As an aside... > The SID uses the +12V for some of the output stage and since it's > analog, changing the voltage might change the sound. So be careful > what you do. Unless I missed something, the +12V are only used for > 6569 and 6581. I cannot verify for 6581 (and 6582) right now, but in the 8580 the higher voltage supply (+9V there) is used for _all_ the analog circuitry, starting with both DACs; not just the output stages. Curiously, the "middle" voltage for the audio ("analog ground" if you will, +4.5V) is generated from +5V, not +9V. I wonder why that is. Segher Message was sent through the cbm-hackers mailing listReceived on 2012-05-15 05:00:05
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