test-drb

test-drb@ccmp.vtda.org

101090 discussions

by rcini＠optonline.net

Hello, all: I wanted to drop a quick note to the list to let everyone know that I've just posted a "dot 10" release of the Altair32 Emulator. Normally I wouldn't release a minor revision such as this, but a heavy user of the emulator has found some minor errors in the disk image code that causes corruption of the disk images after repeated use of the image. He also found an error in the binary file handling code that, upon looking at the changes history, has been around since version my first version. So, if anyone has been using version 2.3, please download and begin using version 2.30.10. Thanks. Rich Rich Cini Collector of classic computers Build Master for the Altair32 Emulation Project Web site: http://highgate.comm.sfu.ca/~rcini/classiccmp/ /************************************************************/

23 years, 7 months

I hate to do this, but...FA Osborne 1 with orig. software

by nerdware＠laidbak.com

It's time to thin the herd.... I don't have time for the old computers anymore, so I'll be clearing out the rest of my collection over the next couple of weeks. Last time I tried to offer stuff here with "make an offer", I got no responses, so I went the epay route this time. If you're interested, it's an original beige case model. It lights up, but drive access seems to be down. Has original disks in original box, including CP/M, CP/M utilities, MS BASIC, Supercalc, and Wordstar with the keyboard overlay. AC cord cover is intact. Aside >from yellowing, it's in great shape. The auction is at:http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=20479715 73&rd=1 Thanks. Paul Braun WD9GCO Cygnus Productions nerdware_nospam(a)laidbak.com "A computer without a Microsoft operating system is like a dog without a bunch of bricks tied to its head."

23 years, 7 months

Cromemco 64KZ Info Needed

by mhscc＠canada.com

The 64KZ is organized as two 32K Blocks (not 16); the A15 switches control whether that block is in the lower or upper half of the 64K range. Reset out disables that block after a reset to allow the boot ROM to use that space on power up. Override & DMA are only relevant for DMA operations. Bank switching is done by outputting a byte to 40H (this address is set by a jumper block/PROM): bit 0 = bank 0, etc., and each block's bank(s) are of course set with SW2 & SW3. Good luck; I've got a manual somewhere that I could scan if you haven't already gotten one elsewhere, but probably not this weekend. Email me off-list if I can help. m -----------------Original Message---------------- From: "Mike Davis" <ipscone(a)msdsite.com> To: cctalk(a)classiccmp.org Date: Wed, 21 Aug 2002 21:48:17 -0700 Subject: Cromemco 64KZ Info Needed Reply-To: cctalk(a)classiccmp.org Hope this is not a duplicate. The first one did not show up. I have just obtained a Cromemco 64KZ board. This has 64K of RAM and I'd like to test this out this weekend. Unfortunately, I don't have any documentation. There are 4 banks of RAM (16K x 8) Each bank is labeled "page0", "page1", "page2" and "page3". There are also 3 8-pin dip switches: I have a couple of photos at: http://www.msdsite.com/vcomp/cromemco/photos.html Since this is a 64K board and since there is other memory in my system. I'm hoping this allows some sort of bank switching. But without docs, I don't know how to use it. I assume the Bank A/B allow setting which bank a particular 16K might reside but am not sure. And the address lines of A15, A14 are a mystery. Is there a way to switch banks by writing to an I/O port? Location? Can any of you help with an explanation how this works and how I might use the switches? Thanks in advance, Mike ------------------------------------------- Introducing NetZero Long Distance Unlimited Long Distance only $29.95/ month! Sign Up Today! www.netzerolongdistance.com

23 years, 7 months

RT-11 - Jerome Fine

by dancohoe＠oxford.net

A message for those interested in the RT-11 project, Jerry asked me to notify the list that he is having some ISP trouble and will not be available by email for another week. If anyone has been trying to contact him, he is still around, just off the net for a while. If there's a burning need to contact him , I can get a message to him. Dan Cohoe

23 years, 7 months

RA70 help needed

by davebarnes＠adelphia.net

Hey all; I picked up an BA23 and a couple RA70 drives, etc etc... does anyone know a way to jumper pins on the RA70 drive so it will come up, and ready without having to use a control panel? I just have the drives, any help would be appreciated... thanks -- David Barnes davebarnes(a)adelphia.net OpenVMS , Tru64, Netbsd, Linux guru and collector of DEC equipment

