[sdiy] SID 6581/2 source

[Rainer Buchty]

>Besides taking the SID chip out of old c64s, are there any actual suppliers? 

The market for "spare" SIDs has been pretty much harvested by the 
Electron ESI SIDstation. What you get today are mostly leftovers from 
cannibalized C64s and C128s.

>I can't find a supplier for the 8521 version, or whatever, so is that 
>apparently out of production too?

8580. Careful though, 6581 and 8580 use different analog voltages 
(12V vs. 9V). 

And, of course it is out of production since ~1991 when the last 
batch of C64 were produced.

>is there a commodore mailing list? :/

Weird question... You should ask "just *how* many are there!?". There 
are mailing lists, usenet groups, and (of course) inevitable web 
forums, as well as even more web sites dedicated to programming, 
repairing, and preservation.

I'd recommend the cbm-hackers (hosted on cling.gu.se) mailing list for 
hardware-specific questions or comp.sys.cbm (usenet) for questions of 
any kind. The latter sadly has a high noise-to-signal ratio these days.

Rainer