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  1. https://www.liveauctioneers.com/item/86804145_swed...

    https://www.liveauctioneers.com/item/86804145_sweda-750-computers-and-vintage-electronics

    Quite a bunch of Diablo drives. The Entrex system look like some kind of DG Nova rebrand ?
  2. Saw this 24k 4051 memory board on EBay....

    Saw this 24k 4051 memory board on EBay. https://www.ebay.com/itm/48pcs-TEKTRONIX-MOTOROLA-MCM6605AL-PURPLE-GOLD-TOP-VINTAGE-1977-IC-S-MEMORY/353117861256

    Not really related to multifunction...
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    I put DDDRV.MAC on my drive...

    I put DDDRV.MAC on my drive so that anyone else can have a look. But I couldn't find LB:[104,10]ETU58.CNF in my installation of RSX11-M 4.6.
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    The retries is really strange since I know that...

    The retries is really strange since I know that when reading tapes under RT-11 I have seen retries. It is a quite distinct sound when the drive do a retry so you cannot miss it. When reading now it...
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    Hmm. That is incredibly weird since it happens...

    Hmm. That is incredibly weird since it happens for one block reads.

    Maybe one need to use Ersatz-11 and configure the serial port as a real serial port and see how that works with the DD device....
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    I did a quick check of the DD.MAC...

    I did a quick check of the DD.MAC file. But to me it looks like it all errors are fatal? A bit harder than I thought to get the grip of how it handles errors. Not much comments in the code.
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    Yes. I did check the manual and as you say,...

    Yes. I did check the manual and as you say, nothing mentioned about -126. That would correspond to 202 octal or 10000010 binary. Maybe a disassembly of the code in the TU58 controller could tell. Or...
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    Ok. I have tried now with real hardware and it...

    Ok. I have tried now with real hardware and it appears to work. I took your code and quickly added my wrapper. Removed all RX02 stuff and voila, the simple test program was running. It could do...
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    Here are a few TU58 which I think has Files-11...

    Here are a few TU58 which I think has Files-11 FS:

    https://drive.google.com/file/d/1u0JAw3MFg63VejRdd4mPU5z3-u93ISXl/view?usp=drivesdk
    ...
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    Looked quickly at your tu58_driver.c code. It...

    Looked quickly at your tu58_driver.c code. It indeed look very promising. I have a wrapper for running Arduino code on a Linux host for testing purposes which I can use to run it straight away I...
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    I have approximately 80 TU58 tapes left to dump....

    I have approximately 80 TU58 tapes left to dump. Mostly 11/730 and 11/750 diagnostic and console tapes. Not sure if there are dumps of them already. They come from an ex DEC field service engineer....
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    Retrieving all the blocks of a physical TU58...

    Retrieving all the blocks of a physical TU58 cartridge and store them into a file on the host computer so that I can use them in SimH and or tu58em.
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    TU58 dump tool?

    Is there anyone that has built a tool already do dump TU58-tapes on a Linux machine?

    There is PUTR of course. But it is DOS only and is written in assembler so it cannot be ported easily. The...
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    Cromemco software on Ebay.

    Not mine.

    https://www.ebay.com/itm/203014799203
  15. I have recovered approx forty TU58 formatted...

    I have recovered approx forty TU58 formatted DC100 tapes. Didn't bake them. No shedding. But prior to removing the existing band I heated it with a heatgun set to 100 degrees celsius (at some...
  16. On the plastibands package it says manufactured...

    On the plastibands package it says manufactured in Japan. As far as I can see the sizes are not matching:...
  17. Maybe 4 1/2 inch is too long? I used the variety...

    Maybe 4 1/2 inch is too long? I used the variety that is approx 3-5/8" or 90 mm when doing DC100, they work fine for me. https://us.misumi-ec.com/vona2/detail/223000860382/?HissuCode=MB-9033TA-100G
  18. Not really. In the thread Al linked above I point...

    Not really. In the thread Al linked above I point out that these are called Mobilion bands and are made by Japanese company Nisshinbo. They can be purchased in packs of 135 from Misumi:...
  19. I am interested in the 8 inch cats eye disk. And...

    I am interested in the 8 inch cats eye disk. And possibly the other eigth inch disks if you could provide a photo off them.

    /Mattis
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    Yep. That is the schematic I scanned. I posted it...

    Yep. That is the schematic I scanned. I posted it to cctalk last year, but forgot to cc Al Kossow. So it didn't end up bitsavers apparently. Got to fix that. It was an ex DEC field engineer that gave...
  21. You can use whatever register I guess. 74175 is...

    You can use whatever register I guess. 74175 is four bits. DEC often use 7489 for the register file. 16 registers in one chip. Another option is the 74170/74670 which has separate read and write...
  22. Now this probably getting ridiculous but what I...

    Now this probably getting ridiculous but what I was saying is that DEC made packages of what they sold. They sold system options which they called the PC8-E, PC11, PC15 etc, which in its turn...
  23. Sorry, not entirely convinced. Check the PDP-15...

    Sorry, not entirely convinced. Check the PDP-15 price list. Not a single mention of the PC05. But instead the PC15. Which is the packaged solution of a few cards (M705, M710, M715) in the CPU and the...
  24. I am not sure that it is that easy. As far as I...

    I am not sure that it is that easy. As far as I remember it says PC11 AND PC05 on the tags of the reader/punch and PC04 AND PC8E on the reader punch for my 8/a. So PC11 is the system option in total,...
  25. Yes. Very much possible. But you need to pull out...

    Yes. Very much possible. But you need to pull out the existing CPU since they would compete for certain signals. You probably need to make it mimic the IOP pulsen and state very closely in the FPGA....
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