On 16.11.2011 18:00, Gerrit Heitsch wrote: > On 11/16/2011 06:46 AM, Segher Boessenkool wrote: >> >>> I read somewhere that 2 crystals resulted in poor picture quality >>> compared to using a PLL and only one crystal. Never understood why. >> >> I'm not sure if it is true, we only got hearsay. > > Well, one could try it out if one wanted... Supply the VIC with the normal > dot clock from the 8701 and rig up a second 17,7x crystal to supply the > color clock. > IIRC, the SX64 has two separate crystals on a clock module daughterboard, with some TTL logic. But I don't think the SX has bad video quality on it's video port. I think older C64 have a more blurry output and the new c64c and c128 suffer from artifacts (vertical stripes). Nicolas Message was sent through the cbm-hackers mailing listReceived on 2011-11-16 22:00:09
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