On 1/21/18 10:04 AM, Paul Koning via cctalk wrote:
> 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 Electromagnetic The deflection amps on vr14s and 17s were notorious for blowing out.