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  1. I suppose we could add Patriot to the worst brand...

    I suppose we could add Patriot to the worst brand list. When my wife and I were young and foolish, we bought her a Barbie PC. Like so many, she was seduced by the cute look of the thing, and the...
  2. Best? I still favour SWTPC. They never forgot...

    Best? I still favour SWTPC. They never forgot the hobbyists who brung em.

    Worst? NIC. What was Larry Ellison smoking?
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    Found it. It was one of the 33uf tantalums...

    Found it.

    It was one of the 33uf tantalums near the memory. I settled on a strategy of removing one leg of each at a time until the short was gone.. and then removing the suspect cap and testing...
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    So the issue does appear to be on the main board...

    So the issue does appear to be on the main board somewhere. When I tested for shorts from the 7812 output to ground with the psu board attached it found a short. When I removed the board and tested...
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    Thanks Gents. I didn't realize a 7812 had enough...

    Thanks Gents. I didn't realize a 7812 had enough 'brains' to do a shutdown mode.. I assumed it would just do its thing and whatever was shorted would simply blow up.

    I will start looking for...
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    7812 not putting out 12v

    Not really sure what the problem is here. I have an Exidy Sorcerer 2 that I checked out the power supply on, and found that the 7812 regulator was receiving +19V but only putting out +1V on the...
  7. Thread: the Singulariy

    by falter
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    I got into an argument somewhere about the...

    I got into an argument somewhere about the distinction between vintage and retro. I still think of retro as RE-creating something - a machine, an experience, etc.. whereas vintage is the original. ...
  8. It's kind of scary isn't it? Like I was doing...

    It's kind of scary isn't it? Like I was doing this stuff just yesterday and now *blink* it was 30 years ago. I don't think I ever boosted the RAM on my 286. I remember having trouble with SIMMS...
  9. Okay I don't get this. I had this PC *totally*...

    Okay I don't get this.

    I had this PC *totally* unplugged, battery removed.. the whole nine yards... and it *still* retained the settings I put in yesterday?!?

    Other weird stuff. There are 8...
  10. Interesting. I changed the SIMMS around. I am...

    Interesting. I changed the SIMMS around. I am borrowing from an IBM memory expansion card thst came with my XT286, one that I presumed was not working. It had mostly the same density 256kb modules...
  11. Haha.. well, actually the herd has thinned a bit...

    Haha.. well, actually the herd has thinned a bit as I have sold some more stuff. But this machine I've had for a while.. just never bothered with it. I like thr plain case design, and it seems to...
  12. Wow they still sell the replacements.. tadiran...

    Wow they still sell the replacements.. tadiran tl5242w.
  13. Intel 386 with Phoenix 1.3 BIOS - config error

    Hi there,

    So I have this Intel-branded 386 PC. I think it was a reference design - the labels suggest it was part of a custom run for some application or other. I believe it's a 386SX and the...
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    Yeah I just wondered if these comparison metrics...

    Yeah I just wondered if these comparison metrics they put up actually did anything beyond inform. I make the mistake of cruising reddit and reading all these theories about how videos go viral, or...
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    Coming from you that is a huge compliment. Thank...

    Coming from you that is a huge compliment. Thank you!! Although if you look closely you can sometimes see little issues like 'see through pixels and such. I haven't quite figured out if the trick...
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    I'm no anti-vaxxer and thanks to the general...

    I'm no anti-vaxxer and thanks to the general incompetence of Canadian governments don't have access anyway, but I must confess to being a little apprehensive about this. I think it is just the speed...
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    New question: how much does your video's initial...

    New question: how much does your video's initial release stats matter? Like in Studio, if analytics are showing your video not doing as well as the average in the first 24 hours.. does that cause...
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    How double sided PCBs were made

    I just got an original SWTPC keyboard - the first design featured in Don Lancaster's Popular Electronics article. Prior to getting this keyboard, a gentleman had sent me an original popular...
  19. Do they power up to a black or solid colour...

    Do they power up to a black or solid colour screen? That's what both of mine do.
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    The room has humidity control - RH is around 40%....

    The room has humidity control - RH is around 40%.

    I have plastic storage bins for cables and stuff. But the whole purpose in having a large collection was to have it visible. To impress the...
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    Keytronic keyboard w/power?

    Curious about this one: https://www.ebay.com/itm/Unique-Vintage-KeyTronic-magnetic-reed-switch-Keyboard-in-massive-case/164722923182

    I think the mech keyboard heads are on it, but I thought it...
  22. Thread: Rl-21 led

    by falter
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    Rl-21 led

    I am just researching parts I will need to finish this Altair. In the parts manual they mention the front panel LEDs as being 'RL-21'. Google is useless on this one as RL-21 is a popular part...
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    Thank you! Yeah this wouldn't be copy...

    Thank you! Yeah this wouldn't be copy protection.. this is a disk that was made by a fellow that was helping me figure out how to boot up and use the sign. It's just a standard DOS disk with...
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    Winimage question

    I am trying to make an image of a boot disk for my JVF Signboard (pics here) before it dies.

    The disk seems to read fine, I can copy all files off. But when I run winimage (ver 6), after it (I...
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    Many thanks! That is a most useful photo! I...

    Many thanks! That is a most useful photo!

    I might be game to desolder that cap and see what happens.. my Tek 4051 had some shorted tantalums and wouldn't operate.. but when removed it worked...
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