[GreenKeys] M43 Dot Matrix Terminal

[Richard]

I haven't seen the original message from Norm except as quoted by Dr.
House.

On 1 Feb 2012, at 11:53 AM, Norm wrote:
> 
> I have acquired 3 desktop model M43 TTTYs.  One has the two telephone  
> plugs, the other two has 25-pin computer plugs. some of my questions  
> are:
> 
> 1-I am sure I need a new ribbon.  Where can I acquire one?

Ribbons are intermittently available on ebay.  The last time I posted
about ribbons on 12 Apr 2009 there were some here:
<http://www.patriotimaging.com/product.asp?id=7425>

> 2-I don't have any Documents on them.

I have a complete set of M43 documentation and I will be happy to look
up something if needed.  You can find the operator's manual here:
<http://bitsavers.org/pdf/teletype/KSR43_Operators_Mar82.pdf>

> 3- The alarm light stays on, I think I blocked the no paper switch.  
> Not sure of other switches  to  block.

As I mentioned above, I have service manuals.  They are in the "to be
scanned" pile, but since they are bound as a booklet and not loose
leaf, it means a bunch of manual page scanning.

> 4-Is there a different board for 20 or 60 ma operation?  I have many  
> more questions, but I will start out with these.

I *think* there might have been a 20mA current loop option for these,
but most were prewired for either modem use (phone jack) or RS-232
use.

> I also have a Digital Letterwriter 100, that I need a ribbon for.

You might try this: <http://www.littlesupply.com/c-888703305-letterwriter.aspx>
I have no affiliation other than my ability to use google.
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