[GreenKeys] Model 28 date

[Nick England]

I suppose maybe looking at features vs dates of parts books and/or WD? I’ve
tried to put multiple issues of the parts books on line.
https://www.navy-radio.com/manuals-ttycorp.htm
Let me know if you are looking for a particular issue that I haven’t
scanned yet.

Also see Mark 1,2,3 differences…
https://www.navy-radio.com/tty/28-mark.htm

Don’t know of any serial number vs date info.

Nick England K4NYW
www.navy-radio.com


On Mon, Dec 18, 2023 at 4:41 PM B. Smith <smithab11 at comcast.net> wrote:

> Is there a method to determine the date of manufacture of a Model 28?
> k4che
>
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