[GreenKeys] Model 43 and Altair 8800

[Harold Hallikainen]

I agree with Jeff that the 43 is probably set to half duplex instead of
full duplex. See
https://ftpmirror.your.org/pub/misc/bitsavers/pdf/teletype/ksr43.pdf#page=25
.

I sold a LOT of model 43 printers (RO) for program and transmitter logging
in broadcast stations. The dot matrix printer I had seen before that was
the Extel printer used by wire services to replace Teletype model 15
printers. The 43 has very nice upper and lower case dot matrix printing.

To save money, I made my own RS232 card to put in the back of the 43.

Good luck!

Harold
https://w6iwi.org



On Mon, September 30, 2024 8:33 am, Jeff G wrote:
> Welcome to the list! I'm the person from Reddit that pointed you here. The
> problem you're having is called "local echo", and I'm not sure if the 43
> has a button or setting to turn it off. I looked at mine briefly but
> didn't
> appear to be an option at least on the switches on the keyboard. Meaning,
> the machine itself is printing the character while the character is also
> coming from the OS, hence why you're getting doubles. You -could- try the
> duplex button and see if that helps.
>
> Jeff


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