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  • falter's Avatar
    Today, 02:37 PM
    falter replied to a thread The Sol Prototype Project in S-100
    I've done a bunch more research and it seems that, as far as I can tell, the very first revision of the Sol 'Intelligent Terminal' board never went...
    36 replies | 3514 view(s)
  • falter's Avatar
    Today, 12:18 PM
    I will sign up for this when I get home. He should do some vintage computer related videos.. he would be so much more interesting to me thn LGR and...
    6 replies | 192 view(s)
  • falter's Avatar
    Today, 10:54 AM
    falter started a thread Mod8 in Other
    Was reading about the MCM/70 and was reminded of the MIL MOD8 computer. I'm in board making mode right now and thought it might be fun to make a few...
    0 replies | 37 view(s)
  • falter's Avatar
    Today, 09:07 AM
    falter replied to a thread Quest COSMAC ELF in Other
    I'm going to do that this week. I think it's a good idea given how apparently sensitive the 4016s are. The only reason I'm confident they are a...
    55 replies | 1330 view(s)
  • falter's Avatar
    Yesterday, 03:58 PM
    I'd love to get into DEC but there are way too many people throwing way too much money around with that stuff. I was thinking since minis are so hot...
    7 replies | 153 view(s)
  • falter's Avatar
    Yesterday, 10:26 AM
    I would want it to operate somewhat. But I wondered what the availability of mini parts were vs. micro.
    7 replies | 153 view(s)
  • falter's Avatar
    September 18th, 2017, 09:49 PM
    falter replied to a thread Quest COSMAC ELF in Other
    Didn't Apple 1s use a lot of Fairchild ICs?
    55 replies | 1330 view(s)
  • falter's Avatar
    September 18th, 2017, 08:37 PM
    falter replied to a thread Quest COSMAC ELF in Other
    Got a few minutes. So pin 14 on the upper 4049 goes down to the user-installed header and connects to pin 9 of U8 which connects to the 4023,...
    55 replies | 1330 view(s)
  • falter's Avatar
    September 18th, 2017, 06:14 PM
    I almost bid on this: ...
    7 replies | 153 view(s)
  • falter's Avatar
    September 18th, 2017, 02:11 PM
    I wonder if the story about the disgruntled engineer putting a disk drive time bomb in the ROMs is true.
    5 replies | 186 view(s)
  • falter's Avatar
    September 18th, 2017, 08:26 AM
    Nice! I envy his collection. I do not, with Ontario hydro costs, envy his electric bill though. :) The Hot Wheels and Barbie PCs bring back...
    10 replies | 249 view(s)
  • falter's Avatar
    September 17th, 2017, 09:09 PM
    falter replied to a thread Quest COSMAC ELF in Other
    Didn't get as much time as I'dve liked.. but here is what I was able to quickly trace: Pin 2 on MC14508B goes to pin 15 of the top most 4049 on...
    55 replies | 1330 view(s)
  • falter's Avatar
    September 17th, 2017, 07:22 PM
    If you've some cash lying around.. http://www.ebay.com/itm/172851121752
    2 replies | 137 view(s)
  • falter's Avatar
    September 17th, 2017, 05:42 PM
    For $760??? I've seen a couple of these sell recently and go wanting for opening bids of $250 initially.. I'm guessing the provenance is the big...
    5 replies | 186 view(s)
  • falter's Avatar
    September 17th, 2017, 04:29 PM
    falter replied to a thread Mark-8 Clone Project Begins in Other
    And here's a finished Memory Board Side A: This was one I was really afraid of because of how many and how tightly packed the traces are. But...
    65 replies | 4099 view(s)
  • falter's Avatar
    September 17th, 2017, 12:41 PM
    falter replied to a thread Mark-8 Clone Project Begins in Other
    Think I'm getting the hang of this, sort of! Over time and with tons of (tearful) experience, I have refined my toner transfer process to be...
    65 replies | 4099 view(s)
  • falter's Avatar
    September 16th, 2017, 03:00 PM
    falter replied to a thread Is this a real 680 case? in Other
    Very cool.. thank you. I don't know if I'll go for it. I'm still suspicious on the authenticity front with this. It looks too clean and fresh. ...
