[Coco] 6809 to 6309 switcher

Joe Schutts j_schutts at yahoo.com
Sat Nov 21 10:23:21 EST 2020


Hi Everyone,
I too asked about a circuit board that could be made to switch between the 6809 and the 6309 CPU for the CoCo 3. I was told that there was someone (I can't remember who) who made a circuit board that could switch between the two CPU's - BUT that there was a MAJOR problem...
The problem was that it would NOT WORK with the 2 Meg memory upgrade that is available for the CoCo 3. I contacted the person and asked him IF the circuit board was STILL AVAILABLE and he told me that it was available (for a cheap price). I also asked him about the problems with the 2 Meg memory upgrades and he told me that (as far as he knew) there were no problems. He then asked me WHO it was who told me that there was a problem with the 2 Meg upgrade and I told him. He than told me that he would check into it (I guess contact whomever had told me that there was a problem) to see what the problem was.
So far he has NOT gotten back in touch with me and I DO NOT know what (or even if) the problem still exists...
Sorry that I cannot be more helpful about this.
P.S. The gentleman did tell me that (as far as he knew) the circuit board DID WORK on the 512 K upgrade. Also, the circuit board comes as a plain board that you solder the sockets (or the chips) to the board...
Hope this helps...
Joe...


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