23 years, 7 months

Intergraph clipper rescue

by roosmcd＠dds.nl

Hello, Today a rescued a load of clipper stuff. I've just finished taking everything out of the car and it consists of the following items: Interpro 125 + monitor 4x Intergraph 2000 (I already had one of thse myself); I opened one and they seem to have C300 clipper processors. 2 other monitors keyboards and mice 2 A3 tablets lots and lots of cables stack of documentation (looks complete to me) and last a lot software. I've got boot floppies, cd's, Informix and Microstation xx, all with licenses. I'm now trying to get things running. I've booted the Interpro 125, but had no succes with the workstations. Will these work with the same monitor as the Interpro 125? The other monitors are still standing downstairs :(. I tried connecting the 125 monitor to a workstation, but didn't get a picture. Or maybe I should sort out the manuals first and look there... I'm only planning to keep the Interpro 125 and one workstation, so if anyone is interested in obtaining a machine/Clix, please mail me. I got these for free, so you can have them for shipping cost only (from .nl). greetings, Michiel ps. Another question, what kind of memory do these machines take? It looks like standard 30-pins simms, Is this correct?

23 years, 7 months

These darned old computers

by tlindner＠ix.netcom.com

> For running OS-9 (Microware, NOT APPLE!), I'd recommend change the cable > and use DS drives. Also worth noting, a new beta version of OS-9 Level 1 (for the CoCo) was recently released. It include bug fixes, and back-porting of some level 2 commands. http://sourceforge.net/projects/cocoos9/ -- tim lindner tlindner(a)ix.netcom.com "Life. Don't talk to me about life." - Marvin, the android

23 years, 7 months

Nintendo Family computer power pinout?

by rigdonj＠cfl.rr.com

A friend of mine just picked up a Nintendo Family computer at a garage sale but he didn't get the power supply. Does anyone know what voltage and polarity this needs? He said that it looks like this one <http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=1372013871>. (The computer is the red and white piece on the left, the burgundy part on the right is a disk drive). Joe

23 years, 7 months

CoCo 2 video ( Was: These darned old computers)

by tlindner＠ix.netcom.com

> The Radio Shack Color Computer 2 is confusing. And somewhat lame. I have > to go find the disk controller carthridge to attach disk drives to it. > Then I have to find the proper disk drives. Fine. But I can't figure out > the video. I want to connect it to an Amdek color monitor. The only > video jack is the RCA type on the back that seems to be a built in RF > modulator. So needless to say I don't get video on the display. I can't > find any mention on the web of adding an external monitor to the CoCo. > The CoCo2 is lame. I do not like the CoCo2. > > Any idea on how to hook the CoCo2 to a composite monitor? Hey, lets not bash the CoCo 2. It was meant only to be connected to a TV. People used to sell composite conversion kits. But I haven't seen anything recently. Except the rare modded CoCo 2 on eBay. Best place to ask is on USENET: bit.listserve.coco. Someone usualy has something tucked away in a drawer. -- tim lindner tlindner(a)ix.netcom.com "Life. Don't talk to me about life." - Marvin, the android

23 years, 7 months

Anyone using their old Mac?

by mythtech＠mac.com

>I now have my Apple //e booting off of my >Quadra 360. Quadra 360? Is that the not as talented version of the Quadra that can skate a 720? -chris <http://www.mythtech.net>

23 years, 7 months

Wanted: Cromemco assistance

by mhscc＠canada.com

Congratulations! A fine box indeed. I might be able to help ya; I scrapped a pile of Cromemco stuff and Dan Cohoe's name is on most of what's left, but I believe there is most of a spare Z-2 cabinet left over, including the front panel (the version without floppy drive cutouts). But an S-100 chassis (especially the Z-2) is only that; as far as disk drives & OSs, that would all depend on what cards are in there. FWIW, I do have copies of 11-(Z80), 20-(68000) and 30/31-(68010) series Cromix, CDOS (their version of CP/M), and various utilities and languages. Also some cards & lots of manuals, at least until Dan cleans me out. What kind of info do ya need? m ---------------Original Message---------------- From: "Curt Vendel" <curt(a)atari-history.com> To: <cctalk(a)classiccmp.org> Subject: Wanted: Cromemco assistance Date: Wed, 21 Aug 2002 23:56:24 -0400 Organization: Atari History Museum (http://www.atarimuseum.com) Reply-To: cctalk(a)classiccmp.org Hi, I am planning on purchasing a Cromemco Z-2 system shortly, it has some special purpose Atari designed boards installed and was used within Atari to develop Atari 2600 VCS games. However the unit is missing the front cover, disk drive and OS software. If anyone can point me to a site(s) with good information on the systems and anyone who may have spare parts to sell like boards, keyboard and so forth, please let me know, thanks. Curt ------------------------------------------- Introducing NetZero Long Distance Unlimited Long Distance only $29.95/ month! Sign Up Today! www.netzerolongdistance.com

