test-drb April 2009

test-drb@ccmp.vtda.org

204 participants
261 discussions

by legalize＠xmission.com

See ebay item # 270367995292 -- "The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download <http://www.xmission.com/~legalize/book/download/index.html> Legalize Adulthood! <http://blogs.xmission.com/legalize/>

15 years, 8 months

HP Laserjet II available in Seattle area

by derschjo＠mail.msu.edu

Rescued a complete Laserjet II from the garbage at my girlfriend's apartment complex, just couldn't let it die like that. It powers up and passes POST, and the fuser heats up OK, but it doesn't want to take paper from the tray. This seems like a common ailment and shouldn't be difficult to fix. I don't have any need for it (got a LJ 4M+ as my workhorse). If anyone wants it, come and get it. (Seattle area.) Josh

15 years, 8 months

FREE: QIC-40/-80 Internal Tape Drive

by lee_courtney＠acm.org

Free for local pick-up in SF Bay Area (95032), a slightly used Conner internal PC tape drive for QIC-80/AccuTrak250(RW), QIC-40/AccuTrak120(RO) media. Comes with original docs, cable and DOS and Windows floppies. Contact me off-list if interested. FCFS... Lee Courtney

15 years, 8 months

Midwest Gaming Classic Roundup

by wgungfu＠gmail.com

Just a followup to my announcement post, the MGC came and went and was a huge success. 22,000 sq ft packed to the rim of computing, console, video arcade and pinball, so much so we're moving to a new located next year that'll give us around 30,000 sq ft. Here's my photo galleries: Vending Hall http://www.flickr.com/photos/91071283 at N00/sets/72157615745200729/ Coin-ops http://www.flickr.com/photos/91071283 at N00/sets/72157615745260231/ Competition Area http://www.flickr.com/photos/91071283 at N00/sets/72157615745281965/ Museum http://www.flickr.com/photos/91071283 at N00/sets/72157615834963880/ Underdog Chamber http://www.flickr.com/photos/91071283 at N00/sets/72157615746538685/ Family Game Room http://www.flickr.com/photos/91071283 at N00/sets/72157615835258766/ VGEVO http://www.flickr.com/photos/91071283 at N00/sets/72157615746725067/ Ben Heckendorn Experience http://www.flickr.com/photos/91071283 at N00/sets/72157615835307612/ Some Speakers http://www.flickr.com/photos/91071283 at N00/sets/72157615835542568/ People At The Show http://www.flickr.com/photos/91071283 at N00/sets/72157615746879399/ You'll notice the museum area had a decent vintage personal computer contingent, with people coming to represent Commodore, Texas Instruments, and Tandy/CoCo computers (all the others are mine). Once again, I'm extending the offer for collectors from here to take part and show of their equipment. I'd also be happy to host the VCF Midwest there next year as well, we have the space, and the people (I'm estimating attendance at about 4,000 unofficially for this year's show). And I love to promote our hobby any way I can. Marty

15 years, 8 months

Looking for Tek 1240/1241 ground leads...

by derschjo＠mail.msu.edu

I picked up a nice Tektronix 1241 logic probe to help me debug my old computers, and I have everything I need (4 6460 pods, 1 6462, a few flying lead sets, some grabbers, etc...) except ground leads (Tek PN 344-0267-00). Anyone out there have any to spare? Any suggestions for good places to find accessories for old logic analyzers like this (my Google searches keep turning up sites that want $400 for a probe and don't even have anything in stock...) Thanks, Josh

15 years, 8 months

Laserjet 4

by Watzman＠neo.rr.com

Re: "Glad to hear you're keeping your trusty LaserJet 4 - those are really great printers. And, on the plus side ....." Ah, the Laserjet 4+ is an even better version ........ :-)

15 years, 8 months

Need packing/shipping help from Land O' Lakes, Florida

by sellam＠vintagetech.com

Is anyone available to pack and ship a MacTV from Land O' Lakes, Florida? If so, please contact me directly. Thanks! -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

15 years, 8 months

HP262x keyboard to HP120 interface

by ard＠p850ug1.demon.co.uk

For those who are still interested in this (Rik?), I've now built the interface from an HP262x keybaord (actually one 'borrowed' from my HP2623 terminal) to my HP120. The differenve between the 2 keyboard interfaces is quite simple. The HP120 puts the scan counter in the keyboard, the interface being the clock and reset lines for this counter, along with an active-high 'current key pressed' siganl. The HP262x puts the scan counter in the terminal, the inteface is the 7 key select lines (basically the outputs of the counter) and an active-low 'key pressed' signal (open-collector). Although the Hp262x runs the keybaord at 5V, it's all 4000 series logic interally, and can be run at the 12V of the HP120 interface. So the interface between this keyoard and the HP120 is little more than a 7 it counter. I've now built it, it's a little box with a DA15 socket on one end to take the plug from the unmodified HP2623 keyboard (I obviously wanted to leave the keyoard unchanged so I can still use it with the 2623 terminal) and a short cable coming out of the other end ending in an RJ11 plug to go into the HP120. Inside are 3 chips, all common 4000 series CMOS parts. : A 4024 (7 bit counter). This is linked to the clock and reset lines from the HP120 via the resisotr/diode protection networks as used in an HP150 keyboard. The bottom 6 outputs of this counter are buffred by a 4050 chip and then fed via a 16 pin header plug nad socket to the DA15 socket for the keyboard. This chip may not be necessary, but some counters don't like driving long cables (glitches on the outputs can change the state of the flip-flops). I dout the 4024 sufferes from this, but adding one chip to be sure seems worth it. The last output from that counter is buffered bu 2 sections of a 4049 in cascade. The reason I used that chip is that I needed a NOT gate to invert the open-collector key-pressed/ signal from the HP2623 keyboard. This I did,, after pulling said signal high with a 3k3 resistor. The output of that NOT gate is again given a diode/resistor protection circuit and fed to the HP120 And it works. It worked first time actually (well, I did test as I went along, but after fitting the last connection , plugging everything in and powering up, it worked). I can type on the keyboard, the correct [1] characters come up. I can use the function keys, configuration screen, etc. [1] Modulo the fact that I have Danish/Norwegian ROMs in my HP120 (!) I am now looking at modifying an HP150 keyboard to work with the HP120. More news if I get that working! -tony

15 years, 8 months

Keypunch that was on eBay

by roger.holmes＠microspot.co.uk

Thanks for whoever it was who posted the info on the IBM 029 keypunch on eBay. I have won it, nobody else bid. After it has been shipped across the Atlantic I will have to think about converting it from 60Hz to 50Hz. I have the remains of a 50Hz verifier which has a 240v / 50Hz motor I should be able to use. Hopefully the rest runs on DC, so a step down transformer before the transformers and bridge rectifiers might be enough. Shipping costs more than the item of course. Anyone have any thoughts if it is worth trying the whole thing with just a 240 - 110 transformer? If the motor burns out, not the end of the world.

15 years, 8 months

TeleBit modem..

by geneb＠deltasoft.com

I've got a Telebit T2500 modem with a manual but no power supply. I also have a Penril Alliance .v32 modem with manual, no supply. If interested, email me off list. Thnx! g. -- Proud owner of F-15C 80-0007 http://www.f15sim.com - The only one of its kind. OpenQM - A Multi-Value database for the masses, not the classes. http://gpl.openqm.com - Get it _today_!

15 years, 8 months

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test-drb April 2009