On Thu, Jun 24, 1999 at 07:22:01AM +1000, David Burren wrote:
> The later VRT19 monitors auto-synced between the 66 and 72 Hz timings. 
> At least one older VRT19 (I think it even had the same DEC sub-model
> number) had a switch at the rear to select which rate to use.

My VRT16-DA has the switch, but it has no effect, since there's only one
set of timing adjustments.

I haven't tried my VRT19-HA with more than one scan rate, but I suspect it's
the one that will auto-sync.