21 Nov
2014
21 Nov
'14
11:14 a.m.
From: drlegendre
And one more - how do you differentiate a 20mA
current-loop model from
a 'standard' RS-232 model?
I believe the Model 37 is the RS-232 Teletype. (Is it based on the 33, or 35?
I don't know.)
If you have a working UNIBUS PDP-11, there are still 20mA serial interfaces
avalable for it. I have a DL11-C (M7800-YA) you can have for what I paid for
it (a song, just about), and someone on eBay has a DZ11-C (M7814) for sale
for cheap; someone else there has the breakout panel for it.
Noel