ssion: On-Topic and Off-Topic Posts <
> cctalk@classiccmp.org>
> Cc: Tony Duell
> Subject: [cctalk] Re: Current Loop Schematics
>
> On Tue, May 2, 2023 at 1:34 PM Paul Koning via cctalk <
> cctalk@classiccmp.org> wrote:
> >
> > It seems surprisingly hard
If it’s specifically to interface to a model 33 Teletype, here’s a design that
works well and is pretty simple.
https://altairclone.com/teletype.html
Mike
seem to work just as well, 10+ years ago the LM317 was my standard design.
Martin
-Original Message-
From: Tony Duell via cctalk [mailto:cctalk@classiccmp.org]
Sent: 02 May 2023 14:06
To: General Discussion: On-Topic and Off-Topic Posts
Cc: Tony Duell
Subject: [cctalk] Re: Current Loop
On Tue, May 2, 2023 at 1:34 PM Paul Koning via cctalk
wrote:
>
> It seems surprisingly hard to find that, though this
> https://forum.vcfed.org/index.php?threads/rs-232-to-current-loop-interface.47841/
> is close.
>
> Conceptually it's really easy. The main tricky part, certainly if you're
> d
It seems surprisingly hard to find that, though this
https://forum.vcfed.org/index.php?threads/rs-232-to-current-loop-interface.47841/
is close.
Conceptually it's really easy. The main tricky part, certainly if you're
driving a mechanical terminal like a Teletype, is the current source. You
