[GreenKeys] RS-232 - Current loop converters available

[Jerry Murphy]

Greenkeyers:  Black Box RS-232 - current loop converters are available on that
popular internet auction website.  Here's the link:

cgi.ebay.com/381530563235

The current loop output of the converter is low voltage so it works fine with
Teletype machines that have a selector magnet driver like the 32, 33 or 35.
If you want to have it directly key the selector magnets on a 14, 15 or 28, 
you will need to add an outboard high voltage keyer circuit.  

No connection to the sale.

Jerry Murphy