[GreenKeys] M43 Buffered KSR (Half Duplex Batch Only) - need info/manuals

[John, W9DDD]

I'm glad I'm sticking to model 28 preservation.  (at least that's my plan?)

John, W9DDD
Ich habe dreimal abgeschnitten uns jetzt zu kurtz. (I cut it off 3 times 
and it's still too short.)

On 8/8/2019 3:42 PM, Nick England wrote:
> M43 Buffered KSR (Half Duplex Batch Only)
> I have foolishly gotten one of these (for $5 plus shipping) - It looks 
> like it may be salvagable but I don't know for sure. It is friction feed 
> which is nice.
> 
> This is a Teletype Custom Products Division CP43.015.000 but I can't 
> find any sticker as to who was the customer. Label photos
> http://www.navy-radio.com/tty/m43/IMG_E3098.JPG
> http://www.navy-radio.com/tty/m43/IMG_E3097.JPG
> It also has a normal Teletype 4340/BAD tag which has been painted over
> http://www.navy-radio.com/tty/m43/IMG_E3099.JPG
> It also evidently has 5 special EPROMs in the controller - oh boy!
> 
> The keyboard looks mostly like other 43BSR I have seen in manuals. 
> Keyboard photo is at
> http://www.navy-radio.com/tty/m43/IMG_E3104.JPG
> some other quick photos are at http://www.navy-radio.com/tty/m43/
> 
> Before I spend any more time on it, it would be nice to know if it could 
> actually do anything useful! - What does "Half Duplex Batch Only" mean? 
> That you can only operate in some batch mode when running Half Duplex? or ?
> It looks like it will do regular S/R in Full Duplex so it may indeed be 
> useful.
> 
> Does anyone have 490M ("How to Operate" this custom machine) ?
> And/or 430M (Operators manual for M43 Half Duplex Batch Only )
> I'll need to see how to set options, etc.
> 
> I do have 489M "Installation and Routine Servicing for Tabletop Buffered 
> KSR (Half Duplex Batch Only CP43.015.000)". Here's the PDF in case you 
> are curious-
> http://www.navy-radio.com/manuals/tty/489-m43-8008.pdf
> 
> Yours in teletypery,
> Nick England K4NYW
> www.navy-radio.com <http://www.navy-radio.com>
> 
> 
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