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zigzagsky · 27th Apr 2021, 10:34 am

Thanks for the very valuable information.

My Commodore in the past was bought in 1983 so would have had the original 6581 (no revision) by the look of things.

The later 8580 is too late to be fitted to a 'breadbin' C64 so it looks like whichever machine I go for (as I'm looking for a breadbin) it will have the 6581.

From reading the info given in the links, it sounds like all of that version chip may sound slightly different due to external forces such as capacitor tolerance rather than chip revision.

So looks like any breadbin is what I can look for and just focus on one in good condition.

27th Apr 2021, 10:34 am	#5
zigzagsky Diode Join Date: Apr 2021 Location: Sandhurst, Berkshire, UK. Posts: 5	Re: Commodore 64 SID chip type? Thanks for the very valuable information. My Commodore in the past was bought in 1983 so would have had the original 6581 (no revision) by the look of things. The later 8580 is too late to be fitted to a 'breadbin' C64 so it looks like whichever machine I go for (as I'm looking for a breadbin) it will have the 6581. From reading the info given in the links, it sounds like all of that version chip may sound slightly different due to external forces such as capacitor tolerance rather than chip revision. So looks like any breadbin is what I can look for and just focus on one in good condition.