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  1. Curiousmarc on YouTube has several detailed...

    Curiousmarc on YouTube has several detailed videos concerning the IBM 1401 system and the 729 tape drive. He participated in their restorations.

    His home YT page: ...
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    It looks to me that there are at least TWO...

    It looks to me that there are at least TWO systems here. I see ICT tape drives - the ones with the tape reels vertically (one over the other) and I see Honeywell disk drives and Honeywell tape...
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    "CE" means "customer engineer" and is someone,...

    "CE" means "customer engineer" and is someone, generally employed by the equipment manufacturer such as IBM, who visits customer sites to maintain and/or repair equipment if it is/was leased or if...
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    Indeed on BOTH points.

    Indeed on BOTH points.
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    ...and I have a pretty good idea of what...

    ...and I have a pretty good idea of what happened, too.
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    Never mind... someone else bought it 30 minutes...

    Never mind... someone else bought it 30 minutes ago while I was researching this. Dang it to heck!!!
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    IBM 3179 Model 000

    I'm looking at an IBM 3179 (apparently coax) terminal for sale, and the IBM-printed tag on the logic unit says:

    I.D. NO 3179 D2617
    PART NO 5954160
    DATE 10/85
    MOD 000
    PLT 88

    Model 000? I'm...
  8. Al, This guy knows the 3278 keyboard protocol...

    Al,

    This guy knows the 3278 keyboard protocol since he has built a 3278 to PS/2 keyboard converter. The details of the 3278 keyboard protocol are buried in his C code (which is freely available...
  9. Alternate keyboard for IBM 3278 terminal?

    Has anyone ever tried building a converter/adapter to allow a 122-key model M keyboard to be attached to a keyboardless IBM 3278 terminal?

    I can't find the specifications...
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    Your end goal is what I was trying to do, but I...

    Your end goal is what I was trying to do, but I was going to use an actual 3174. Things were going well until I bought an IBM 3278 on eBay but discovered that it had no keyboard when it arrived. ...
  11. I bought quite a few model M keycaps several...

    I bought quite a few model M keycaps several months ago from this seller for my IBM 3151 terminal and I was very satisfied with them:
    ...
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    Just curious about what you are wanting to...

    Just curious about what you are wanting to achieve. Are you wanting to connect a 3278/3279 to a modern system and use it as some sort of console?

    BTW, from what I understand the disk drive in the...
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    I agree that Unicomp's model Ms are not junk. I...

    I agree that Unicomp's model Ms are not junk. I have a Unicomp Classic 104 Black, P/N UB40446, that I bought back in 2008. I have been extremely impressed with it. I've used it continuously since...
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    Really... how interesting. I thought that I was...

    Really... how interesting. I thought that I was only one of three people in the world wanting to do that.

    Right - I don’t want to run 3270 emulation. I know of a more modern IBM coax terminal...
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    Yes, I am painfully aware of this craze going on....

    Yes, I am painfully aware of this craze going on. I have a really bad feeling in my stomach that this was NOT the time to try to launch this project of mine. I want to get this terminal connected...
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    Hi NeXT, Yes, I surely understand this. What...

    Hi NeXT,

    Yes, I surely understand this. What proof would I need to provide? I can take any specific photos requested, and provide email confirmations of my recent purchase and shipment of my...
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    IBM 3278 Keyboard Needed

    I have an apparently working IBM 3278 mod 2 terminal that has no keyboard. I need a working keyboard.

    If anyone still has one that hasn't been sold to the keyboard modders and want to sell it...
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    There is a wealth of information in this...

    There is a wealth of information in this bitsavers.org directory:

    http://www.bitsavers.org/pdf/ibm/3270/

    This document gives a good, basic and concise description of the basic 3270 protocol...
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    Thanks, Al!

    Thanks, Al!
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    Mystery IBM CE Panel

    Hey,

    Can anyone identify the panel in this eBay listing?
    ...
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    It's alive!!! The null modem cable did the...

    It's alive!!!

    The null modem cable did the trick. Thanks, gslick!

    Here are some pictures of its first communications, on the terminal and on the host. They show a string sent to the terminal...
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    Thanks Chuck, thanks gslick, It's been almost...

    Thanks Chuck, thanks gslick,

    It's been almost 30 years since I've worked with DTE <--> DCE connections, but I'm still embarrassed that I had so much trouble with all of this.

    I'm grateful for...
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    Hi gslick, I just sent you a PM. Thanks!

    Hi gslick,

    I just sent you a PM.

    Thanks!
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    Chuck, The local test was successful. I have...

    Chuck,

    The local test was successful. I have a functioning RS232 port on the terminal.

    Without the jumpers, I get no characters echoed back. With the 2-3, 4-5, and 6-8-20 pins jumpered, I get...
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    It looks like I'll end up having to build a...

    It looks like I'll end up having to build a custom interface here with DB9 and DB25 breakout boards.
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