23 years, 7 months

OT: LCD panel / backlight...

by ccraft＠springsips.com

I did a little further disassembly and found a miniscule flourescent tube, but it wasn't broken. I put everything back together, giving firming nudges to all connections and tried it... the gods must be smiling upon me for, behold, it works! I've dodged the bullet ;) the laptop really belongs to my employer. Regards, Chris. On Friday, 23. August 2002 16:34, John Honniball wrote: > Chris Craft wrote: > > Anyone have any hints on what to do with the LCD display whose backlight > > has quit? I can still (barely) see that the TFT panel is working, but > > there's no light behind it, making it rather difficult to see. The panel > > looks physically ok, but it could have gotten beat up... > > I've taken apart an early Toshiba LCD-screened laptop and found bits of > broken glass behind the LCD. There were small fluorescent tubes behind > the LCD to act as the backlight. Somebody had broken one (maybe by > dropping > the machine), fixed it, and left some glass behind. > > Newer laptops have flat electroluminescent panels instead of glass > tubes.

23 years, 7 months

PowerUser external SCSI HD

by blacklord＠telstra.com

Hi Cameron, > > Rodime had a deservedly bad name, but in the interest of fairness, my > Mac Plus has a Rodime 20MB drive connected to it which has run > 100% for > a very long time. I've a pair of 40mb Rodime drives here (RLL'd out to 67mb) that have been running since 1988 - almost non-stop (on one of the BBS machines). One is a little noisy (always has been), but apart from that they are extremely reliable - let's see they must be at least 7 or 8 years past their "use by" date ? No dead sectors, no power up sticking - the only drive older is a 20mb Seagate ST225 that has been in use (sporadically) since oooohhh 86 or 87. Got plenty of spare ones though :-) Wonder what a hundred or so ST225's would go for on eBay :-) cheers, Lance ---------------- Powered by telstra.com

23 years, 7 months

chip pinout help

by dwightk.elvey＠amd.com

>From: "Peter C. Wallace" <pcw(a)mesanet.com> > >On Thu, 22 Aug 2002, Jim Battle wrote: > >> At 01:33 PM 8/22/02 -0700, you wrote: >> > >From: "Eric Smith" <eric(a)brouhaha.com> >> > > >> > >> Hmm, but then how is translation done on the inputs to the ROM? It is >> > >> a TTL device feeding the address, so the 0-5v swing (0.5v to 4+v) >> > >> swing would appear to be an input swing of +15 to +20. >> > > >> > >No translation required. PMOS thresholds are within a few volts of the >> > >positive rail. >> > > >> > > >> > > >> > > >> > >> >Hi >> > The only issue with PMOS is on the outputs. They >> >may not pull down as hard as a TTL input pulls up. >> >This is generally fixed with a pull down resistor >> >and/or a diode to limit the negative travel. Some >> >TTL can tolerate some negative on the input, most >> >CMOS can't ( I think the 4049 can though ). >> >Dwight >> >> Ah, master, you are precisely right. The circuit pulls down with 6.8K to >> the -V. Still, I'm surprised that 74xx inputs will take the output (I'm >> assuming that the PMOS outputs ran rail to rail). There is a clamp diode >> on the input of 74xx devices, but with a >10V difference, I'd expect either >> the driver or receiving clamp diode to complain. > > It is also possible the the PMOS outputs are open drain so the current >from the pulldown resistor is all that the clamp-diode sees... The PMOS doesn't pull down vary hard. It is usually in the order of a milliamp. It is hardly enough to cause problems for a signal diode that are usually rated at 50 ma. It might be open drain but even so, the pulldown is usually small enough that, to interface to TTL ( that has an effective pull up on it's input ), one has to add more pull down to get it to work well. This is why the resistor. The diode is just to limit the swing. The voltage is then across the resistor and any small pull of the PMOS. The pulldown of the PMOS is a constant current type so it can be clamped without doing damage. Dwight > > >> >> This is all just for my education -- the board does exactly that and I've >> learned that empirical proof takes priority over my speculations. >> >> ----- >> Jim Battle == frustum(a)pacbell.net >> >> > >Peter Wallace > > >

