GT-40 etc.

[Al Kossow]

On 1/21/18 10:12 AM, Al Kossow via cctalk wrote:
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> On 1/21/18 10:04 AM, Paul Koning via cctalk wrote:
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>> Remember that the GT40 is a vector drawing display, not a raster scan.  So you need a tube and associated deflection machinery that can handle high frequency X and Y deflection waveforms accurately.  This is not easy, especially with magnetic deflection.  I don't know what DEC used
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> Electromagnetic
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> The deflection amps on vr14s and 17s were notorious for blowing out.
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> 

the phosphor is long-persistance green