test-drb October 1998

test-drb@ccmp.vtda.org

175 participants
1141 discussions

by fauradon＠pclink.com

>#19 is the hardest to find. How about the demo cart #2? Is that a har to find Item? Francois ------------------------------------------------------------- Visit the desperately in need of update Sanctuary at: http://www.pclink.com/fauradon

25 years, 9 months

dishwasher and my 64

by SUPRDAVE＠aol.com

jeez,. if anyone needs a 64, ive got 3 i want to get rid of. i'm apple ][ biased. =D In a message dated 10/12/98 8:37:42 PM US Eastern Standard Time, eric(a)brouhaha.com writes: > Jim Strickland <jim(a)calico.litterbox.com> writes: > > Well, I reassembled the 64, after cutting a manilla file folder to replace > > the paper between the metal shield on the back and the back of the board. > ... > > So okay, where DO I get a replacement keyboard for this thing? Also a > case > > in nicer condition would be nice. This one had a keyboard cover hinge > > permanently cemented to the top. > > It would be much easier just to find an entire 64 in good condition. Keep > the one you have now for spare parts.

25 years, 9 months

Picture up (RE: Microsci HAVAC)

by SUPRDAVE＠aol.com

the infamous grooved disk? is there anything wrong with that design? looks fairly clever and reliable. i havent seen any wear problems with the 20+ apple disk drives i have. the only minor issue is adjusting the head stop for which all you have to do is sight a little dot on the grooved disk (apple calls it a cam) with the little metal cam follower and make adjustments as needed. david In a message dated 10/12/98 7:46:36 PM US Eastern Standard Time, cisin(a)xenosoft.com writes: > The FIRST drives for the Apple ][ used a Shugart mechanism with the > infamous grooved disk. I have no idea what they might have used later.

25 years, 9 months

Strange computer... ATR 8000

by rexstout＠uswest.net

Picked this thing up at Wacky Willy's in Portland, OR for $5 with a floppy drive(actually two 5.25" drives in a case with a PS). Not quite sure what to think of it. It says ATR8000 SWP Microcomputer Products on the front, lighted power switch on front, and on the back we have two 13-pin Molex connectors marked Peripheral Out and Computer In, and three edge-connectors marked RS-232, Printer and Floppy Drive. Inside it says Software Publisher's ATR8000, and has a Z80 CPU, a WDC floppy IC and a VERY small amount of RAM... They assumed it was an Atari of some sort, as they recently got an 800 and 800XL. Does anyone have any idea what the ATR 8000 is? BTW, if you need some Univac disk packs(don't remember the numbers on it) they have two at WW's. Kinda expensive, they say they sell the platters seperatly to artists @$10 each. With 4 or 5 platters in each pack, you either need to shell out almost $50 or be good at convincing them that it's not worth that much(and it's not easy, I've tried before). BTW, it's at the Vaughn St. location, at the end of the Fremont bridge(US30 exit, then the Vaughn St exit from the exit ramp...). -------------------------------------------------------------- | http://members.tripod.com/~jrollins/index.html - Computers | | http://www.geocities.com/Area51/Lair/1681/ - Star Trek | | orham(a)qth.net list admin KD7BCY | | ham-mac(a)qth.net Portland, OR | --------------------------------------------------------------

25 years, 9 months

Marketing (was Re: Columbus analogy (Was: Corrections to trivia

by maxeskin＠hotmail.com

I maintain my stance that 'microprocessor' is a term used by the public and media to refer to a series of technical developments, that are not well considered before calling them microprocessors. In short, there is no way to define a microprocessor in the technical sense. TI's 1979 book Understanding Microprocessors defines it as: A digital integrated unit (or a set of IC's) that contains the digital functions necessary to be a CPU. It "processes" information and controls and keeps the system working in harmony as it responds to the step by step program that the CPU follows. Nice and circular :) >what a "microprocessor" is. In fact, the Arabs and the Israelis will >never have peace until the definition of a microprocessor is agreed upon >once and for all (oh yeah, and what "the first" means too). > >Sellam Alternate e-mail: dastar(a)siconic.com >------------------------------------------------------------------------------- >Ever onward. > > Coming in 1999: Vintage Computer Festival 3.0 > See http://www.vintage.org/vcf for details! > [Last web site update: 09/21/98] > > ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

25 years, 9 months

Strange computer... ATR 8000

by sinasohn＠ricochet.net

At 04:36 PM 10/12/98 -0800, you wrote: >Picked this thing up at Wacky Willy's in Portland, OR for $5 with a floppy >drive(actually two 5.25" drives in a case with a PS). Not quite sure what >to think of it. It says ATR8000 SWP Microcomputer Products on the front, >lighted power switch on front, and on the back we have two 13-pin Molex >connectors marked Peripheral Out and Computer In, and three edge-connectors That is a (iirc) CP/M(?) box for an atari 800. I believe it plugs into the 800 (or other 8-bit atari) and the atari is the terminal for the CP/M Machine. Pretty amazing device. (Pretty amazing that I recognized the name! 8^) --------------------------------------------------------------------- O- Uncle Roger "There is pleasure pure in being mad roger(a)sinasohn.com that none but madmen know." Roger Louis Sinasohn & Associates San Francisco, California http://www.sinasohn.com/

