[GreenKeys] RS232 to Analog Currnet Loop

[Don Robert House]

Most of the traffic on the air and over the web is 5 level ITA2  
usually referred to as BAUDOT.  The 33 ASR uses 8 level ASCII.  If the  
ST-8000A has a 5 to 8 level convertor you would be okay.
I do not know if it has a convertor or not.  There is a simple circuit  
layout, using a polar relay that will work to interface the machine  
with the terminal unit.
I will send it to you in a separate email.

Don
K9TTY
On 16 Jan 2009, at 3:11 PM, steveripper at comcast.net wrote:

Can anyone recommend an RS232 to Analog Current Loop converter or  
circuit that I can build to interface between HAL ST-8000A and my  
Teletype 33ASR.

Steve R.
steveripper at comcast.net
248-787-0705


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