Image Map Image Map

Search:

Type: Posts; User: gekaufman

Page 1 of 8 1 2 3 4

Search: Search took 0.01 seconds.

  1. Replies
    5
    Views
    90

    I have a BK867C programmer, and 74S287's (256x4...

    I have a BK867C programmer, and 74S287's (256x4 TS) that should be equivalent.

    Happy to program, but I'm in the USA so shipping may be costly....

    - Gary
  2. Replies
    18
    Views
    3,350

    Rich - I also have two of the Micromint Z8...

    Rich -

    I also have two of the Micromint Z8 basic boards, and probably have the documentation here too. The psudostatic ram was an interesting feature of that board.

    BTW, There's a nice Z8...
  3. Replies
    38
    Views
    69,319

    I've had a few emails lately asking about PC...

    I've had a few emails lately asking about PC boards and assembled units. I got a bit carried away and ordered/built up a batch of these with 3D printed cases etc. I still have some spares if anyone...
  4. Thread: Fluke TK80A

    by gekaufman
    Replies
    3
    Views
    360

    I have the same board and searched for...

    I have the same board and searched for documentation unsuccessfully (except for the manuals mentioned by others here). If you do find anything please let me know!

    My board does appear to function...
  5. Replies
    6
    Views
    468

    Google image search is your friend.... Image...

    Google image search is your friend....

    Image was copied from another location, clearly a scam (as if there was ever any doubt).
    ...
  6. The IBM Thinkpad T42 also works nicely. I've...

    The IBM Thinkpad T42 also works nicely.

    I've never been able to use the EMP20 with anything but a "real" LPT. No luck with any of the Needham programmers and the USB<-->LPT adapters.

    - Gary
  7. Replies
    8
    Views
    696

    I located my spare PB10 87xx adapter board, a...

    I located my spare PB10 87xx adapter board, a picture is attached.

    This board supported 8751's, 7742's, 8748's, 8755's etc. I believe it was a later design than the single 8751 adapter you...
  8. Replies
    8
    Views
    696

    Dwight - I do have an 8748 adapter, but no...

    Dwight -

    I do have an 8748 adapter, but no schematic. I think I have a spare, but couldn't easily locate it last night. I'll keep looking, if I do have a spare I certainly don't need two.

    I...
  9. Replies
    8
    Views
    696

    I found a print-out of the schematic. The...

    I found a print-out of the schematic. The original file might be on one of the 5.25" disks but I'll have to pull out an older system to look.

    I scanned the printout to...
  10. Replies
    8
    Views
    696

    I’m pretty sure that Needham did release the...

    I’m pretty sure that Needham did release the schematic for the PB10. They were a great company to deal with, but sadly no longer in business (the current owners have the name but don’t really...
  11. Replies
    30
    Views
    2,342

    Interesting parts, also equivalent to WS57C49,...

    Interesting parts, also equivalent to WS57C49, very fast. Looks like they were really intended to replace bipolar proms as the pinout Is different.
  12. Replies
    30
    Views
    2,342

    I've never heard of/seen the 68765. Does it...

    I've never heard of/seen the 68765. Does it exist?

    The Needham's EMP30/31 and BK867C will handle the 68764 and 68766.
  13. Replies
    30
    Views
    2,342

    If you have a way to program them, the Motorola...

    If you have a way to program them, the Motorola type 68764 or 68766's are an 8Kx8 EPROM that will directly substitute for many mask ROMs.
  14. Replies
    4
    Views
    412

    Look at John Monahan's site www.s100computer.com...

    Look at John Monahan's site www.s100computer.com

    John has released serial, parallel and video cards. Bare cards are available. No composite video, but the Propeller VGA card is easy to build and...
  15. Replies
    25
    Views
    1,633

    Matthew D’Asaro designed a very nice power supply...

    Matthew D’Asaro designed a very nice power supply load. http://www.dasarodesigns.com/product/pc-at-ps2-power-supply-load-tester/

    Well worth building.

    - Gary
  16. Replies
    8
    Views
    896

    The other board is an IMSAI PIC-8. If the SD...

    The other board is an IMSAI PIC-8.

    If the SD systems Z8800 is the board with the modification it may be a known update to correct a DMA problem.

    - Gary
  17. Replies
    4
    Views
    943

    Actually lots of replies on the S100 Forum ...

    Actually lots of replies on the S100 Forum

    https://groups.google.com/forum/#!forum/s100computers
  18. Replies
    34
    Views
    2,737

    I have a TL866A. The TL866A has the ICSP header...

    I have a TL866A. The TL866A has the ICSP header and TL866CS does not, otherwise the devices are identical.

    Its a cute programmer and for the low price difficult to beat. It also will do some...
  19. Replies
    34
    Views
    2,737

    Sorry, didn't notice your location. The...

    Sorry, didn't notice your location.

    The BK867C is actually made by Elnec in the EU. I believe it's the BeeProg2. Expensive option, but it is currently being manufactured and supported. It does...
  20. Replies
    34
    Views
    2,737

    My BK 867C will program the 82S100, but...

    My BK 867C will program the 82S100, but unfortunately requires a 70-0424 adapter that is $155.

    https://www.dataman.com/module-pld-1.html

    If you provide the adapter I'd be happy to program up...
  21. Replies
    9
    Views
    955

    Where in NH? I'm in Amherst... - Gary

    Where in NH? I'm in Amherst...

    - Gary
  22. Replies
    23
    Views
    11,327

    I've had horrible luck with 28C64 and 28C256...

    I've had horrible luck with 28C64 and 28C256 EEPROMs from China. Almost all are blacktopped or ground down and then remarked. The true access time and manufacturer is a crap-shoot.

    If you're...
  23. Replies
    31
    Views
    4,037

    The Zeta is a very slick design and well...

    The Zeta is a very slick design and well supported.

    As Sergey pointed out the Z80 in that kit is counterfeit, and the FDC provided is useless for the Zeta.

    The Z80's from China are all...
  24. Replies
    12
    Views
    1,650

    B&K 867C arrived, and I successfully copied and...

    B&K 867C arrived, and I successfully copied and programmed some Tesla 74S571's last night. It's a very nice programmer and the software is well done.

    - Gary
  25. Replies
    6
    Views
    616

    Or even less.... ...

    Or even less....

    http://www.vcfed.org/forum/showthread.php?15907-AT-to-XT-Keyboard-Converter&highlight=at2xt
Results 1 to 25 of 177
Page 1 of 8 1 2 3 4