opps, that sine cosine pot X sweep sawtooth generator to create the rotating vector.
Randy
From: cclist at
sydex.com
To: cctalk at
classiccmp.org
Date: Fri, 24 Oct 2008 13:46:48 -0700
Subject: Re: CRT displays [was: computer graphics in the 1950s]
On 24 Oct 2008 at 21:24, Tony Duell wrote:
I just
want to mention that there were polar-coordinate tubes. They may be
Interesting,. I'd not heard of those before. I will have to try to find
some data sheets, etc.
I don't recall them being mentioned in the ook 'CRT Displays' (part of
the Radiation Lab series), but I may well have missed them.
Weren't they used for radar displays?
Cheers,
Chuck
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