[GreenKeys] 28KSR question...

Wed May 13 14:26:54 EDT 2020

Hi John and all,

Yep, the pin is towards the front :) … and I believe that the other one is towards the back.  I think the typing unit is original with the cabinet… it looks like underneath, a bunch of equipment was taken out - it might have gone down there ;o .  Also, the AC power canoe looks like it belongs more to a 15/19, as opposed to a 28.  Anywho, if they are the same part number, then indeed the shell can be reversed - that’s very good news ^^ !  I will do some jumping today with some jumpers (*along with an an ohm meter), to see if I can get the bell to go ringy dingy :) .  It’s part of the fun of tracing down on how these old machines worked ^_^ !… and I had one more thing I was going to say, but it just slipped my mind ;o … ah well, I’ll probably think of it after I hit send ;p ~

I did watch the back of the stunt box… it does what it should - from what I can tell ;o .  To the ohm meter we go!

> On May 13, 2020, at 10:17 am, John, W9DDD <w9ddd at tapr.org> wrote:
> 
> That picture leads me to a question, is the right connector reversed? That is the locating pin is towards the front as opposed to the back as is the left connector.  I always wondered how they kept you from cross connecting the two since they were the same part number.
> 
> John, W9DDD
> 
> On 5/13/2020 9:35 AM, Steve Garrison wrote:
>> Looks like it is time to break out the solder iron!
>> For testing purposed, how about using some mini-clip from the upper pins on the outer unused connector to the correct pins on the bottom of the inner connector.   Once you have verified which wires need to be relocated and to which pins, then it’s time to rewire.
>> Steve G./N4TTY
>> *From:* greenkeys-bounces at mailman.qth.net <greenkeys-bounces at mailman.qth.net> *On Behalf Of *E.
>> *Sent:* Wednesday, May 13, 2020 10:01 AM
>> *To:* Green Keys <greenkeys at mailman.qth.net>
>> *Subject:* Re: [GreenKeys] 28KSR question...
>> HI Ralph,
>> Yeah, I apologize, the first photo I attached last night wasn’t so good ;o … this one (attached) has a slightly better angle, where you can see the four bell wires from the stunk box, going to the unoccupied connector :) .
>>    On May 13, 2020, at 7:55 am, Ralph Irish <w8roi at wowway.com
>>    <mailto:w8roi at wowway.com>> wrote:
>>    Eric
>>    For something as elementary and regular as the Bell function, there
>>    may not be a great deal of
>>    differences in wiring.  For many other things, though, there are
>>    almost as many different,
>>    'standard' diagrams as there are keys on the keyboard!  Just depends
>>    on who was going to be
>>    using a machine and how many machines they were expected to buy from
>>    Teletype.  Two of those
>>    four wires are wired to the switch that activates the bell.  Not
>>    certain about the other two.
>>    Those switches are manufactured 'two to an assembly' and sometimes
>>    had both an open and a
>>    closed contact.  Some of the open contacts are held closed by
>>    positioning, and the reverse
>>    also holds true.  This was set up to be as versatile as possible for
>>    anyone doing 'programming'
>>    of stunt boxes.
>>    If you carefully, and I mean  CAREFULLY, use a live power cord and
>>    apply 115V very quickly to
>>    terminals 29 & 30, or wherever the bell wires terminate, you should
>>    hear a 'ding'.  MAKE
>>    CERTAIN THAT EVERYTHING IS POWERED OFF AND ALL PLUGS TO ACCESSORY
>>    EQUIPMENT PULLED WHEN YOU
>>    DO THIS.  Don't rely on any other switching to assume that it is
>>    safe with anything else
>>    plugged in.
>>    If you get the 'ding' that means the bell is OK, and that there is
>>    some other interruption
>>    in the Bell circuit.  Wire tracing and an ohmmeter will be required,
>>    probably.
>>    -   -   -   -
>>    I can see orange and yellow wires in the left side photo on the
>>    switches and the same colors
>>    on the 'occupied' connector in the second photo.  I don't see any
>>    wires on the auxiliary
>>    connector in the second photo.  The 'occupied' connector should also
>>    have the wires from
>>    the selector magnets and possibly others from other equipment
>>    installed.  Maybe an
>>    Answerback trip solenoid, or a print suppression solenoid, etc.
>>    That second (auxiliary) connector is there in case more switches are
>>    installed to do some
>>    'tricks' or stunts, from incoming signal sequences.
>>    Good luck!
>>    Ralph - W8ROI
>>    -   -   -   -   -   -   -   -
>>    On May 12, 2020, at 9:18 PM, E. wrote:
>>        Thanks all for all the replies ^^ !  I believe the bell contact
>>        board is this little guy in the photo attached, right?  It
>>        appears that the wires from it go to the empty connector on the
>>        right - in the second photo (attached)… so it really goes no
>>        where.  If I’m looking at it correctly - why is this???  Is
>>        there a way to rectify the situation ;p ?  Will look at the
>>        wiring diagram after supper…..
>>        <IMG_0054.jpg><IMG_0055.jpg>
>>        ______________________________________________________________
>>        GreenKeys mailing list
>>        Home: http://mailman.qth.net/mailman/listinfo/greenkeys
>>        Help: http://mailman.qth.net/mmfaq.htm
>>        Post: mailto:GreenKeys at mailman.qth.net
>>                    Jordan Spencer Cunningham's GreenKeys Search Tool:
>>                    https://teletype.net/gksearch
>>                    2002-to-present greenkeys archive:
>>                    http://mailman.qth.net/pipermail/greenkeys/
>>                    1998-to-2001 greenkeys archive:
>>                    http://mailman.qth.net/archive/greenkeys/greenkeys.html
>>                    Randy Guttery's 2001-to-2009 GreenKeys Search Tool:
>>                    http://comcents.com/tty/greenkeyssearch.html
>>        This list hosted by: http://www.qsl.net
>>        Please help support this email list: http://www.qsl.net/donate.html
>>        Message delivered to w8roi at wowway.com <mailto:w8roi at wowway.com>
>> ______________________________________________________________
>> GreenKeys mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/greenkeys
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:GreenKeys at mailman.qth.net
>>>>> Jordan Spencer Cunningham's GreenKeys Search Tool: https://teletype.net/gksearch
>>>>> 2002-to-present greenkeys archive: http://mailman.qth.net/pipermail/greenkeys/
>>>>> 1998-to-2001 greenkeys archive: http://mailman.qth.net/archive/greenkeys/greenkeys.html
>>>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool: http://comcents.com/tty/greenkeyssearch.html
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to w9ddd at tapr.org
> ______________________________________________________________
> GreenKeys mailing list
> Home: http://mailman.qth.net/mailman/listinfo/greenkeys
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:GreenKeys at mailman.qth.net
> 
>>>> Jordan Spencer Cunningham's GreenKeys Search Tool: https://teletype.net/gksearch
>>>> 2002-to-present greenkeys archive: http://mailman.qth.net/pipermail/greenkeys/
>>>> 1998-to-2001 greenkeys archive: http://mailman.qth.net/archive/greenkeys/greenkeys.html
>>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool: http://comcents.com/tty/greenkeyssearch.html
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to hanyou at xsmail.com