Here in Denver, you can go to any of a dozen thrift stores and buy nearly any sort of older MAC for $5 upwards, though few are as high as $50. Oddly enough, the newer decked-out ones are often quite inexpensive, while the older classic mac's are high, e.g. $25 or so. I've yet to go out on any day when I couldn't come back with at least a dozen mac's though. I've yet to take one on, however. I don't even accept them when they're offered for free. It's too frustrating getting the boxes open. Dick ----- Original Message ----- From: "Cameron Kaiser" <spectre(a)stockholm.ptloma.edu> To: <classiccmp(a)classiccmp.org> Sent: Saturday, February 17, 2001 3:47 PM Subject: Re: Santee swap meet wrapup http://www.armory.com/~spectre/ -- Wesley ----------------------------

On Sat, 17 Feb 2001 jpero(a)sympatico.ca wrote: PowerMacs are starting to show up in my parts. Someone snagged a 7300 would've been 50% off but apparently someone got there earlier than me (it would've been $10 with a Mac SVGA monitor!) I got a 5100CD about a year ago which was a nice score. LCII's and LCIII's are starting to become common as well, plus Classic and Classic II's. Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org

Cheapest 512k sold recently on eBay (and more than a dozen are in the sold database for last 30 days) was $40, top price was about $150. A 512k is nice to have. 128k is better. 128k that doesn't say 128k (ie the original mac) is even better.

Well my 2 cents from up north... I found a bunch of original m000001 MACs (how many zeros...?) about a year ago but only one had the original 128K board. That one is a keeper for the collection...most of the m0000001 no-128k cases I have had some 512k boards put in them IIRC when I checked out all of the 30 compact Macs I have accumulated... By the way, I finally finished off my complete compact MAC collection by finding a boardless Color Classic (no I dont have a Classic II) this weekend. Unit looks complete except for the missing board... So if anyone has a working (maybe even non-working) board from a: Prefered: Color Classic Color Classic II Not original but should work (anybody tried these?): Performa 275 or 550 LC 520 (not sure if that one ok....) LC575 board That he would be willing to part with, Id like to hear from you very much! I have plenty (too much!) stuff to trade or whatever... Claude ----- Original Message ----- From: Sellam Ismail <foo(a)siconic.comTo: <classiccmp(a)classiccmp.orgSent: Sunday, February 18, 2001 9:28 PM Subject: Re: Santee swap meet wrapup Festival ---- http://www.vintage.org

On Mon, 19 Feb 2001, John R. Keys Jr. wrote: I picked up a nice, complete IIvx system the other day for like $14. It's actually still very usable, albeit a tad slow. Wow, really? I run across Color Classic II's regularly. I have one in my collection and have seen at least one or two in local thrift stores within the past few weeks. Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org

That's interesting since supposedly they were never marketed in the US. if I had found a Color Classic II I wouldn't have bothered getting the LC575 mainboard to upgrade mine. The crippled 16mhz '030 in the original is just too slow. Jeff -- Collector of Classic Microcomputers and Video Game Systems: Home of the TRS-80 Model 2000 FAQ File http://www.geocities.com/siliconvalley/lakes/6757

If you pick up another one let me know and I will buy it or trade for it. Thanks John ----- Original Message ----- From: "Sellam Ismail" <foo(a)siconic.com> To: <classiccmp(a)classiccmp.org> Sent: Monday, February 19, 2001 9:35 AM Subject: Re: Original B&W Macs...was Re: Santee swap meet wrapup years I to I'm It's hard in my within Festival -------- http://www.vintage.org

The only faster 68040 mac is the 840AV at 40 mhz, and 650 is 33 mhz and quite a nice machine.

Hey I've got a CC40, maybe I better start paying attention.

I think so, they did the support chips I am pretty sure.

