Re: 251101-01 Kernal ROM chip for SX-64 (UD3)

From: Marko Mäkelä (
Date: 2007-01-10 10:11:21

On Tue, Jan 09, 2007 at 10:27:05PM -0500, B. Degnan wrote:
> ...Thanks to everyone who replied.  I am happy to use a regular C64 ROM.  I 
> have a 901227-02 / 1383 that should do the trick.  There is a 901227-03 on 
> Ebay right now for $8 + shipping.  I will try the 02 first, and see how it 
> goes.

The 901227-03 is probably the most common version.  $8 seems way too
expensive for it.  There is no big difference between ROM versions.
Probably the most visible differences are the screen colours and the
output of the SHIFT+STOP key combination.

> I only have one spare ( I assume working) NTSC 6560, but it's part of a
> clock I made out of a VIC-20 and all of the rest of my VIC-20's work.

Argh, why isn't the clock powered by the Vic-20?  Hmm, or maybe it
wouldn't be a good idea to risk speeding up the aging of the hardware
by having it constantly powered on.


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