Image Map Image Map
Tab Content
  • daver2's Avatar
    Today, 07:20 AM
    daver2 replied to a thread Tektronix 'Board Bucket' 6800 in Other
    Thanks Monty. Yep, I noticed that myself. I have a couple of e-mails to send out tonight to see if more information can be gathered... Dave
    45 replies | 3641 view(s)
  • daver2's Avatar
    October 21st, 2018, 10:01 AM
    daver2 replied to a thread Tektronix 'Board Bucket' 6800 in Other
    I have got a few more DDT commands operational. 100L sets an internal address pointer for subsequent use. "112233 stores the hexadecimal values...
    45 replies | 3641 view(s)
  • daver2's Avatar
    October 20th, 2018, 02:22 PM
    daver2 replied to a thread Tektronix 'Board Bucket' 6800 in Other
    Monty, Thanks for that little gem of knowledge :-)! They are sufficiently similar to get me kickstarted into understanding more of the commands...
    45 replies | 3641 view(s)
  • daver2's Avatar
    October 20th, 2018, 12:42 PM
    daver2 replied to a thread Tektronix 'Board Bucket' 6800 in Other
    Falter, Thanks for the DDT ROM dump. I now have DDT running in my emulator. Trying to document the commands now. I still can't find any...
    45 replies | 3641 view(s)
  • daver2's Avatar
    October 14th, 2018, 05:16 AM
    I am going on a business trip for the week so will not be on VCFED for a while. If I assume that you are not getting any a.c. Volts out of the...
    13 replies | 626 view(s)
  • daver2's Avatar
    October 13th, 2018, 11:30 PM
    daver2 replied to a thread REMEX Paper Tape reader in DEC
    If you are using Kermit, I have seen the command "set flow xon/xoff" and "set flow ?" To query the setting. See...
    35 replies | 1594 view(s)
  • daver2's Avatar
    October 13th, 2018, 11:15 PM
    daver2 replied to a thread Intecolor 2400 in Other
    If the Tektronix Board Bucket looks like it is going to die - can I suggest that you get a dump of the machine code monitor for posterity just in...
    33 replies | 1613 view(s)
  • daver2's Avatar
    October 13th, 2018, 11:34 AM
    I thought I would start simply and find what level you were at... I just want to confirm something please before we move on. In the last post you...
    13 replies | 626 view(s)
  • daver2's Avatar
    October 13th, 2018, 03:27 AM
    So, if you look at J8 (the power connector), you will see it is a 9 pin connector with pin 7 missing (the key way). The pins are numbered: 1, 2,...
    13 replies | 626 view(s)
  • daver2's Avatar
    October 13th, 2018, 03:11 AM
    You may find some of the capacitors awkward to measure the voltage on from the top of the main board. If so, proceed as follows: Meter negative...
    13 replies | 626 view(s)
  • daver2's Avatar
    October 13th, 2018, 02:10 AM
    I have just read your first post in a little more detail. To be clear - the output from the transformer is a.c. voltages and the external green...
    13 replies | 626 view(s)
  • daver2's Avatar
    October 13th, 2018, 02:01 AM
    Just because the voltages are wrong across the devices you are measuring - don't assume the device is faulty... Let us assume that the transformer...
    13 replies | 626 view(s)
  • daver2's Avatar
    October 11th, 2018, 05:42 AM
    daver2 replied to a thread REMEX Paper Tape reader in DEC
    Just got back from a business trip and caught up with your progress - but about to go on another one... Something in my water seems to be telling...
    35 replies | 1594 view(s)
  • daver2's Avatar
    October 8th, 2018, 02:58 AM
    For the reader part - Decitek are still around - http://www.decitek.com/. It looks to me as though the Decitek reader mechanism may have been...
    2 replies | 176 view(s)
  • daver2's Avatar
    October 7th, 2018, 06:15 AM
    daver2 replied to a thread PDP8/m fix before use... in DEC
    The old ones are the best :-)! Glad you're operational again though... Dave
    14 replies | 763 view(s)
  • daver2's Avatar
    October 7th, 2018, 12:02 AM
    daver2 replied to a thread PDP8/m fix before use... in DEC
