Nice LAB11 brochure.

Charles Anthony at
Mon May 2 18:46:39 CDT 2016

On Mon, May 2, 2016 at 4:36 PM, Charles Anthony < at>

> I can't locate any VR20 documentation, so other than pulse width input to
> the VR20 I am unable to speculate further; it may well be that Penetron
> technology was used, but the wording of the controller made it seem to me
> otherwise, but I am more than prepared to be wrong -- it is perfectly
> possible that the VR20 is controlling a Penetron based on the pulse width.
> Hmm. The Rhode Island Computer Museum has a working VR20. We need to get
them to take a look inside it to see what kind of CRT tube is in there....

-- Charles

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