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Thread: Compaq SLT Chargers?

  1. #1
    Join Date
    Oct 2016
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    Default Compaq SLT Chargers?

    So, I'm looking into plan Bs in case my sPORT SX plan fails and I'm considering Compaq's early true laptop fare. I like the SLT 386s/20's oddball design, but that power connector looks nuts. Are chargers hard to come by?
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  2. #2

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    You can't go wrong with an SLT. They are vintage laptop perfection in my opinion. Reliable, easy to service and very cool looking! I've got 6 of the damn things now and still looking for two more of the variations (there were a lot of small changes to them throughout production, and I want them all damnit!).

    Yes, the chargers are hard to find by themselves. I highly recommend just purchasing one that already has the charger with it. You can power them through the battery terminals, but that can be cumbersome.

    Also, be prepared to cut into a Dallas clock chip if you want the machine to boot from the hard drive.

    Lastly, don't be fooled by the fools on eBay trying to ask $500 to $1000+ for these things. Those have all been on there for YEARS, and these machines aren't worth those numbers. The SLT 386s/20 is also not nearly as rare as it's made out to be sometimes. In fact, it's really no less common than the SLT/286. NONE of the SLTs are rare; they made lots of them. And since they are reliable, a lot of them still exist today, which I love, because I don't like having to track down rare parts to fix a machine.

    I'd say one is worth about $100 MAX. And that should be in good condition with the AC adapter. And about $60 or less in good condition WITHOUT the AC adapter. Not counting shipping of course; these things are heavy.

    Hope this helps and good luck!
    Compaq - “It simply works better”

  3. #3
    Join Date
    Oct 2016
    Location
    Illinois, USA
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    Default

    Thanks for the pointers! As for the RTC, luckily I know a good source of 1287 replacements. Speaking of batteries, any luck recelling the mains? I want the machine I end up with to be a long-term project with the end goal of making something travel ready.
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  4. Default

    Quote Originally Posted by compaqportableplus View Post
    Also, be prepared to cut into a Dallas clock chip if you want the machine to boot from the hard drive.
    Can confirm, mine would only boot from diskette despite the HDD being auto-detected in BIOS until I cut into the RTC (Here's a video of disassembly and a glimpse of my hack job https://www.youtube.com/watch?v=nVkarBW37hg )

    I recorded myself cutting into the chip in-place (no not really recommend), too. But I still have to edit the video

  5. #5
    Join Date
    Oct 2016
    Location
    Illinois, USA
    Posts
    470

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    Quote Originally Posted by EkriirkE View Post
    Can confirm, mine would only boot from diskette despite the HDD being auto-detected in BIOS until I cut into the RTC (Here's a video of disassembly and a glimpse of my hack job https://www.youtube.com/watch?v=nVkarBW37hg )

    I recorded myself cutting into the chip in-place (no not really recommend), too. But I still have to edit the video
    I was considering just swapping in one of Glitchworks' 12887 replacements since it sounds like the 128's backwards compatible in most cases. Any thoughts on that plan?
    General Failure Reading Drive C -
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  6. Default

    Quote Originally Posted by MrArgent View Post
    I was considering just swapping in one of Glitchworks' 12887 replacements since it sounds like the 128's backwards compatible in most cases. Any thoughts on that plan?

    I've never used it, and they mention some (industrial) systems insist on a true 1287 vs a 12887. Sounds like a crapshoot

  7. Default

    Here's that video of chopping up the RTC to add a battery https://youtu.be/qUNdTUPj_us

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