C64 PSU clone design (from Lemon64 forums)

Design Concepts
1

Hi everyone,

As I do not have any C64 power supply unit, I am looking for another solution. Jsaily from Lemon64 forum is making a clone of the C64 PSU… here are the links to the forum thread and schematics:

http://www.lemon64.com/forum/viewtopic.php?t=27552&start=105

http://www.netsonic.fi/~kelpf25b/C64-PSU.zip

What do you think about?  :smiley:

edit: i forgot to mention -> using an external 20ac/9ac output transformer

image: http://www.netsonic.fi/~kelpf25b/IMG_1090.JPG

2

http://www.cbm8bit.com/jsaily/  :slight_smile:

3

Cool :slight_smile:

PSU design isn’t so tricky… it’s finding a suitable transformer that’s the trick :wink:

4

Its really cool, especially for a replacement c64 PSU..

but as for midibox sid, wouldnt you be better off just suppling a 9v dc and 5v dc line directly, instead of having to use an optimised psu on top of this to convert AC to DC?

5

Totally.

6

And also smash pointed out in the chat that its a Switching PSU instead of a linear psu like the original c64 psu.

Most switching PSUs are prone to being noisey, so it may not be suitable for the MB-Sid application.

Still a cool find and alternative though.