DIY Fan Speed Control

[stephane]

have you made it Brian ?

Very interest to put it in my new canopy.
How many fan it could drive? I have four 13 mili amps fan in my new canopy could one unit run all?

I have made electronic circuit when I was in scool and I tink I could do it again even if it seem 2 million years ago

but we need the circuit shema to burns the copper
plate and I have no clue how do do this whith those sheet, any help here?