25 years, 9 months

dishwasher + mainboards

by SUPRDAVE＠aol.com

In a message dated 10/12/98 6:18:47 PM US Eastern Standard Time, jim(a)calico.litterbox.com writes: hope you scraped your dishes clean before you ran them through! lol. Hehe - actually I ran it with a load of dishes. :) > --

25 years, 9 months

dishwasher + mainboards

by allisonp＠world.std.com

< Your esophagus, on the other hand, might object to your drinking HCl (de < on how dilute, I guess). Actually a fairly powerful acid is the citric acid in lemons and limes that people can and do eat/drink. Most pharmaceuticals use citric, hydrocloric and some preps even nitric acid to get a the required PH. This is really way off track for cleaning boards unless they have been hit with a strong alkli (leaking nicads!), in which case a good dousing with vinegar (acetic acid) or lemon juice (citric acid) will neutralize that. Anyhow the PH and total acidity of a dishwasher unless useing something strange is fairly mild. Electrolytic corrosion (usually from ionic solutions and dissimilar metals) is prevented by quickly drying the board either with mild heat or forced air. Unless your water is bad (unsafe to drink) it is likely fine for washing a board. I've done this to 10-15 qbus cards, a Micronta DVM, and several s100 cards with the expected result, clean. I do it on boards I'll have to work on as it's less messy and in one case it cleared a short! FYI: I used to service marine radios when I lived on LI,NY and the procedure for dunked electronics was toss it in a barrel of clean water ASAP to get the salt out. This is repeated with several barrels of clean water to get all of the salt. Then the equipment is than opended, cleaned and repaired as needed (speakers, microphones, buzzers, enclosed coils). Generally speaking potable water is ok, mud worse (abrasive), salt is real nasty. Allison

25 years, 9 months

Picture up (RE: Microsci HAVAC)

by roblwill＠usaor.net

Did the Unidisk look anything like the Disk II? OR could it have been possible that the drive mechanism was replaced in mine? -- -Jason (roblwill(a)usaor.net) ICQ#-1730318 ---------- > From: Sam Ismail <dastar(a)ncal.verio.com> > To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> > Subject: Re: Picture up (RE: Microsci HAVAC) > Date: Monday, October 12, 1998 6:52 PM > > On Mon, 12 Oct 1998, Tony Duell wrote: > > > Odd... I've got a number of Disk II's here, and every one has a stepper > > motor under the chassis with a disk on the spindle of it above the > > chassis. There's a spiral groove in the disk and a little lug on the head > > assembly that fits into the groove. The stepper motor turns the disk and > > thus moves the heads. > > > > Maybe there are several versions of the Disk II > > There is only one Disk ][. As mentioned before, the newer units were > first called the Unidisk and then later simply 'Apple 5.25" Drive'. > > Sellam Alternate e-mail: dastar(a)siconic.com > ---------------------------------------------------------------------------- --- > Ever onward. > > Coming in 1999: Vintage Computer Festival 3.0 > See http://www.vintage.org/vcf for details! > [Last web site update: 09/21/98] >

25 years, 9 months

Picture up (RE: Microsci HAVAC)

by roblwill＠usaor.net

Um, I don't care what anybody says, but that disk drive does NOT look like anything similar to an Apple Disk II. BTW: I used to have a Disk II, and the heads were positioned by a stepper motor, and didn't have any "spiral-grooved disc" anywhere in the entire unit. -- -Jason (roblwill(a)usaor.net) ICQ#-1730318 ---------- > From: Kai Kaltenbach <kaikal(a)MICROSOFT.com> > To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> > Subject: Picture up (RE: Microsci HAVAC) > Date: Sunday, October 11, 1998 10:34 PM > > OK, I snapped a quick shot of the HAVAC, it's not the greatest picture but > it'll do :) > > http://www.geocities.com/~compcloset/MicrosciHavac.htm > > Kai > > -----Original Message----- > From: Sam Ismail [mailto:dastar@ncal.verio.com] > Sent: Sunday, October 11, 1998 6:42 PM > To: Discussion re-collecting of classic computers > Subject: Re: Microsci HAVAC > > > On Sun, 11 Oct 1998, Kai Kaltenbach wrote: > > > This weekend I picked up this wacky little 6502 computer called the > Microsci > > HAVAC. Has anyone else ever seen one of these, or better yet, does anyone > > have a boot disk for it? > > Sounds neat. Can you supply us with a GIF? > > > The HAVAC has the weirdest floppy drive I've ever seen. It has a > > center-mounted clamp lever, and the head positioning is done via a > > spiral-grooved disc! > > The Apple Disk ][ used the same mechanism. > > Sellam Alternate e-mail: > dastar(a)siconic.com > ---------------------------------------------------------------------------- > --- > Ever onward. > > Coming in 1999: Vintage Computer Festival 3.0 > See http://www.vintage.org/vcf for details! > [Last web site update: 09/21/98]

25 years, 9 months

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test-drb October 1998