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 Restoring my XT View next topic
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Skyfrog



Joined: 01 Oct 2006
Posts: 19
Location: USA

PostPosted: Wed Mar 09, 2016 7:58 pm Reply with quoteBack to top

So yesterday I got vintage computer fever again and dragged my old XT out of the storage building where it has sat for ten years. I wasn't sure it would work after all the freezing winters and hot summers out there but it started right up. Unfortunately the second floppy drive is now dead and there are some things I'd like to do.

First up, the noise. I'd forgotten how ridiculously loud the power supply fan on this thing and is, and I began wondering if it might be possible to replace it with a nice modern, quiet fan. If so what type would be best to use? If nothing else I may need to oil it as it sometimes makes a really high pitched and annoying whine.

Second I was looking at floppy drives and came across the HxC floppy emulator. This would be nice since I could run all of my software from a flash drive instead of trying to get it onto 360k disks, and I've also found that quite a few of my old disks are no longer readable. They are all half height drives though so I would need a bay adapter of some sort, unless it is possible to somehow connect the floppy emulator to the external floppy port and put it in a nice little case. An alternative I found would be one of those CF adapters that plug into an 8-bit slot. I could then use it as a hard drive. Any recommendations?

Finally just a minor cosmetic issue but the little screw covers for the top of my 5151 monitor have gone missing. I've been watching ebay but I have never seen any, not sure where I could get some replacements. Anyway I guess that's all for now, I'm going back to my game of Castle Adventure. Smile
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T-R-A



Joined: 02 Oct 2004
Posts: 565
Location: Western NC

PostPosted: Thu Mar 10, 2016 5:49 am Reply with quoteBack to top

Skyfrog wrote:
An alternative I found would be one of those CF adapters that plug into an 8-bit slot. I could then use it as a hard drive. Any recommendations?


You mean this?:

https://www.lo-tech.co.uk/wiki/XT-CF-lite_rev.2
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Skyfrog



Joined: 01 Oct 2006
Posts: 19
Location: USA

PostPosted: Thu Mar 10, 2016 4:04 pm Reply with quoteBack to top

T-R-A wrote:
Skyfrog wrote:
An alternative I found would be one of those CF adapters that plug into an 8-bit slot. I could then use it as a hard drive. Any recommendations?


You mean this?:

https://www.lo-tech.co.uk/wiki/XT-CF-lite_rev.2


Yes, that is the type of card I was thinking of, thanks for the link. I think that might be the easiest way to get my software on it and still have it look original.
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T-R-A



Joined: 02 Oct 2004
Posts: 565
Location: Western NC

PostPosted: Thu Mar 10, 2016 11:40 pm Reply with quoteBack to top

Skyfrog wrote:
Yes, that is the type of card I was thinking of, thanks for the link.


Realize they only offer the PWB. From the page:

https://www.lo-tech.co.uk/product/xt-cf-lite-rev-2-pcb/

"This product requires the separate purchase of components and home assembly; a soldering iron, solder and flux are needed to assemble the adapter. Image of assembled board is provided for reference."

So you'd still need to find the components and be very proficient at SMT-soldering techniques. I do it every day and can tell you that the card slot will not be an easy thing to solder without experience and the proper equipment. Just saying "I can solder" or "I've soldered stuff before" just won't cut it.
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Skyfrog



Joined: 01 Oct 2006
Posts: 19
Location: USA

PostPosted: Fri Mar 11, 2016 4:38 pm Reply with quoteBack to top

True, I certainly don't have the equipment or experience for surface mount soldering so that's out. I found one assembled on ebay but the price is pretty steep so maybe I will just get one of those HxC or GoTek floppy emulators and a bay adapter, or just get another floppy drive to replace the old one and set up another system with a 360k drive to write disks for it. Using real floppy disks and swapping them out to load stuff is really part of the fun anyway.

I read up on the fan and apparently the original runs on 120v so it won't be as easy to swap out as I thought. Maybe I'll just lubricate the old one and leave it be.
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T-R-A



Joined: 02 Oct 2004
Posts: 565
Location: Western NC

PostPosted: Sat Mar 12, 2016 10:58 pm Reply with quoteBack to top

You may also want to look at this:

http://www.minuszerodegrees.net/5150/problems/5150_known_problems_issues.htm

Specifically the part under "Hard disk drive"
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Skyfrog



Joined: 01 Oct 2006
Posts: 19
Location: USA

PostPosted: Thu Mar 31, 2016 7:55 pm Reply with quoteBack to top

Thanks, I think mine was the very last revision they made for it. 1986 BIOS, full 640K of RAM and I've tested 720k 3.5" floppy drives on it and they work. I like the CF cards though in the "modern options" link, I've been keeping an eye out for them, and I'm thinking of getting something like one of these to replace the old fan. They are supposed to be much quieter.

http://www.amazon.com/AC-Infinity-AXIAL-Muffin-Cooling/dp/B009OXTWZI

Edit: Hmm, well I'm glad I didn't order anything yet. I opened up the power supply just to check it out and it's not 120V at all, it's a 12 volt DC Panaflo fan.
That will certainly make it easier to replace, I'll just get a nice quiet 80mm 12v fan to replace it. I wonder when they changed from 120v AC fans to 12v DC.
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