    My guess would be memory or disk corruption somewhere. It looks like the prompt 'character' has become corrupt. I wonder if they use a string-based...
    14 replies | 763 view(s)
  • daver2's Avatar
    October 6th, 2018, 11:55 PM
    Read the thread entitled "Commodore PET 4016 - REPAIRED!" (The last few parts" where the poster had a keyboard that only had a few keys that just...
    11 replies | 527 view(s)
  • daver2's Avatar
    October 6th, 2018, 12:17 AM
    You can still buy twisted pair ribbon cable - we use it at work. How many cores do you need and what length? If we have something that you can...
    8 replies | 1325 view(s)
  • daver2's Avatar
    October 6th, 2018, 12:01 AM
    daver2 replied to a thread REMEX Paper Tape reader in DEC
    Good going Mike. The number of blocks is just the number of contiguous blocks of core you wish to punch to the paper tape. If you only have 1...
    35 replies | 1594 view(s)
  • daver2's Avatar
    October 2nd, 2018, 06:07 AM
    daver2 replied to a thread REMEX Paper Tape reader in DEC
    There are various websites describing failure modes of ICs. The JEDEC website is pretty much the definitive guide. Manufacturing processess have...
    35 replies | 1594 view(s)
  • daver2's Avatar
    October 2nd, 2018, 05:57 AM
    I suspect this is a Ringlock connector (https://www.ittcannon.com/products/trident-ringlock-(tr)/). We use these a lot at work. I would suspect...
    2 replies | 169 view(s)
  • daver2's Avatar
    October 1st, 2018, 11:51 AM
    daver2 replied to a thread REMEX Paper Tape reader in DEC
    Mike, Did you save E17 at all? Even if you snip it out of the board - if you take care you should be able to still test the device outside of...
    35 replies | 1594 view(s)
  • daver2's Avatar
    October 1st, 2018, 11:41 AM
    daver2 replied to a thread Document scanning in DEC
    Thanks for sharing that - it looks a really useful document from what I have read so far. Dave
    5 replies | 371 view(s)
  • daver2's Avatar
    September 30th, 2018, 11:59 AM
    daver2 replied to a thread REMEX Paper Tape reader in DEC
    Welcome back Mike. Putting the 'T' away for the winter break? Dave
    35 replies | 1594 view(s)
  • daver2's Avatar
    September 30th, 2018, 11:55 AM
    My son is at university where he set-up some very expensive 3D printers - so the service came for free for me! The university also paid for the...
    16 replies | 883 view(s)
  • daver2's Avatar
    September 30th, 2018, 10:12 AM
    If you didn't see my previous thread a while ago - my son 3D printed me a full set of handles (excuse the poor photography) - see...
    16 replies | 883 view(s)
  • daver2's Avatar
    September 30th, 2018, 09:58 AM
    daver2 replied to a thread Tektronix 4052 emulator. in Other
    I was going to get around to looking at the BASIC source code - so I spent a little time this afternoon having a look. The FCxx and C7xx are...
    37 replies | 1875 view(s)
  • daver2's Avatar
    September 29th, 2018, 03:22 PM
    Get the software downloads first and worry about the disk geometry later. http://apple2online.com/index.php?p=1_49_CPM-Library ...
    3 replies | 338 view(s)
  • daver2's Avatar
    September 29th, 2018, 09:51 AM
    Just to clarify the information on this webpage: The 'xxxx' will be replaced by a 4-digit hexadecimal address that is related to where DEBUG is...
    56 replies | 1915 view(s)
  • daver2's Avatar
    September 25th, 2018, 10:48 PM
    Good news you are working now. I note that their website had software for DOS, pre-Vista and Vista onwards. i suspect both the latter downloads...
    20 replies | 640 view(s)
More Activity
About daver2

Basic Information

About daver2
Location:
UK - Worcester
Occupation:
SW/HW design engineer

Statistics


Total Posts
Total Posts
2,010
Posts Per Day
0.87
General Information
Last Activity
Today 07:21 AM
Join Date
June 19th, 2012
Referrals
0

3 Friends

  1. GanjaTron GanjaTron is offline

    Senior Member

    GanjaTron
  2. nockieboy nockieboy is offline

    Senior Member

    nockieboy
  3. Zetopan Zetopan is offline

    Junior Member

    Zetopan
Showing Friends 1 to 3 of 3