    8 replies | 151 view(s)
  • falter's Avatar
    September 16th, 2017, 01:46 PM
    falter replied to a thread Is this a real 680 case? in Other
    Yeah. I don't have the link handy but I saw another purported replica that did have the venting so I wasn't sure. Regardless, I assume finding the...
    8 replies | 151 view(s)
  • falter's Avatar
    September 16th, 2017, 01:17 PM
    falter started a thread Is this a real 680 case? in Other
    I had a look at a few known replicas but some, like Grant's, were so close I couldn't tell. http://www.ebay.com/itm/152699199905
    8 replies | 151 view(s)
  • falter's Avatar
    September 16th, 2017, 07:43 AM
    Saw this on ebay with a $99 buy it now or make offer. Not sure why I needed a third MMD-1, but this one was kind of interesting and I didn't want it...
    0 replies | 95 view(s)
  • falter's Avatar
    September 15th, 2017, 09:32 PM
    The bizarre thing is the pics are exactly the same. If yer gonna run a scam like that.. why not try shots from different angles at least?
    2 replies | 234 view(s)
  • falter's Avatar
    September 15th, 2017, 05:30 PM
    falter replied to a thread Mark-8 Clone Project Begins in Other
    So we have two 'completed' boards now composed of four pieces of 0.030" single side PCB stock. Here are pictures. To the left is the original...
    65 replies | 4099 view(s)
  • falter's Avatar
    September 15th, 2017, 03:33 PM
    falter replied to a thread Quest COSMAC ELF in Other
    Ok I will work on this tonight. I've swapped the 4016s and RAMs around but yeah, only changing the 4016 positions around achieves any difference,...
    55 replies | 1330 view(s)
  • falter's Avatar
    September 14th, 2017, 10:20 PM
    falter replied to a thread Quest COSMAC ELF in Other
    Did a bit more probing. So I think we have two bad 4016s. U14 and U15. Looking at the schematic I can see the switches trigger specific pins on...
    55 replies | 1330 view(s)
  • falter's Avatar
    September 14th, 2017, 08:26 PM
    falter replied to a thread Quest COSMAC ELF in Other
    Tried one more tack: incrementing through the left digits only. So if I do 00 10 20 30 40 50 I get: 04 14 34 34 54 54 It consistently comes out...
    55 replies | 1330 view(s)
  • falter's Avatar
    September 14th, 2017, 08:12 PM
    falter replied to a thread Quest COSMAC ELF in Other
    And same for the test program you gave me: 7A 7B 30 00 yields 7F 7E 36 16 when I read back through the memory contents .. and it does not run.
    55 replies | 1330 view(s)
  • falter's Avatar
    September 14th, 2017, 07:58 PM
    falter replied to a thread Quest COSMAC ELF in Other
    Okay so I did some test programs. First, I tried entering the one from the guide. It was pretty clear that I wasn't getting what was expected on...
    55 replies | 1330 view(s)
  • falter's Avatar
    September 14th, 2017, 12:43 PM
    falter replied to a thread Quest COSMAC ELF in Other
    I will sit down tonight and put it through its paces. It does seem to take data from the switches and hold it.. but whether I'm seeing the right...
    55 replies | 1330 view(s)
  • falter's Avatar
    September 14th, 2017, 08:24 AM
    falter replied to a thread Quest COSMAC ELF in Other
    I was thinking about that but I wondered about the whole 'messing with originality' thing. Plus, I bought another ELF: ...
    55 replies | 1330 view(s)
  • falter's Avatar
    September 14th, 2017, 07:59 AM
    falter replied to a thread Quest COSMAC ELF in Other
    Nice!! I think the PROM on mine might be okay.. I have to get the time to do the checkout procedure fully. And learn how to read hex fron led...
    55 replies | 1330 view(s)
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The Ebay Follies

by falter on June 25th, 2017 at 10:09 AM
All hail the $3000 Apple II+!

http://www.ebay.com/itm/142424958928
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