- test-drb@ccmp.vtda.org - classiccmp.org

eBay item

by chrish＠knet.kootenay.net

here is an adam computer system http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=54946307

27 years, 6 months

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A new Altair record price

by altair8800＠hotmail.com

$6710.00 Wow! http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=52822778 ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

27 years, 6 months

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Computers for children (soldering)

by mbg＠world.std.com

My worst run-in with a soldering iron was when I was doing some work at my father's emergency-lighting plant *man* years ago. They used real industrial strength soldering irons (the metal body was about 1" diameter and the tip was a 4-sided point which was easily about 1/4" diameter). Well, I had placed the iron in its holder, and was reaching for something else when I caught the cord and the iron started to fall... my instinctual reaction was to reach out and grab for it, which I did... grabbing it firmly with my hand... quickly turning most of my palm and the anterior surface of all my fingers and thumb into seared tissue... I never did that again... Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com | | Unix Support Engineering Group | (home): mbg!world.std.com | | Compaq Computer Corporation | addresses need '@' in place of '!' | | 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ | | Nashua, NH 03062 | "pdp-11 programmer - some assembler | | (603) 884 1055 | required." - mbg | +--------------------------------+-------------------------------------+

27 years, 6 months

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Computers for children (soldering)

by dburrows＠netpath.net

>Worst burn I ever got from a soldering iron was when somebody tripped >over the mains lead. The iron was dragged through my hand and I was left >gripping the metal shaft. OUCH!. I have also had a fair # of burns in similiar manners but the one thing I would suggest for children is to wear glasses. When I was 9 or10 I was desoldering something when some solder splattered into the tissue in the corner of my eye. 1/4 inch over and it could have been serious. I almost always now make sure I am wearing glasses. Dan

27 years, 6 months

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Manual wanted: NorthStar FPB-A Board

by jimw＠agora.rdrop.com

Was just going thru a stack of boards from a recent acqusition, and discovered a NorthStar FPB-A S-100 Floating Point board. Looks like a good addition for my Horizon system, and it even came with the paper tape of NorthStar BASIC with FPB support. What it did not show up with was a manual, and it is only partially assembled. Anyone have a spare they could part with, or can carve a copy? I'd like to try and get this thing running. Also, if anyone has a copy of the disk based BASIC with FPB support, I'd like to nab a copy of that as well. Thanks; -jim --- jimw(a)agora.rdrop.com The Computer Garage - http://www.rdrop.com/~jimw Computer Garage Fax - (503) 646-0174

27 years, 6 months

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Wowzers - Looking for parts?

by brett＠xnet.com

------------------ Cut from Web Page ------------------------------- MOTHERBOARDS for COMMODORE VIC-20, the ever-poplar 5K memory color computer which still has a dedicated following. All components intact. "Some worked, some didn?t" when we powered-up a sampling and so we are selling them "AS-IS." Good source of spare parts or, if your a gambler, the basis for cheap computer; 3 lbs. sh. Two versions to choose: #VIC-01981, eleven 2114 RAM; 9 VAC req. $7.50 #VIC-01983 with two M58725 2Kx8 RAM or equal; requires 9 VAC and 5 VDC, $6.50 COMMODORE C-16 KEYBAORD, originally p/o the C-16 computer---a short-lived transition computer between the VIC and C64. By switching a few wires, it will work with VIC on most keys. Change info included. 5x15x1.5; 3 lbs. sh. #KB-C16 $3.00 (If purchased w/ VIC board $1.50) ------------------------------------------------------------------------- Oh - you want to know WHICH Web Page 8-) Beleive it or not - Fair Radio - out of Lima Ohio http://www2.wcoil.com/~fairadio/module.html BC

27 years, 6 months

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Rick Fish and the Lego Adding Machine

