[GreenKeys] Question on model and serial numbers

[Nick England]

I should update that mystery page since I found out the answer several
years ago!
The Bell 28D info and similar 28x markings can be found here
http://www.navy-radio.com/manuals/tty/28-we-rs.pdf

I have a TT-47A manual and need to scan it. It will be 10-15 days before I
can do that.

The UGC-25 compact is quite different from a regular non-compact 28RO.
Even more so for the UGC-20 compact KSR. I don't think you have one of
those but I need to look at your photos again.

I am traveling and using a phone for looking up info is painful.

Best regards
Nick



On Thu, Apr 13, 2017 at 8:25 PM Pete Lancashire <pete at petelancashire.com>
wrote:

> And here
>
> http://www.navy-radio.com/tty/28asr/rtty-05.htm
>
> On Thu, Apr 13, 2017 at 12:24 PM, Pete Lancashire <pete at petelancashire.com
> > wrote:
>
>> Found the 28D Bell System
>>
>> On Thu, Apr 13, 2017 at 12:16 PM, Pete Lancashire <
>> pete at petelancashire.com> wrote:
>>
>>> I'm trying to get a grasp on the 28's I have.
>>>
>>> The tags on the front of the printing unit above the dash pot all seem
>>> to have quite different "CODE"s.
>>>
>>>
>>> Hope someone can help with some questions
>>>
>>> Is there a reference to CODE "28D".
>>>
>>> In 1149B there is a reference to Mark II and Mark III printing units.
>>> is there a document that lists the differences ?
>>>
>>> Serial numbers ? Did the sequence restart depending on the CODE ? Or are
>>> the s/n's all from the same starting number ? So is the Spokane older then
>>> all the others ?
>>>
>>>
>>> Name       CODE          Serial Number
>>> Spokane    LP 3          2842            1149B_Mod28_Parts_Apr63.pdf
>>> Weather    28D           114782          No reference found
>>> Shop       MX-1115A/UG   15088           94200.1a_8-2.pdf
>>> Attic      LP111 RN AJG  275131          navelex-tty-1977.pdf
>>>
>>> 1149B_Mod28_Parts_Apr63.pdf
>>> "Mark II typing Unit" Friction Feed LP3, 4, 5, 6, 8
>>>
>>> 94200.1a_8-2.pdf
>>> TT-47A/UG
>>>
>>> navelex-tty-1977.pdf
>>> AN/UGC-25A Model 28 Receive-Only Page Printer Set (Compact). Same as
>>> AN/UGC-25 except the typing unit LP111RN/AY is replaced by LPIWY/AJG. AJG
>>> arrangement performs automatic carriage return on line feed with line feed
>>> suppression on the next two characters Note the unit I have is a KSR
>>>
>>>
>>>
>>>
>>>
>>
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-- 
Nick England K4NYW
www.navy-radio.com
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