hyoenmadan wrote on 2023-03-05, 03:31:
Ozzuneoj wrote on 2023-03-03, 08:20:I would like to talk to some Dell experts to learn where this system fits into their history, because there is absolutely zero i […]
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I would like to talk to some Dell experts to learn where this system fits into their history, because there is absolutely zero information about the existence of this machine online aside from the trademark registration in 1993 and one 20 year old post from someone saying they repurposed the chassis of one of these.
It's a Dell Exclaim 486/50 (DX2-50) desktop, with original keyboard, mouse and monitor in original box. As a bonus, someone had upgraded this with a Media Vision multimedia kit, so it has a PAS16, 2x SCSI CDROM and fancy Labtec stereo speakers! So far, everything works, and the CRT is absolutely gorgeous! Perfect blacks, excellent color.
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I found it listed recently and managed to get it for a great price in untested condition. Thankfully, the seller not only packaged it back into the box appropriately (base off of monitor, original packaging in place and double boxed to protect the artwork!!).
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Inside it is incredibly clean and the CMOS battery is, thankfully, external. It had slightly corroded the battery negative battery pin but there appears to be no damage on the top of the board (haven't pulled it yet to check the back). Everything else seems to be working great though! I get a tiny bit of sporadic noise from the power supply so I will probably crack that open and see how things look in there.
To my astonishment, I managed to get the hard drive reading by just setting the drive parameters to auto (not as shown in the picture above... those are the defaults due to the lack of battery) and rebooting the PC. It has DOS, Windows 3.1 and an interesting startup program called Dell Library Menu.
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Also, there are hand-written labels on the pull tabs on all of the drive ribbon cables... but not on the CD-ROM cable which was added later. Surely, the writing didn't come from Dell, did it? 🤣
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Anyway, I plan on making a thread about this but I had to post something now. I'm super excited to get it 100% cleaned up and to get all the kinks worked out.
From my reading online, non-business-oriented Dell PCs were barely a thing in 1993, which is when this was manufactured. It's very well built too. The back of the chassis is painted and looks very "premium", except for the fact that the keyboard "hole" is obviously DIN\AT sized but has a PS/2 port in the middle of it... which tells me this case wasn't tooled exactly for this machine.
Oh gawd... It came with the GOOD AT101 keyboard, and not the later rubber dome "QuietKey" trash!!!
This machine is a good getting just for the keyboard alone!
The keyboard is a Honeywell 101WN and is actually rubber dome as far as I can tell. A few of the keys were stuck down when I got it, so I pulled them with my key puller tool to reseat them and that is literally all the keyboard needed to work perfectly. When I looked under the keys I'm fairly certain it was a rubber dome I was looking at in there... no mechanical switch that I could see.
Personally, I use a Dell Quietkey on my test bench and it works great. From my experience vintage non-dome keyboards are the most unreliable, torturous to repair, overrated bits of vintage gear. Don't get me wrong, I like the feel and sound of them, but I would gladly have all the hours back that I've spent trying to fix the stupid things since I started into retro gear. I could have replaced the caps on probably 50 motherboards and video cards in the time I've spent on keyboards, only to end up with no reliable vintage non-rubber-dome keyboards because some other part always fails on them, some tiny piece isn't aligned properly during assembly so you have to rebuild the entire thing, or some obscure bit is failing\defective and takes ages to find an affordable replacement for.
... I know many will disagree with this, but it has been my experience. I think the only sure-fire way to get a reliable vintage mechanical keyboard (not counting stumbling on a good working one by chance) is to throw cash and time at it until it decides to work properly.
My Non-rubber-dome vintage keyboard experience:
*IBM Model M2 (Lexmark) = bought brand new in box; damaged in storage by bad caps; ruined by horrible design choices and fragility of construction. Horrible plastic key matrix that burns\tarnishes when the cap goes bad, and a circuit board that relies on plastic clip pressure to keep good contact so that all the keys work. And the clips can break very easily, rendering the board worthless without cobbling things.
*IBM Model F (XT)= found in an attic with original box marked "Defective 1984", so it was maybe used for a couple years, max. Something on the board was dead and I was unable to diagnose it, even with help online. Found a replacement PCB affordably after years of waiting for one to turn up. New board must be ever so slightly different size\shape and was a bear to get put back together. A couple flappers got damaged during reassembly due to the struggles I went through. Some keys are now intermittent, so I need new flappers... and hopefully that fixes it. But in the end, the layout is atrocious so I haven't bothered dumping more money into it for new flappers, and there's always a chance that it just won't be reliable anyway.
*KeyTronic XT clone (with caps led) = bad foam and foil switches. Not that hard to get into but I followed some less than perfect instructions online (foam was way too thick) and also managed to use foam that was too stiff as well. Now it's a worthless, over-sensitive mushy mess. Texelec of course now sells replacement pad sets, but again... for $35 more I'd still have the horrible XT layout and I'd rather not fight with pulling out all the hand-made foam and foil pads I meticulously built and installed.
*Franklin Ace 1000 = bad foam and foil switches... didn't even bother trying to replace them after the debacle with the KeyTronic. Though I'm sure it's not too bad once you get a proper set. If they were cheaper I'd have replaced them, but I ended up just selling the machine to a guy who had a use for it.
*Cherry MY point of sale keyboard = I currently use this on my PC 5150 because it is AT\XT switchable, works reliably and has a decent layout, but the keys get stuck if you press them slightly off center and it just doesn't feel as good as most rubber domes. Got 5 of these from someone and they were all in good condition but all felt similarly bad.
*Focus 2001 = It's mechanical, but I can't remember much about this one... it's in my collection and I believe it generally works but I would have to test it again. I don't use it on my test bench because I prefer a normal straight (not L shaped) enter key for working in DOS. It is very loud and "clicky" but feels decent. I think a couple of the clips that hold it together are cracked so the seam isn't tight all the way around and there's no easy way to fix this due to the way it is designed.
*Vendex XT Clone = Alps switches I think... feels great, isn't too loud. Good blend of AT and XT layout while being XT compatible, but for whatever reason just isn't reliable. Half the keys don't register. I have no idea what kind of nightmare lies ahead of me to try to open it up, but I'm hoping it just needs cleaned to work properly. This is most likely the keyboard I will fix to use on my PC 5150. I still don't love the layout but it's better than the Model F layout.
... compare all this to my rubber dome keyboards, and I can only think of one that was objectively horrible and that was a really old Keytronic rubber dome XT\AT switchable. The keys feel absolutely terrible and you simply cannot push a key down without deliberately pressing dead center. All other rubber dome keyboards I have used from all eras have been almost 100% reliable and ranged from "meh" to "surprisingly nice" on the key feel. 🤷
I use modern mechanicals all the time and my refurbished Corsair K70 has been working perfectly for like 7-8 years now. Who knows how it will be when it's 30 years old though. 😮