[GreenKeys] Model 28 ASR

Wed Jun 11 16:19:23 EDT 2014

Thanks all. I was able to determine with another users help that it was the polarity that was the problem. I reversed my loop power coming from the 98 and it locked up just fine at the 60 ma operation which is what I was trying to do. 

Oh, and yes, the drawing I had showed line on 1 and 2 but really they were jumpered to other numbers on the strip . Next step is to work on the typing reperf! Someone did some wiring changes there so make take some time to figure out just what they did.

Again thanks all for the help.

Steve N4YZA The other Rice 

From: Nick England 
Sent: Wednesday, June 11, 2014 4:06 PM
To: The Rices 
Subject: Re: [GreenKeys] Model 28 ASR

Roger that. I have WU 28ASR and if I recall correctly, when in line mode, there is a polar relay in the line which must be keyed by an external loop p/s and the relay then keys the printer via the internal LESU loop supply. 

But there are dozens of links among those terminal strips at the rear for configuring these things do who knows what isissing or modified. 
Good Luck!
Nick 
(phone email acct) 

On Jun 11, 2014, at 12:21 PM, "The Rices" <srice3 at cfl.rr.com> wrote:

  Thanks Nick, It has a test line switch in the front and moves a switch on the power unit at the back. When in Test mode the machine locks up and works fine but when I switch to line mode it runs open and no loop of power  so far that I can find. I have been looking through a whole bunch of diagrams and will continue to look. Thanks Steve/ N4yza

  From: Nick England 
  Sent: Wednesday, June 11, 2014 12:54 PM
  To: The Rices 
  Subject: Re: [GreenKeys] Model 28 ASR

  If you've got a line-local switch, the line is shorted when in local mode. 
  I think there are only 347 different 28ASR wiring variations!

  Nick 
  (phone email acct) 

  On Jun 11, 2014, at 11:11 AM, "The Rices" <srice3 at cfl.rr.com> wrote:

    Question for the model 28 user. I am testing out my 28 ASR page printer and keyboard and it works fine in test mode. When I check to hook up the line wires to terminals 1 and 2 I get a dead short on those terminals. Am I correct that I should be hooking the data line to 1 and 2 and 3 is ground? Should I instead go to the selector mag terminals 8,9,20,21. Been too long since I hooked one up. Thanks
    Steve/N4YZA

    From: Hugh Pyle 
    Sent: Wednesday, June 11, 2014 3:39 AM
    To: lester at veenstras.com 
    Cc: GreenKeys at mailman.qth.net 
    Subject: Re: [GreenKeys] M32/33 Teletype bulletins...

    PDFs at bitsavers: 

    http://bitsavers.trailing-edge.com/pdf/teletype/33/

    On Tue, Jun 10, 2014 at 2:50 PM, Lester Veenstra <lester at veenstras.com> wrote:

      Does anyone have a scanned set; If not, I guess I need to get busy

      Lester B Veenstra  MØYCM K1YCM W8YCM

      lester at veenstras.com

      US Postal Address:

      5 Shrine Club Drive

      HC84 Box 89C

      Keyser WV 26726

      GPS: 39.336826 N  78.982287 W (Google)

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      This e-mail and any documents attached hereto contain confidential or
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      From: GreenKeys [mailto:greenkeys-bounces at mailman.qth.net] On Behalf Of Kenneth Gartland
      Sent: Monday, June 09, 2014 8:26 PM
      To: GreenKeys at mailman.qth.net
      Subject: [GreenKeys] M32/33 Teletype bulletins...

      Hi all...

      Am looking for the following TTY tech manuals...

      273B Vol 1 & 2 - Description/adjustments 32/33

      1184B Parts 32/33.

      Was hoping one of you guys mite have a spare set of these

      manuals you mite like to sell. I have seen them on our favourite auction site (!), but wud to prefer to buy them

      from someone on the list...

      Condition not too critical, it wud be nice to have the

      original manuals, not just downloaded internet copies...

      Pls let me know if you can help out...Tks!

      Ken VE3-HMQ

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