15 Mar
2008
15 Mar
'08
1:20 p.m.
To: cctalk at classiccmp.org
From: ats at offog.org
Date: Sat, 15 Mar 2008 16:06:28 +0000
Subject: Re: strange xtal frequencies
dwight elvey writes:
No, that's 3.579545 MHz (or 4.43361875 MHz for PAL) -- this one's a
bit faster than the NTSC colourburst, which presumably is what makes
it unusual...
You are correct. That is 1 out of two today.
Dwight
3.595295
MHz
TV color crystal frequncy.
Colourburst crystals do show up in quite a few computing devices,
though. I built a couple of Z84C00 machines running at the PAL
colourburst rate in the mid-1990s.
--
Adam Sampson
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