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Thread: The Mystery Tandy 1000 Model

  1. #21

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    I asked almost exactly the same question nearly a year ago:

    http://tech.groups.yahoo.com/group/T...0/message/1938

    Never have seen one...

    Wesley


    Quote Originally Posted by vwestlife View Post
    Has anyone come across a Tandy 1000SL/E? Apparently the "E" was a special model for the education market -- maybe pre-packaged with an Apple II emulator card, which was a popular option for Tandys sold to schools. It is mentioned in a few Radio Shack documents:

    http://support.radioshack.com/suppor...oc16/16799.htm

  2. #22

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    I just scored a Tandy 1000SL/E on eBay, so the mystery will soon be solved:

    http://www.ebay.com/itm/262135546950

    It uses the 1000SL/2's case, but has a white reset button, like a TL/2 or TL/3. There is no sign of any ISA cards being installed. The RS catalog number is 25-1400.

  3. #23

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    Quote Originally Posted by vwestlife View Post
    I just scored a Tandy 1000SL/E on eBay, so the mystery will soon be solved:

    http://www.ebay.com/itm/262135546950

    It uses the 1000SL/2's case, but has a white reset button, like a TL/2 or TL/3. There is no sign of any ISA cards being installed. The RS catalog number is 25-1400.
    You lucky dog! My ebay saved search has failed me again...

    That is an awesome find. I will be very anxiously waiting to hear what you find in it. Please take and share lots of photos! If you don't have an SL to compare with, I have my SL photos posted at http://www.megley.com/photos/tandy/1000sl I would especially be interested in the date stamp molded into the front cover, as well as board revisions, etc. It is interesting that the catalog # is 1400...the original SL is 1401, and the SL/2 is 1402. Unfortunately, I don't yet own an SL/2 to compare with, but perhaps someone else does, if you don't.

    If you ever decide to part with it, please keep me in mind.

    Thanks,

    Wesley

  4. #24
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    I think he is likely to find a bog-standard SL motherboard, just like the 1000PC.

    I would suggest that the white button may have served two purposes. First to give Tandy's factories a ready way to distinguish the educational SL/E model from the SL for general sales. Second, it gives less of a temptation to school children to press a white button that blends in with the case than a red button that sticks out
    My Retro Computing and Vintage Gaming Blog : http://nerdlypleasures.blogspot.com/

  5. #25

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    Quote Originally Posted by Great Hierophant View Post
    I think he is likely to find a bog-standard SL motherboard, just like the 1000PC.
    Judging by the 3.5" floppy drive, though, it would probably be an SL/2 motherboard... although I don't think there are any major differences between it and the SL besides standard RAM amount and BIOS revision.

  6. #26

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    I always assumed the switch from red to white was just a design change at some point in the process...hard to tell the reasoning for sure I guess, though your guess is probably as good as any.

    If I had to guess, the SL and SL/2 are using the same motherboard. The only difference spec-wise is the floppy drive and 384k for the SL and 512k for the SL/2. Does anyone have an SL/2 they can take some photos of to compare to my SL pictures? We could also compare BIOS versions, though it wouldn't surprise me if they are the same too...I would think the SL would handle a 720k floppy just fine. The SL/2 is on my wish list, but I haven't managed to snag one yet...

    Just thinking back to someone's earlier comment in this thread about the SL/E possibly having the Apple IIe compatibility card in it...the photos would tend to disprove that theory, as I would expect the IIe card would require a 5.25" floppy drive.

    Thanks,

    Wesley

  7. #27
    Join Date
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    The 1000SL and 1000SL/2 may have the same motherboard, just the amount of stock memory and the BIOS chips will be different. The motherboard diagrams in "DCS Upgrading Your Tandy 1000" are identical.

    Tandy did offer the Trackstar 128 for sale in its catalogs in 1988-1990. The ebay auction obviously does not have one installed because the card has ports out the back on its bracket. Considering Tandy was charging $399 at retail, perhaps the school system that bought this figured that PC compatibles were the future and the Apple II was the past and decided against the expensive upgrade.
    My Retro Computing and Vintage Gaming Blog : http://nerdlypleasures.blogspot.com/

  8. #28

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    Quote Originally Posted by Great Hierophant View Post
    The 1000SL and 1000SL/2 may have the same motherboard, just the amount of stock memory and the BIOS chips will be different. The motherboard diagrams in "DCS Upgrading Your Tandy 1000" are identical.

    Tandy did offer the Trackstar 128 for sale in its catalogs in 1988-1990. The ebay auction obviously does not have one installed because the card has ports out the back on its bracket. Considering Tandy was charging $399 at retail, perhaps the school system that bought this figured that PC compatibles were the future and the Apple II was the past and decided against the expensive upgrade.
    Would be interesting to compare BIOS versions... My point on the Trackstar was that it wouldn't be much use without a 5.25" drive to go with it. The vast majority of IIe software was 5.25", and the SL/E has only a 3.5" drive...hence my bet that the /E designation was not due to it having the Trackstar card installed.

    Wesley

  9. #29

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    It could be coincidental, but the Trackstar 128 was replaced with the Trackstar E, which allowed Apple II programs to be run from disk images stored on any MS-DOS disk, rather than running them directly from the original Apple-format floppy disks.

    http://www.applelogic.org/files/ManualTrackstarE.pdf

  10. #30

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    The 1000SL/E arrived today. Unfortunately due to a combination of the seller's inadequate packaging (plenty of bubble wrap on the bottom and top, but nothing on the sides!) and United Parcel Smashers' handling, the front panel got cracked in several places and the front of the metal frame got bent. But with a vice and some superglue I'll be able to repair it.

    The motherboard is revision D and is dated the 17th week of 1990. It powers on and boots up with 640K RAM, BIOS 1.04.04, and MS-DOS 3.30.22 and DeskMate 3.03.00 in ROM (all normal for a 1000SL/2). The Sony 720K floppy drive was disconnected and the speaker was unplugged and loose in the case, with no screws holding it in place. I reconnected the floppy drive and it works but has trouble reading most disks. I'll clean the heads and see if that helps. There are no visible signs that it ever had any expansion cards installed.

    So I pretty much got a standard 1000SL/2 with a different name on the case. But at least I got it at a reasonable price ($50 + shipping) and in working condition with only minor repairs needed.

    Photos:
    http://www.amstereo.org/images/1000sleinside.jpg
    http://www.amstereo.org/images/1000sleboard.jpg
    http://www.amstereo.org/images/1000sledate.jpg
    http://www.amstereo.org/images/1000slerom.jpg
    http://www.amstereo.org/images/1000slebios.jpg

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