14 May
2001
14 May
'01
12:42 a.m.
The Atari 850 four port serial interface will handle 20ma current loop on
ports three and four. You could read the tapes in, store them to disk, and
upload them to your PC. I'll loan you all you'd need to do this if you
promise to return the gear and pay shipping.
Regards,
Jeff
In <Pine.GSO.4.21.0105102331270.19934-100000(a)lanshark.lanminds.com>om>, on
05/14/01
at 08:42 AM, "Fred Cisin (XenoSoft)" <cisin(a)xenosoft.com> said:
On Thu, 10 May 2001, Megan wrote:
> I have an old serial paper tape reader which runs with
> 20ma and would like to use it to archive all my pdp-11
> (and some pdp-8) paper tapes. But I need a converter...
> Can anyone help? Any pointers to a simple schematic?
As a quick and dirty alternative:
The original IBM asynch adapter for the PC and XT was jumperable to
operate as EIA OR 20 ma! You could use a PC with one jumpered 20ma plus
one "regular" serial card as your converter.
--
Fred Cisin cisin(a)xenosoft.com
XenoSoft http://www.xenosoft.com
PO Box 1236 (510) 558-9366
Berkeley, CA 94701-1236
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