[GreenKeys] 28KSR question...

John, W9DDD w9ddd at tapr.org
Thu May 14 10:40:28 EDT 2020


And more here if anyone is interested.
Carrier system
http://etler.com/docs/BSP/312/312-700-100_I5.pdf

Power supply
http://www.navy-radio.com/manuals/tty/570-302-400-6412.pdf

John, W9DDD

On 5/13/2020 9:49 PM, w9ddd at tapr.org wrote:
> 
> The stuff under the RO looks like this:
> http://etler.com/docs/BSP/570/570-303-103_I3.pdf
> 
> John, W9DDD
> 
> 
> On May 13, 2020, at 9:33 PM, E. <hanyou at xsmail.com 
> <mailto:hanyou at xsmail.com>> wrote:
> 
>>
>> Hi all,
>>
>> Well, about the KSR… Paul from Denver gave it to me, along with 
>> another 28s and one other TT.  We met halfway this last weekend and it 
>> all worked out very nicely :) .  Hope to get back together with him 
>> one of these days in the future, once the virus is all over, for a 
>> good chat :) .
>>
>> As suspected, I can confirm that the typing unit is not original.  It 
>> has punctuation, while the keys are fractions.  I did get the bell to 
>> work though… printed out the four pages of schematics and taped them 
>> together ;p .  You know, part of the fun - and learning, is to digit 
>> to these old machines and see how they work ;) … not like you can pick 
>> up one of these at the corner drug store at anytime anymore, so one 
>> really has to be careful ;p .  Anywho, I decided - also as suggested, 
>> on jumping the pins on the bottom of the connectors - from one side, 
>> to the other, after some tracing down with the ohm meter… so I ended 
>> up jumping….. ugh, I can’t read the numbers on the schematic - they’re 
>> too blurry… but I jumped only two from the right side, to the left 
>> (photo attached - kind of a bad photo again :/ ).  Insta-bell work ;D 
>> !  Still going to put the incoming connector onto the top of the empty 
>> one though, for shock protection :) .  The power supply terminals are 
>> waaaaaay too tight to try to mess with - after I dug down deep enough, 
>> so that helped sway my decision ;p .
>>
>> Now the other 28 is an RO.  Underneath in the cabinet - photo 
>> attached, is all of this stuff @o@; .  I’m afraid to go near it… what 
>> is it ;p ?  This RO came from a radio station back east and was on one 
>> of the news service wires.  Paul says it works - but man, there is 
>> serious stuff down there ;o !!!
>>
>> Again, thanks for all of the help everyone ^_^ !
>>
>> <IMG_0091.jpg><IMG_0090.jpg>
>>
>>
>>> On May 13, 2020, at 5:04 pm, E. <hanyou at xsmail.com 
>>> <mailto:hanyou at xsmail.com>> wrote:
>>>
>>>
>>> (forwarding to the list)
>>>
>>>
>>> Nick,
>>>
>>> It came from here:
>>>
>>> http://www.rtty.com/development/teletype/model28KSR/wo470-3.pdf
>>>
>>> Ralph is kindly sending me a spare connector, so my hope is doing it 
>>> with the spare connector, as opposed to trying it inside the cabinet 
>>> itself.  Just need to trace down where the wires go to - then it’d be 
>>> just the same with moving, except without the cabinet soldering mess :) .
>>>
>>>
>>>> On May 13, 2020, at 4:58 pm, Nick England <navy.radio at gmail.com 
>>>> <mailto:navy.radio at gmail.com>> wrote:
>>>>
>>>> Move wires from right side 4-5 to left side 2-7
>>>>
>>>> Your cabinet doesn’t have a cable for the RH connector so chances 
>>>> are extremely high it is wired for the standard bell connection.
>>>>
>>>> The image is hard to read. What document did it come from? I’ll 
>>>> rescan if I can find it.
>>>>
>>>> Nick
>>>>
>>>> On Wed, May 13, 2020 at 5:44 PM E. <hanyou at xsmail.com 
>>>> <mailto:hanyou at xsmail.com>> wrote:
>>>>
>>>> …so looking at some schematics, the attached screenshot is my 
>>>> situation with the four wires (right connector)… now I just need to 
>>>> figure out where they should go ;p ~
>>>>
>>>> <Screen Shot 2020-05-13 at 4.43.26 pm.jpg>
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>>
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> 
> 
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>>>> Jordan Spencer Cunningham's GreenKeys Search Tool: https://teletype.net/gksearch
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>>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool: http://comcents.com/tty/greenkeyssearch.html
> 
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