DC547 and 12V - Core C3,4,5,6 for Optimized PSU

[ganchan]

Since i'm not inside electronic i've a quest that i can't answare.

The 12V that require BC547, are for both Sid 8580 and 6581? Or i must change to 9V like Vdd for 8580?

Thankyou guys

[TK.]

Yes, the transistor will work with both voltages without danger

Best Regards, Thorsten.

[ganchan]

Thankyou TK.

I've just another quest, the Caps C3 C4 C5 C6 of the Core module can be left out like 7805 when i use the Optimized C64 PSU circuit? I think this because i connect it to j2 and +5/ground go out near this Pins, and not after Caps on the Core.

Thankyou for your patience.

[TK.]

My proposal is to let these caps on the core module, and to bypass the outer pin holes of the 7805 (which is not mounted) as well as the pin holes of the rectifier (which is also not connected), so that all caps are routed to 0V/+5V

This results into less noise at the digital line -> better sound capabilities!

Best Regards, Thorsten.