They used 4.77MHz for IBM PC's and PC XT's.
73 de
Jeff Cochrane - VK4BOF
Innisfail, QLD, Australia
Elecraft K3 #4257 + KPA500 + PR6 + K144XV = Multiband greatness!
----- Original Message -----
From: Kevin Rock
To: elecraft@mailman.qth.net
Sent: Monday, April 25, 2011 3:17 PM
Subject: Re: [Elecraft] 14.316 help!
Which crystal frequency did they use on the IBM PCs before the AT came out?
Kevin. KD5ONS
On Sun, 24 Apr 2011 22:09:17 -0700, Rich Heineck <ric...@frontier.com>
wrote:
> 14.318 Mhz has been widely used on PC motherboards going back to the
> original IBM PC-AT.
> That would be high on my list of suspicious sources.
>
> 73,
> Rich AC7MA
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