test-drb October 2003

test-drb@ccmp.vtda.org

252 participants
500 discussions

Emulex SC04 controller... what kind of disk does it talk to?

by aek＠spies.com

anyone recognize this puppy? -- yup.. ANSI 8" interface I was VERY happy someone outbid me on it when I discovered what it was.. If someone has a paper copy of the X3.101 spec, i'd like to add it to the archives on spies. It appears to be based on the Shugart/Quantum 8" drive standard but on a single 50 pin connector instead of a 50 and 26.

20 years, 5 months

Manual 16c

by comex＠vigamil.cl

Hi Brian. I need the manual of 16C, I seek all place, but can?t find. Can you help me?

20 years, 5 months

"Woz" IIgs, & Dynabyte computers...

by dwoyciesjes＠comcast.net

Anybody looking for these? I was at Computer Recycling & Refining in North Branford, CT today. Not a bad place. About 2000 square feet. And a bunch of stuff. Two interesting things I saw were a "Woz" signed IIgs (?) and a Dynabyte computer. According to the guy there, it was the first portable? Considering it's about the size of a couple mid-tower PCs, it's not really that portable... Either way, both are for sale. Give them a call, 203-488-0535. If you looking for some other PC or Mac computers or parts (pallets), maybe some HP switched hubs (at least 1 pallet), or even a couple large Cisco Catalyst 5500 units; they may be able to help you out. They welcome visitors, just call in advance... -- ---Dave Woyciesjes ---ICQ# 905818

20 years, 5 months

Is there a physicist in the house?

by rhudson＠cnonline.net

Heisenberg says we can't know the speed of <thing> and it's location at the same time. What if I concentrate on location while timing <thing> ie <thing> is at "5" and 1 second later it's at "35" is it not going "30" per second? and while it was going 30 per second didn't I see it at 5 and 35? (note to a real physicist this question is probably meaningless...)

20 years, 5 months

WTB/T: RL02/01, QBUS SMD

by pete＠dunnington.u-net.com

On Oct 31, 14:23, Patrick Finnegan wrote: > > Looks like it. If you've tried two terminators and two controllers, > > all that's left is the cable or the drive. I assume you've got the > > ribbon cable from the controller to the bulkhead connector round the > > right way. > > Hmm, right that's one thing I'm not too sure about... the cable is just > straight-thru, right? I'm using a makeshift cable (one of a couple that I've > tried), and it's straight-thru, because I was assuming the 'real' cable is as > well. Sometime today I'll try to look to see if there's anything too obvious > that's wrong (eg missing 4MHz clock signal). Yes, it is straight-through. One of mine has 8" of old 40-pin ribbon cable from an Acorn 2nd Processor, vintage 1985 or so, and it works fine. The back of the bulkhead connector is just a dual row of pins on 0.1" centres, and an ordinary female header fits perfectly. Of course, depending on which way up you have the bulkhead connector, you might need a half-twist in the ribbon cable. -- Pete Peter Turnbull Network Manager University of York