Intriguing. Someone showed up very recently on Vintage Macs saying he had a LISP Explorer and was trying to figure out what to do with it. Probably not. :-( But you might try the NetBSD folks. They support some kinds of network and video cards, though they do rely on MacOS to initialise them. At least you might be able to get driver code. http://www.netbsd.org/Ports/mac68k/ Actually, I think a great all-around 68K Mac is the IIci. It's expandable, lots of slots, "standard" hardware and runs a fairly good range of System versions (I think 6.0.8 through 7.6.1?). You can find them cheap, they're really common. I have two, one I got as surplus and one I bought bare-bones, stripped a beat-up IIsi, and put the HD, FD, memory and AUI network card into that. Love 'em. -- ----------------------------- personal page: http://www.armory.com/~spectre/ -- Cameron Kaiser, Point Loma Nazarene University * ckaiser(a)stockholm.ptloma.edu -- Conscience makes egotists of us all. -- Oscar Wilde ------------------------

*grin* I think I'll keep this one if only for the curiosity factor, but the guy alleged he had a few more in stock so I'll see what he has next time I'm down in San Diego. -- ----------------------------- personal page: http://www.armory.com/~spectre/ -- Cameron Kaiser, Point Loma Nazarene University * ckaiser(a)stockholm.ptloma.edu -- A good pun is its own reword. ----------------------------------------------

Alas, I don't :-) but I have two Tomy Tutors, even better! :-P I saw that "Hex-Bus" interface in the back. I haven't really gone through the manual yet, but I did some web searching for a pinout or description and can't really find any except for mentions of TI's apocryphal interfaces and software. Hooking it up to my C64 would be cool if I could somehow turn it into a regular DB-25 or equivalent and plug it in the C64's user port. Suggestions? No, no software :-( -- ----------------------------- personal page: http://www.armory.com/~spectre/ -- Cameron Kaiser, Point Loma Nazarene University * ckaiser(a)stockholm.ptloma.edu -- Humor is a drug which it's the fashion to abuse. -- William Gilbert --------

Cameron Kaiser wrote: There is one really great source of technical information on the CC40 and its very close younger brother, the TI-74. Unfortunately, the scanned images are in a "Visioneer Paper Port" format. The free viewer is online at the same site, but it is too bad they aren't PDFs. I believe the following link is the right one, although it isn't responding right now. I hope it is just temporarily down and not gone. ftp://209.172.89.40/Hexbus_CC40_TI74/ If it is away for good, I sucked down a lot of the files anyway, so if you want hard-core info on the hexbus (and the closely related "dock bus" on the TI-74), I can set it along to you. It is a nicely designed bus (for its purpose, given the technology of the time). The basic idea is this: a 4b data bus with two handshake signals. All wires are driven open drain -- it is a true bus, not a point-to-point repeater arrangement. It is an async bus, and different peripherals can talk at differents speeds. The protocol is such that the transfer speed is determined by the slower party in the transaction. Say there are two high speed members and one slow one. The protocol speed will be slow if the source or target is the slow device, but in the case of fast->fast, the protocol is slow only until the point that the slow one realizes it isn't being addressed, then the speed picks back up again. There are some constraints on minimum and maximum handshake transitions (on the order of 8 microseconds minimum, a few milliseconds maximum), so it could easily all be managed in software. The TI calculators are a combination of dedicated bus controller and software interface. The processor the CC40 and TI-74 (and 95) use is an interesting one; quite different than many other 8b micros. Here is a link to a PDF describing the whole family of chips. The PDF is quite massive, and most of it goes into detail on configuring the myriad on-chip peripherals that exist on various members of the family. Go to section 16, which starts on page 485, to get to the instruction set. http://www-s.ti.com/sc/psheets/spnu127a/spnu127a.pdf Here are some other links, in no particular order. Some are much more informative than others. http://pw1.netcom.com/~bcostin/cc_ticc40.htm http://www.99er.net/cc40.html http://people.delphi.com/eicher/index.html http://people.delphi.com/eicher/CC40C.BIN (although it says .BIN, it is a text file, and quite informative) http://www.hightechsolutions.com/ti7495.htm http://www.zock.com/8-Bit/D_CC40.HTML http://www.rskey.org/cc40.htm http://home.debitel.net/user/groener1/comp_011.htm#CC-40 http://home.debitel.net/user/groener1/comp_011.htm#TI 74 http://members.aol.com/swim4home/cc40.html http://www.heimcomputer.de/comp/tizubehoer.html http://www.computingmuseum.com/museum/tipc.htm http://www.99er.net/ti74art.html http://home.inforamp.net/~crown/TI/ti.html#TI 74 BASICALC http://192.132.34.17/pub/electronics/microprocs/TMS7000/assemblers/ Finally, here is another uP based on a lot of the same technology as the CC40 and the TI-74: http://www.computingmuseum.com/museum/exl100.htm If you have any other good URL's you've found, please pass them on. ----- Jim Battle == frustum(a)pacbell.net