VOGONS


IBM XT (5160) on my desk

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First post, by tikoellner

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On Friday I drove about 550km to pick up this beast. It was worth it. I have dissassembled the machine and got all cleaned. This is the final effect.

20170416_180552_zpspny2xbsn.jpg

Pretty basic config. Intel i8088 CPU, no coprocessor.

There were quite standard cards inside: one IBM CGA card, one IBM EGA card, IBM hard disk controller, floppy controller, async controller, serial-parallel controller. The only add-on is Microsoft InPort mouse adapter (the mouse came with the computer). First there were two types of floppy drives installed: one 5.25 (320kb) and one 3.5 inch (720kb). As with the machine I was given another brand new 5.25 IBM drive, I decided to go with both of them getting rid of 720kb drive, which was some poorly fitting non-IBM product in a shabby bay adapter.

I was relieved to see that the hard drive is fully functional and has no bad sectors at all. It's an IBM 20MB Microscribe. There is DOS 3.20 installed, Norton Commander 3 and some games (I also got from the seller about 100 5.25 diskettes with various software and games. Too bad most of them are just copies).

The only thing I did so far was adding Sound Blaster CT-1320A, although I prefer internal pc-speaker as a sound source on this particular machine.

I must admit that playing Arkanoid or Alley Cat on this beast is a true nostalgic journey.

Reply 1 of 17, by Errius

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How are you getting two drives in one bay like that? Does the chassis have attachment points for the upper one?

Is this too much voodoo?

Reply 2 of 17, by tikoellner

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It's troublesome indeed.

First of all please mind that the bottom drive is in this case only attached with one screw inserted from the bottom of the case.

Then you need an adapter - can be diy. This is just a simple rectangular plate with screw holes to lock the drives together (if you need photo, let me know). I also noticed that the front screw of the top drive locks against the diagonal part of the bay which should stabilise the drive from the left side (the bottom screw uses right rear hole of the drive).

Generally it works and is an official way of doing this kind of manouver, although not really elegant.

Reply 4 of 17, by tikoellner

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I initially thought so because I was told by the seller it was EGA, but it happens to be 5153, so CGA. I hooked it to EGA card and it's quite usable.

Reply 7 of 17, by derSammler

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Nice one. 😀 I own a complete and mint 5150 with CGA as well. Even bought an own desk for it. These are really great-looking machines.

Do you have the original keyboard as well, or did it come with the one in the picture?

Reply 8 of 17, by tikoellner

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This is the saddest part. It came with the keyboard. I disassembed it for cleaning and my lovely (f******) cat dropped the bottom part. It cracked I will need to find some replacement. I'm angry as the keyboard made to survive 30 years with the previous owner and in my hands one day was enough to get it badly damaged 🙁

Last edited by tikoellner on 2017-04-17, 18:48. Edited 1 time in total.

Reply 9 of 17, by derSammler

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Makes me glad that the original keyboard has a bottom part made of steel. Have not dropped it yet, but if I would, it would rather break the floor than the keyboard. 😁

Reply 10 of 17, by tikoellner

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I replaced the bottom with another one salvaged from some blue label I had around. It fits perfectly. There is just some negligible difference in colour.

Reply 11 of 17, by Errius

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You can play Arkanoid with the mouse?

Is this too much voodoo?

Reply 12 of 17, by tikoellner

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Yes, absolutely. In the beginning the game asks you to choose your video hardware (EGA/CGA/Hercules) and your input device (Keyboard/mouse/joystick).

Reply 13 of 17, by chinny22

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I'm guessing by the completeness of the PC the previous owners had it since new?
Its vey nice indeed and working HDD, saves sooo much hassle 😀

Reply 14 of 17, by tikoellner

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Yes, it was purchased by a Polish big beat (Polish term used for Rock'n'Roll) artist (quite renowned) who emigrated to Sweden in late 60s. He bought this computer in Sweden in 1986 and brought it back to Poland. The computer was used, among other things, for midi sequencing. I guess in Poland there weren't many people who could possibly afford an original IBM XT these day.

Nice computer and interesting story.

Reply 15 of 17, by brassicGamer

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Cracking machine, mate. I find these computers really exciting for some reason, as I'm well into the history of computing. And although the 5150 was the first, I prefer the 5160, as there were some big improvements over the PC. The screen looks amazing!

Check out my blog and YouTube channel for thoughts, articles, system profiles, and tips.

Reply 16 of 17, by tikoellner

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Thanks!

So far I:
- installed Nec V20 processor;
- installed RTC clock that goes between U18 ROM and it's socket.

I' still need to get the Lo-tech XT-IDE adapter. I'm also looking for some turbo card (such as Orchid Tiny Turbo), but those seem impossible to find.

Reply 17 of 17, by carlostex

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I agree with keropi do not feed hi res EGA modes.