Subject: M8650 (KL8E) crystal

From: [email-masked] (Douglas W. Jones,201H MLH,3193350740,3193382879)
Date: Sun, 21 Feb 1993 04:27:27 GMT

The following crystal works for converting an M8650 to an M8650 YA
(that is, to convert from 110 baud to multiples of 300 baud on the
most common of the Omnibus asynchronous interface cards):

   CTS MP196 19.6608 MHz

This crystal is sold by DigiKey as:

   Part no CTX090
   Manf no MP196
   19.6608 MHz Crystal HC-49 Series

DigiKey charged me $1.49 ea for these.

I had a working M8650 YA, and two untested M8650 boards.  I converted
both to M8650 YA, and one worked (it looked like I was the first to move
any of the factory jumpers on that board), and the other tends to pull
MD3 to zero so I couldn't really test it (it had lots of prior work on
it, as if the board has been through a war, and must still be injured).

The big conclusion of this effort is that the crystal required is a
series crystal!
					Doug Jones
					[email-masked]