On Jul 29,  2:13pm, Richard van den Berg wrote:
> Subject: Re: VR320 monitor <-> PMAG-?

> The 'CA' extension is for monitors for the northern hemisphere and the
> 'C4' extension is for monitors for the southern hemisphere. That's the way
> the VRC16 an VRM17 models are listed in the "Personal DECstation 5000
> Hardware Maintenance Guide".

The 'C4' monitors have a built-in cross-over logic, which internally rotates
the CRT signals so that they display upright images even on the southern
hemisphere.


-- 
Dr. Alexandre Wennmacher
Institut fuer Geophysik und Meteorologie         wennmach@geo.Uni-Koeln.DE
Universitaet zu Koeln                            phone  +49 221 470 - 3387
D-50923 Koeln                                    fax    +49 221 470 - 5198