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Type: Posts; User: w9gb

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  1. Replies
    18
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    2,464

    Heath version was HS-151. Excellent Kit...

    Heath version was HS-151.

    Excellent Kit Assembly Manuals for Heathkit applies to
    the Zenith same “ZF” models for the first few years after Zenith bought Heath Company.
    ==
    Product Numbering...
  2. Any left ? g. beat

    Any left ?

    g. beat
  3. Thread: Morse-Baudot

    by w9gb
    Replies
    24
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    2,161

    As G4UGM noted, no system for Decoding CW was...

    As G4UGM noted, no system for Decoding CW was fool-proof.
    Even when the other station was keyboard/computer sending CW (Morse), the QRN (atmospheric static) and QRM (interference from SW broadcast...
  4. Thread: Morse-Baudot

    by w9gb
    Replies
    24
    Views
    2,161

    I have seen this board listed on eBay during the...

    I have seen this board listed on eBay during the summer (several months).

    From the 1970s to mid-1980s there were a variety of Morse/Bardot products (discrete & IC designs),
    before the usage of...
  5. Replies
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    749

    The switches appear at surplus outlets, eBay,...

    The switches appear at surplus outlets, eBay, Jameco, and sometimes Amazon (surprise).
    Since you are in northern California, Al Lashers in Berkeley should be on your list.
    http://allashers.com/
    ...
  6. Replies
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    940

    The Teac FD-55GFR is the most capable drive in...

    The Teac FD-55GFR is the most capable drive in the Teac FD-55 series, able to read disks written by all other models in the series, and write to many of them as well. ...
  7. Replies
    0
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    324

    Photos of HP 13270-60003 Cable

    I am looking for clear photos of the HP 13270-60003 cable and terminations (card edge connector & hood).

    The HP 13270-60003 cable (1.2m) was used to connect HP 264x terminals to its 5.25” floppy...
  8. Replies
    10
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    1,904

    It sounds like you are going to 3D print...

    It sounds like you are going to 3D print replacements for the original Altair card guides.

    Mike Douglas (dramp5113) has developed the Altair 8080c.(clone)
    IF you have damaged 4-slot boards, this...
  9. Replies
    17
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    9,548

    Geoff - The IBM 3740 was released in 1973 and...

    Geoff -

    The IBM 3740 was released in 1973 and featured the first usage 8” floppy drives/media (first standard). IBM 3740 format 8-inch SSSD disk 241Kb (77 tracks, one head, 26 each 128 byte...
  10. Visual Communications (VCC) has a number of LED...

    Visual Communications (VCC) has a number of LED mounting solutions/accessory products.
    VCC was a spin-off of the old Chicago Miniature Company.
    https://vcclite.com/product-category/accessories/
    ...
  11. Replies
    17
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    9,548

    Michael Louie (Microcomputer Solutions) was based...

    Michael Louie (Microcomputer Solutions) was based in Rialto, CA


    Geoff -
    Very familiar with the IBM DisplayWriter and the IBM 6360 Dual 8” Floppy Drive Cabinet (often called “The Toaster”)....
  12. Replies
    6
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    1,194

    The TEI chassis the MicroFrame ?...

    The TEI chassis the MicroFrame ?
    https://maben.homeip.net/static/S100/TEI/photos/TEI%20Microframe.JPG
  13. Replies
    21
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    4,187

    YouTube member: jpkiwigeek is located about 90...

    YouTube member: jpkiwigeek
    is located about 90 minutes to SouthWest (west of Iowa City) ... he may be interested in these.
    He was working on retrieving data from a former-NASA Cray system, last...
  14. Replies
    15
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    3,782

    Scott Ware picked up that Micro Expander computer...

    Scott Ware picked up that Micro Expander computer (free) in 1997,
    from a local computer store near Evanston, when he was at Northwestern University.

    The original Micro Expander computer was...
  15. Thread: Altair cards

    by w9gb
    Replies
    20
    Views
    3,042

    Jean-Luc (k1atn) -- YES, the Ademco 685...

    Jean-Luc (k1atn) --

    YES, the Ademco 685 Digital Alarm Receiver used the S-100 computer bus and
    the California Computer Systems (CCS) 2810 2/4 MHz Z-80 CPU board,
    without the MOSS2.2 Monitor...
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