by sinasohn＠ricochet.net

A web search turned up a reference on the Cheapass Games web site (apparently really good games, if you like that sort of thing) to a lego adding machine. I thought it might be the same as the one I had found previously (that has since disappeared) but even though it isn't, it is very interesting. Enjoy! >No, I don't think Rick's adding machine was ever up on a web site. > >I was co-designer of the model, and I can give you a description of how >it works. > >The "Fish/Ernest" ;) adding machine was essentially a stack of binary >half-adders, powered by marbles. We got as far as designing the guts of >the thing, but never made the outsides (marble tracks are sort of >academic) so much of the device was hypothetical. But the guts worked. > >The half-adder itself starts with a hole through which a marble is >dropped. This marble will toggle the half-adder with one of two possible >results: > >1: If the half-adder is "on" (a flag attached to the gear mechanism is >up, representing a digit of 1) then the digit will turn off and the >marble will proceed to the next lower half-adder as a carryover bit. > >2: If the half-adder is "off" (the flag is down, representing a digit of >0) then the flag will be raised, and the marble will go into a waste >chute. > >A stack of these half-adders can be read from bottom to top, with the top >flag representing the 1's place, the second the 2's place, the third the >4's place, and so on. Each layer is about 7 bricks high, or roughly 3 1/2 >inches. > >The whole thing is gravity-powered, and you "charge" it by dumping a >handful of marbles into a holding pen at the top. You can input marbles >one at a time at the top, but we also designed a set of fingers that >would push marbles from lower holding racks into the appropriate digits >in the machine; for example, to add nine, one could push in the "1" and >"8" fingers simultaneously, and everything will fall out successfully. >This was probably the neatest thing about the machine. > >The waste chutes were designed to conserve energy by funneling waste >marbles into the holding racks for the next level. > >Of course, the machine had only the binary output, and could only add. >But it was still pretty neat. > >Anyway, that was longer than I thought. Hope it's as interesting for you >as it was for us. > >Best wishes, > > >-James Ernest >-Cheapass Games > >>Hi! I was wondering if you could do me a favor and as Rick Fish if he is >>the guy who used to have a web page about his Lego Adding Machine at >>http://legowww.homepages.com/projects/adding/project2.html? >> >>I am a collector of older computers, and there has been some discussion of >>late on a classic computer mailing list about early mechanical computers >>(such as the Digi-Comp 1). As part of this discussion, someone brought up >>a Tinkertoy Tic-Tac-Toe machine, and I recalled seeing a lego adding machine. >> >>Unfortunately, the link I had is no longer valid, but a web search found >>the cheapass games staff picnic page where Rick Fish is listed as having >>created a Lego adding machine. Even if he is not the person who had the >>above-mentioned page, I (and others) would love to hear about his calculator. >> >>In any case, thanks in advance! >> >> >>--------------------------------------------------------------------- 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/ >> > > --------------------------------------------------------------------- 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/

27 years, 6 months

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Poly 88 Docs

by dogas＠leading.net

Doug, I got all the H8 stuff you'll ever need... will copies suffice. I'll check and see what dups I have.... What are you looking for? I'd like at least a copy of the Poly 88 stuff. No papertape stuff (you lucky bastage) Thanks - Mike: dogas(a)leading.net From: Doug Yowza <yowza(a)ooga.com> >I have available the following original Poly 88 docs for trade: > Volume I: Assembly, Test, and Theory of Hardware (1976, 52pp) > Addendum to Volume I: Serial Option (1976, 14pp) > Cassette Interface Minicard (1977, 44pp) > Memory Addressing, Vectored Interrupt, and Serial I/O (32pp) > Volume II: Operation and Software (1976, 100+pp) > >I need Heathkit H8 docs, but I'd also consider other pre-1977 micro docs >in trade. I'm also looking for H8 software on papertape (copies are >fine). > >-- Doug > > >

27 years, 6 months

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micropolis 1355

by emu＠ecubics.com

Hi all, i got here a micropolis 1355 drive with my pdp, but the disc only spins up, and after few seconds down again. It happens again and again forever. like a jojo :-(( the power supply is ok. any ideas ? thanks, emanuel

27 years, 6 months

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Everybody see the Altair kit on EBay?

by bill＠chipware.com

Partially assembled: http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=52822778

27 years, 6 months

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PDP 11/23 advice

by adavie＠mad.scientist.com

Just found a free PDP 11/23 which I'll be picking up tomorrow, and a VT220. I know nothing at all about this machine - are there precautions I should take before shifting it? Drive parking or some such? Are there any hard to find extras that I should ask about before collecting it? Thanks for any help the list members may provide. As you can tell, this is quite urgent - about 18 hours before I pickup. The guy also has 6 free Sparcstation SLCs - I didn't bags those - maybe I should?! A

27 years, 6 months

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FT: Poly 88 Docs

by museum＠techniche.com

Hi Doug, I have an H-8 (with another on the way) with absolutely complete docs (including the sales slip). I don't think I have much in the way of paper tape though. Contact me. Jon ---------------------------------------------------------------------- >I have available the following original Poly 88 docs for trade: > Volume I: Assembly, Test, and Theory of Hardware (1976, 52pp) > Addendum to Volume I: Serial Option (1976, 14pp) > Cassette Interface Minicard (1977, 44pp) > Memory Addressing, Vectored Interrupt, and Serial I/O (32pp) > Volume II: Operation and Software (1976, 100+pp) > >I need Heathkit H8 docs, but I'd also consider other pre-1977 micro docs >in trade. I'm also looking for H8 software on papertape (copies are >fine). > >-- Doug > > >

27 years, 6 months

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