Yes, that was a monochrome display, though, wasn't it? It's likely that if it
did receive a TTL-compatible signal from the video circuit, it was attenuated in
the monitor interface circuitry. The Osborne used a COTS monitor and probably
wouldn't have had it customed in order to save a couple of resistors.
Dick
----- Original Message -----
From: "Feldman, Robert" <Robert_Feldman_at_jdedwards.com>
To: <classiccmp_at_classiccmp.org>
Sent: Thursday, May 10, 2001 3:15 PM
Subject: RE: Converting TTL monitor to Analog
> The Osborne 1 also used TTL-level signals for its video.
>
> -----Original Message-----
> From: Jeff Hellige [mailto:jhellige_at_earthlink.net]
> Sent: Thursday, May 10, 2001 3:36 PM
> To: classiccmp_at_classiccmp.org
> Subject: Re: Converting TTL monitor to Analog
>
> <snip>
> Looking at to references I have here, I see two monitors
> right off the bat that take a TTL signal as input: both the Tandy
> CM-1 and VM-1 monitors, not to mention the current crop of DVI LCD's
> out there.
>
> Jeff
> --
> Collector of Classic Microcomputers and Video Game Systems:
> Home of the TRS-80 Model 2000 FAQ File
> http://www.geocities.com/siliconvalley/lakes/6757
>
>
Received on Thu May 10 2001 - 16:42:34 BST