[GreenKeys] Parts to Change 28 KSR to RO

Tue Jul 29 17:14:58 EDT 2025

I'm getting confused - Lets try using Teletype's terminology

BASE is the metal frame that the motor and printing unit attach to
  RO base does not have the keyboard parts (keys, code bars, etc.) attached
to it
  BUT - I *believe* that the same base part number 152000 is used for both
RO and KSR (KSR just has more parts attached)
COVER is the plastic shroud that goes over front
  for RO it is shorter with just holes for CR and LF
  for KSR it is deeper and has room for the keyboard
CABINET is the overall enclosure
  it may be table-top or floor mount
  I *believe* that the same CABINET will work for RO or KSR

I am ignoring wiring differences like the need to jumper over the missing
keyboard contacts in an RO.
My *belief* comes from looking at these actual items in my basement and
garage
And consulting my trusty 1149B

Nick England K4NYW
www.navy-radio.com

On Tue, Jul 29, 2025 at 4:57 PM Brenda Gentry via GreenKeys <
greenkeys at mailman.qth.net> wrote:

> I am learning what to ask for. I am starting to believe I need an RO base
> with the plastic front piece that is much smaller than a KSR. I get the
> impression if I can find an RO base all I would need to do is remove the
> KSR base with all of the keyboard and transmitting parts, install the RO
> base, and move the typer, motor and speed gears to the RO base. This
> conversion would be considered a downgrade, but space is critical and I
> need  RO only in this case.
>
>   Brenda
> On 7/29/25 2:53 PM, Jeff G wrote:
>
> While I guess it could be converted, wouldn't you really want an RO base?
> OR in the case of one of the 28s I got, it has a cover that fits over the
> keyboard.
>
> Jeff
>
> On Tue, Jul 29, 2025 at 2:08 PM Nick England <navy.radio at gmail.com> wrote:
>
>> I just looked at a RO and KSR chassis (sorry, no extra RO).
>> I think you would just need to remove the keys/keylevers except for local
>> CR and local LF.
>> Maybe need to remove the keyboard code bars, transmitter, etc, but
>> probably not.
>> A new RO front cover seems like it would align the CR and LF keys
>> properly.
>> Paul Cembura probably has RO front cover (153117) and chassis (152000) -
>> better check those part numbers!
>> YMMV. No Warranty.
>>
>> Nick England K4NYW
>> www.navy-radio.com
>>
>>
>> On Tue, Jul 29, 2025 at 10:45 AM Brenda Gentry via GreenKeys <
>> greenkeys at mailman.qth.net> wrote:
>>
>>> I want to convert a 28 KSR to RO. Aside from the much smaller plastic
>>> part on the front, what else would I need? Would it be easier if I searched
>>> for the entire chassis and front from an RO? Does anyone have one to spare?
>>>
>>>   Brenda Gentry, KA2IVY
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>
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