[GreenKeys] [Bulk] Machine on auction site

[Richard]

In article <20110630201243.GK14690 at n0jcf.net>,
    Chris Elmquist <chrise at pobox.com> writes:

> By the way, the keys on this VT05 _are_ green.  Very, very dark green...

Wow... UV fading or just a result of the acidic treatment from animal
urine?

> On Thursday (06/30/2011 at 01:03PM -0600), Richard wrote:
>
> > Commands require fill characters above 300 baud:
> > <http://vt100.net/docs/vt05-rm/chapter2.html#S2.7>
> > I haven't looked at the engineering drawings to see why, but the
> > documentation makes some mention of this being tied to the mains
> > frequency.
> 
> That's interesting and curious.  I'll have to look at the docs to
> understand what they were doing there.  Probably waiting for the vertical
> retrace before updating the screen... so that it didn't cause flicker
> or other video anomalies when updating whatever display memory it has.

Ah... if it was 60Hz refresh that would make sense.  Come to think of
it, the docs might have said "60 Hz" and not specifically mains
frequency.
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