23 years, 7 months

Bad Drives

by jpl15＠panix.com

I was working for a rat-hole computer store when the Kaypro 10s debuted - Kaypro made a deal with Lal Tandon to buy 10MB drives made (IIRC) in Mother India - at any rate the 10s of that vintage had about an 80% DOA rate. You could (and I did, on numerous occasions) show up in the reception area of Kaypro in San Diego lugging a 10, and someone would bring you out a new one on a box, that had been burned-in... no questions asked, just "Sorry for the inconveience, here's a new one under warranty." They had a big tent set up in the parking lot complete with mobile air conditioners to handle all the re-work. It was truly a nightmare. These were from the batch where you could pay extra to have your unit 'personalized': it was supposed to be a mark of distinction that you had an expensive portable computer with your name tastefully inlaid. What happened in practice was the last guy on the production line took one of those vibrating-carbide-stylus things and scrawled whatever was on the invoice all over the back plate - never mind the paint or the silk-screening.... it's funny, now... AND - my 1988 Mac SE30 came with a CMS internal HD, complete with a nice copy of nVir - courtesy of a disgruntled quality-control tech at CMS. It would replicate itself at intervals and grab the speaker and say "Don't Panic" in that early MacInTalk voice. Then at some point it would say "Now Panic!" and trash your HD. Pretty tame as virii go today, back then the store I bought it from had to shut down for two days while they disinfected every machine and disk in the joint. Mine included. And I just recently found the original invoice for that machine, which looks down on me now from the shelf where it sits in snug reirement; it used to run my music studio. Cheers John

23 years, 7 months

HP 1000

by xds_sigma7＠hotmail.com

Lucky! I just have a 1000E CPU that doesn't work, a paper tape reader (sans interface), and the external MAC controller box (no cables or drives). Will J _________________________________________________________________ Join the world’s largest e-mail service with MSN Hotmail. http://www.hotmail.com

23 years, 7 months

chip pinout help

by dwightk.elvey＠amd.com

>From: "Eric Smith" <eric(a)brouhaha.com> > >> Hmm, but then how is translation done on the inputs to the ROM? It is >> a TTL device feeding the address, so the 0-5v swing (0.5v to 4+v) >> swing would appear to be an input swing of +15 to +20. > >No translation required. PMOS thresholds are within a few volts of the >positive rail. > > > > Hi The only issue with PMOS is on the outputs. They may not pull down as hard as a TTL input pulls up. This is generally fixed with a pull down resistor and/or a diode to limit the negative travel. Some TTL can tolerate some negative on the input, most CMOS can't ( I think the 4049 can though ). Dwight

23 years, 7 months

HP1000F ?

by glenslick＠hotmail.com

Is there a good source of info about HP1000 systems on the net somewhere? Are they interesting systems? Is there someone on the list that knows what this box is and can provide a quick summary of interesting details about it? I don't have any more info about this particular system other than the picture below. http://home1.gte.net/~gslick/hp1000/hp1000f.jpg _________________________________________________________________ MSN Photos is the easiest way to share and print your photos: http://photos.msn.com/support/worldwide.aspx

23 years, 7 months

Reseating chips

by dwightk.elvey＠amd.com

>From: "Bob Lafleur" <bob_lafleur(a)technologist.com> >> >How many of you remember the problem of chips coming unseated in older >computers (like the PET) and having to push all the chips down as the >equipment ages? > >I've now got this problem with my Kurzweil MIDIBOARD (a 6502-based MIDI >keyboard controller). A few months ago I had to open it and reseat all >the chips. Now I have to do it again. > >Does anyone know any tricks to keep this problem from occuring? I fear >I'm going to have to do this a lot now, especially with the vibrations >of playing the keys. > >Thanks for any tips. > > - Bob > > Hi Bob Two things. First, straighten the pins so they don't bow outwards. This is the most important step. For some reason that I've never figured out, the tension on the pins causes then to want to be out of the sockets, even though, you'd think it would tend to hold them in. The second thing will help for good contact and that is to use a silicon grease, like Dow Corning #4, on the pin leads. I've been told the Permatex dielectric grease is the same thing and I've used a product call Silglyde. Although, it is called a grease, it has poor lubrication properties but it will cause parts the come out with spring tension to come out easier, I've not seen problems with the leads straightened and the part weight being the only factor. Dwight

