ongbs,
my donuts that I wound seems to be performing terribly well.

The airiness is excellent! On my 'teeny weenie' donuts, I need about 14 windings to get it right.
I guess the type of materials of the donut have direct influence over the inductance, hence the final audio output.
Will be a permanent feature on my first board, on my second board, I want to use a heavier wire gauge or an air core.. coming, next change

Only 5 huh? Lets see some pix!!
QUOTE(ongbs @ Sep 4 2008, 05:15 PM)
Jazzy, how's your findings on donuts now?
Any new improvement?
I found that if the uH too low the output totally gone (no switching?)
Sounds like >90% distortion or those burnt amp stage sounding...
My current donuts only need 5 windings...anything more will have the higher end detail missing..