting one of these material lifts before....shouldn't be too expensive. http://www.unitedrentals.com/new/index.php/rental/General+Construction/Mater ial+Handling+Equipment/281?PHPSESSID=6ecb916a478e13600e9b940b7c87296a - Ted -----Original Message----- From: John Lawson [mailto:jpl15@panix.com] Sent: Monday, March 17, 2003 9:48 AM To: cctalk(a)classiccmp.org Subject: Re: Equipment Lifting On Mon, 17 Mar 2003 SUPRDAVE(a)aol.com wrote: > In a message dated 3/17/2003 1:30:40 AM Eastern Standard Time, > charlesleecourtney(a)yahoo.com writes: > > << > I'm trying to locate the manufacturer or source for a > device used to lift equipment into racks. This is a > manually operated device (or electric?) used to lift > disk drives, servers, etc. and place them in racks. > They should be portable as I've seen HP CE's use them. >> > > www.globalindustrial.com > Hot Damn! I looked (mostly) all over for these; never thought to check the company Dave's provided. I actually bought most of the parts to modify a regular handtruck to do this, but haven't got a Round Tuit on that project yet. A bit pricey, the cheapest lift starts at $400, but if you've ever put a Kennedy 9100 four feet up in a rack (on it's slides) by yourself... these might be a good value. The category they're in is a bit counter-intuitive: look for them in "Carts / Casters / Trucks - Lift Trucks - Lift Truck Winch". Of course if you have lots of bux you can get a hydraulic one, but.... Cheers John

21 years, 9 months

RS/6000 Console Help

by pete＠dunnington.u-net.com

On Mar 17, 8:58, Bob Brown wrote: > 6&8 on a 25-pin. 6 and 8 are DSR and DCD; linking those is not likely to make much difference. You're probably thinking of linking 6 to 20 (DSR and DTR) or even linking 6 and 8 to 20. Might also be worth linking 4 (RTS) to 5 (CTS). The equivalents on a PC-compatible 9-pin D-connector are linking 4 (DTR) to 6 (DSR) and 1 (DCD), and linking 7 (RTS) to 8 (CTS). Of course, if this is not a PC-compatible 9-pin (which is *not* a standard) then all bets are off. > >Tried connecting pins 6 & 8 on a 9 pin and still no luck. > > > > >If I remember, try connecting pins 6&8 together and see if that helps. > > > > > >(we have a special adapter that does just that). -- Pete Peter Turnbull Network Manager University of York

21 years, 9 months

Making images of drives on a VAXserver 3100

by jwb＠paravolve.net

I have a VAXserver 3100 that I'd like to backup via images of it's 3 drives. Right now I have it netbooting NetBSD and I can do a dd if=/dev/sd0c of=sd0c.bak bs=8100, but I am unsure if this is the best way. Anyone have any better suggestions? The disks in question currently contain an install of OpenVMS 7.X -jwb [demime 1.01a removed an attachment of type application/pgp-signature]

21 years, 9 months

Wafer collecting and manufacturing

by rborsuk＠colourfull.com

Hi, I figured I would pass this along for anyone who didn't know. If your into silicon collecting or interested in the manufacturing process you should get your self a subscription to SolidState Technology. It's free. http://www.subscribe-sst.com It's a decent magazine that has been around a few years. Rob rborsuk(a)colourfull.com

21 years, 9 months

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test-drb March 2003