23 years, 7 months

PowerUser external SCSI HD

by mythtech＠mac.com

>> after I got burned on the >> Jasmine/Rodime fiasco >Don't think I ever heard about that - might be before my time. Care to >elaborate? Once upon a time, back in the early Mac days... there was a drive manufacturer called Jasmine. They made about the best damn drives money could buy. Every time there was a review of drives, Jasmine came out on top. And their prices were good as well. Well, Jasmine, like most external drive makers, didn't actually made the drives inside their boxes, they bought from other makers, stuck them in pretty cases, wrote formatting/partitioning software, and sold them under their name. Jasmine bought internals from a number of companies, Quantum, Segate, Rodime, and others. Well, one day, Rodime shipped Jasmine an entire lot of defective drives (and not a small lot, like thousands and thousands of them). Jasmine, sold these off, after packing them up, and doing their basic burn in. But the defects wouldn't show up until the drives had been run for some time... then Kapow... drive would die. Of course, this would happen about 60 days into good use, right before the 90 day warrenty expired. Suddenly Jasmine found themselves with many an angry customer, wanting a warrenty repair on their drive. More than they could afford to handle. So they tried to push the problem off on Rodime (after all, it was their drive that died), but Rodime denied responsibility, saying Jasmine bought the drives, and it was their problem to test them, and make sure they were good. So Jasmine naturally folded under the massive costs of warrenty repair, leaving everyone (myself included) with a dead drive, and no way to get it fixed. Two good things came of this... 1: Rodime folded not long after because of similar problems (from what I understand at least, I know they closed, and I know they had a massive run of drives they sold to the public go out while under warrenty). So they pretty much got their just dues. 2: A few of the Jasmine techs got together and formed a company, that was one of the first in a soon to grow industry of Data Recovery services of hard drives. They formed the company "Drive Savers" which advertises to this day in the back of most Mac magazines. So after that, I decided that it wasn't worth spending extra money on the best reviewed drive, because even the best reviewed could die and cost you big bucks. I paid $400 on an 80 MB external drive, and was able to use it for about 45 days before it died the first time. I was able to get it going again, and in the end, I got about 8 or 9 months of use of it, before I got sick of it crashing and taking all my data with it. I then replaced the inner drive with a 100 MB Quantum that I paid another $400 for, and used that for a few years, until I replaced it with a 1 gig Quantum (for another $400). Today the lower half of my Jasmine drive case, with its power supply and SCSI connectors, powers my SCSI CD burner that sits loose on top after the power brick for its case died. (and the final 1 g Quantum drive is dead too, stopped spinning up, from the sounds of it, I think it suffered from "sticktion" after having run non stop for a few years, and then being shut off and stored for a few more, the 100 MB Quantum I still have somewhere, and the 80 MB Rodime/Jasmine that was the original, made a very nice wind chime). -chris <http://www.mythtech.net>

23 years, 7 months

Need help finding old IBM PC game

by vcf＠siconic.com

I am trying to help someone find a game that apparently shipped with the IBM PC. Below is the description. -- First of all thank you very much for offering to help. This game is a crossing between mastermind and trivial pursuit.The graphics were extremely simple, similar to the mastermind board. The purpose of the game was to guess or identify a famous person or event?with the fewest hints or clues given. The lesser hints needed the more points scored, and I think there were up to 5 (I'm not so sure about the actual number) clues given, if unable to recognize the identity, well, your score wasn?t very high and you were given the right answer and passed on to the next clue. e.g. 1. shot from behind during the performance of Our American Cousin and then hints no.2, 3, 4 & 5?would be even more obvious, gradually disclosing more information in the?following clues.? So this game is different, because in similar games you know the character or the event and you just have to choose a correct answer among four or five options, so there is not much of a challenge, you end up guessing, not identifying which makes it much more interesting. It was a preloaded software game included in the brand new IBM pcs here in Mexico during the mid 90's. It was called "Pistas" , Spanish word for?"clues" or "hints". ??I tried contacting IBM, both here in Mexico and USA, but unless I give them exact model (and almost serial number) of the machine I saw it in, they cannot help me. Unfortunately, I didn't pay much attention to the pc itself since I came across this game a lot in demo pcs all over town. I never imagined they would suddenly stop using it , and when I called them, it simply got me nowhere. -- Any idea what game this person is talking about? And if so, anyone know where to get a copy? Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org * Old computing resources for business and academia at www.VintageTech.com *

