Re: Asteroids replacement crystals.

Yes. There were two different cyrstals. But if you changed them, you had to change the integration capacitors on the DACs too

-Scott

Sent from my iPhone

On Nov 30, 2009, at 3:50 PM, "Clay Cowgill" <c.cowgill@comcast.net<mailto:c.cowgill@comcast.net>> wrote:

Hey... That just tickled a long forgotten memory... Didn't Major Havoc use two different crystals depending on if it was a kit or dedicated? (12MHz vs. 10MHz?) Or am I totally making that up? ;-)

-Clay

________________________________
From: owner-vectorlist@vectorlist.org<mailto:owner-vectorlist@vectorlist.org> [mailto:owner-vectorlist@vectorlist.org] On Behalf Of Bill
Sent: Monday, November 30, 2009 2:57 PM
To: <mailto:vectorlist@vectorlist.org> vectorlist@vectorlist.org<mailto:vectorlist@vectorlist.org>
Subject: RE: VECTOR: Asteroids replacement crystals.

5% of 12,096,000 =604,800. So if the 12.096 MHz crystal was in spec at +/- 5% it could be less than 12MHz. Unless you are going for the world record on the board the 12MHz crystals will be fine. I’ve used both for years with no problems. I’ve even accidently used a 10Mhz crystal – the game worked but the sounds were slower which gave it away.

Bill

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Received on Mon Nov 30 19:42:34 2009