[GreenKeys] 28KSR question...

Wed May 13 22:49:00 EDT 2020

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> 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> 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> 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> 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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