20 years, 5 months

HP CRT Mold

by sloboyko＠yahoo.com

I unsubscribed from this list because of the volume, but I still read the monthly archives. I noticed than some people were wondering about the HP CRT mold problem. I really did solve it, by building a wooden box (to contain the IMPLODING crt), and mounting the CRT in it. Then, I went to the hobby store and got some nichrome wire used in cutting foam for model airplanes. I used an old AT power supply at 12 volts to power the wire, to just below red hot (I determined the length of nichrome wire to do this with expermentally, it was about 3.5 feet). I made wooden handles with screws to hold the wire as I sliced through (very slowly!!!) the old RTV, keeping the nichrome wire towards the front glass and not touching the CRT. after the front glass came off, acetone was used to remove the remaining old RTV, and all glass surface were cleaned spotless before reassembly with aquarium RTV around the edges. Of course, this was all VERY VERY hazardous and no SANE person should EVER even CONSIDER doing this (liability issues...). I completely restored my 2644A including getting both tape drives working, good matching paint, and I even buffed the yellowing keys back to original condition (very tedious work). But it is an amazing, cost is not object machine. The switching power supply is crystal controlled!!! My tube didn't have very serious phosphor burns so I felt that it was worth this effort. If anyone wants the CRT box they can have it for the cost of shipping. Hope I won't have to use it again! You actually can buy NEW crt's like this one - for $250!!! I also put new CRT's in my ADM-3a's (much cheaper, around $45 shipped, as I recall). Some details on the HP and ADM-3a CRT replacements are at: http://juliepalooza.8m.com/sl I've been working on 6120's, tiny paper tape readers powered by laptop power supplies, and a Scelbi clone capable of running SCELBAL (which I have resurrected). ===== -Steve Loboyko Incredible wisdom actually found in a commerical fortune cookie: "When small men cast long shadows, then it is very late in the day." Website: http://juliepalooza.8m.com/sl __________________________________ Do you Yahoo!? Exclusive Video Premiere - Britney Spears http://launch.yahoo.com/promos/britneyspears/

20 years, 5 months

vintage 3.5" disk drives

by PLancashire＠columbia.com

I use to have before the fire, a box full of about 50 different 3 1/2's My eon's ago i was responsible for evaluating 3 1/2's for Tektronix. Three different types, and you should have seen all the rev's Sony went through. The part I remember the most is the convincing the now loosing camps use to try to put down the Sony design. I'll see if I still have some of the doc's and such, if i do, I'll put them on a web site. -pete -----Original Message----- From: Curt vendel [mailto:curt@atarimuseum.com] Sent: Monday, October 27, 2003 7:32 AM To: General Discussion: On-Topic and Off-Topic Posts Subject: vintage 3.5" disk drives Did Seagate and/or Shugart get into making 3.5" floppy disk drives around 83/84??? Anyone have pics of very early 3.5" disk drives? Curt

20 years, 5 months

Radio Shack/Science Fair bonus

by erd_6502＠yahoo.com

I recently won an auction described as a "Science Fair Junior Electronic Lab 10 in 1"... the picture showed a couple of blue grid boards which were, AFAIK, not part of a 10-in-1 It turns out that in addition to the 10-in-1, there was an entire (and a partial) "Science Fair Junior Project Board Kit" (cat no. 28-153) - one manual, two plug boards, one IC board (14-pin socket + 14 springs) plus a double handful of mixed loose components. The components are somewhat interesting from a historical perspective - there are several flavors of transistor sockets, several segmented LED displays (some on PCBs as from an LED calculator, some in DIP form), mercury switches, reed switches, and a bag of resistors with a "King Kits" card from Poly Paks. I'm curious if there's a repository of ancient Radio Shack kit manuals out there - I did not get a manual for the 10-in-1 (cat no. 28-225), but at least I got its box (covered in packing tape, grrr.) -ethan The New Yahoo! Search - Faster. Easier. Bingo http://search.yahoo.com

20 years, 5 months

Semi OT: 20ma loop troubleshooting

by thompson＠new.rr.com

I am trying to set up a Black Box '20ma loop to serial' converter box on an existing, known working 20ma loop which currently drives a couple of 20ma terminals. There is a note in the black box manual that the device won't work on analog current loop. Am I correct in assuming that an analog current loop is one where an analog instrument is sending its 'telemetry' over the loop? A 20ma loop terminal obviously would not fit into that category I am assuming. The folks I am working with seem to have tried the obvious. They only want the black box device to receive data so they have hooked on the appropriate wires so far no output. Any obivous gotcha's with this technology? Paul --

20 years, 5 months

Um, was there a...

by rhudson＠cnonline.net

Is it just me or was there a small cp/m machine named the Ortrana Attache?

20 years, 5 months

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test-drb October 2003