Difference between revisions of "20ma current loop to RS-232 conversion"
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Revision as of 20:49, 7 August 2015
20ma current loop <> RS-232 conversion
Vintage PCB
Dig this crazy circuit board man! Still in it's original packaging from Hobby World Electronics in Northridge California.
other resources
- Another circuit. From [Altairclone] Specifically designed to fit in a Teletype model 33 using only a 12vdc wall wart for power.