23 years, 7 months

Video toaster and add-on cards

by dan＠ekoan.com

Hello, I just picked up an Amiga Video Toaster (just the CPU unit). Inside on the left are the video toaster cards, but the two right-most slots have full length cards made by Digital Processing Systems Inc. The cards are daisy chained to a connector on the motherboard. Each card has four BNC connectors, a 5-pin DIN, an RJ-11 jack and a three-position switch on the rear slot panel. The back side of each card is covered with a full-length aluminum shield. The only identifying numbers I've found, besides the FCC ID, is "743-770", then "PT2 REV-3, Made in Canada". There is also a Supra memory card with 6 MB (three of four rows populated) and an A2091 hard card. I haven't tried to boot this yet since I need to locate an Amiga keyboard, but I'd be interested to know if anyone has any documentation on the Digital Processing Systems cards. Thanks! Cheers, Dan

23 years, 7 months

Thanks Jeff was Re: Great finds at Auction Today and at Thrift

by dwightk.elvey＠amd.com

Hi Cocktails are fun. One can often convince the significant other that these are really just tables and should be part of the household furniture. Dwight >From: John <jrkeys(a)concentric.net> > >Thanks Jeff I found tons of information and manuals (they cost $20 each) for >the unit once I used the correct name (cocktail) for my google search. My >cost $15.51 plus tax looks even better now that I found they sol for $1945 >back in 1980. >----- Original Message ----- >From: "Jeff Hellige" <jhellige(a)earthlink.net> >To: <cctalk(a)classiccmp.org> >Sent: Tuesday, August 20, 2002 8:29 PM >Subject: Re: Great finds at Auction Today and at Thrift > > >> >Best find of the day was at a thrift (I only had time to stop at 2 of >them) >> >it was a Atari 2-player table console titled Missile Command. It has a >coin >> >slot for 50 cent to play the game. You sit at this unit and put your >hands >> >into the controller pocket that has a big yellow trackball and three fire >> >buttons for each player. They did not have the key to get into the unit >and >> >I have not plugged it in yet to test. It's in great shape and is model >> >number 23601. I checked on google and could not find any information on >the >> >unit. Anyone know where I can get spec's on this unit and what it cost >new? >> >> Truly cool...a Missile Command cocktail unit. Mostly it's >> stuff like PacMan that you see in that format. Here are a couple of >> pictures of one: >> >> http://www.nanonano.co.uk/arcade/miscom.htm >> http://www.classicarcadeonline.com/missilecommandcocktail.html >> >> Jeff >> -- >> Home of the TRS-80 Model 2000 FAQ File >> http://www.cchaven.com >> http://www.geocities.com/siliconvalley/lakes/6757 >> >> > >

23 years, 7 months

Any sources for used raised flooring?

by jmen1＠earthlink.net

FOR IMMEDIATE SALE: 4500 pieces of ACCESS COMPUTER FLOORING Severn/Concept 2000 with understructure and aluminum floor jacks. Make Offer. e-Breaker & Transformer, inc. 22700 S. Western Ave. Torranc, CA 90501 Tel: 310-533-6811 FAX: 310-533-6195

23 years, 7 months

Reseating chips

by bob_lafleur＠technologist.com

How many of you remember the problem of chips coming unseated in older computers (like the PET) and having to push all the chips down as the equipment ages? I've now got this problem with my Kurzweil MIDIBOARD (a 6502-based MIDI keyboard controller). A few months ago I had to open it and reseat all the chips. Now I have to do it again. Does anyone know any tricks to keep this problem from occuring? I fear I'm going to have to do this a lot now, especially with the vibrations of playing the keys. Thanks for any tips. - Bob

23 years, 7 months

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