On Friday 08 May 2015, 22:21:49 Marko Mäkelä <msmakela@gmail.com> wrote: > On Fri, May 08, 2015 at 04:51:47PM +0000, William Levak wrote: > >>For minimal interferences only the vertical sync is defined to the > >>frequency of the main power. > > > >I looked at the schematics for the vertical drive circuit. It is > >driven entirely from 12 V DC and the sync signal from the system > >board. So, it would not be affected by different line frequency. > > I think that Martin meant interference between the CRT display and > ambient lighting, such as fluorescent tubes or tungsten bulbs. I do not > know, but it might be that the screen would seem to flicker if the > lights flickered at 50Hz (or 100Hz) while the screen is flickering at > 60Hz. exactly - iirc that was even mentioned in some technical doc back in the days. -- http://www.hitmen-console.org http://magicdisk.untergrund.net http://www.pokefinder.org http://ar.pokefinder.org Universitäten sind schöne Misthaufen, auf denen gelegentlich einmal eine edle Pflanze gedeiht. <Albert Einstein> Message was sent through the cbm-hackers mailing listReceived on 2015-05-08 20:00:50
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