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"Sparkle Boost" Question

Started by soupbone, February 07, 2011, 05:28:02 AM

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soupbone

February 07, 2011, 05:28:02 AM
I'm going to build Dragonfly's "Sparkle Boost" with the NTE 458 Transistor.I was wondering on the schematic it has a 100k Trimpot and the transistor.Does either one of them need to be "biased"?

CynicalMan

#1
February 07, 2011, 08:03:45 AM
Adjust the trimpot so that the voltage on the fet's drain is 4.5 volts.

soupbone

#2
February 07, 2011, 01:23:41 PM
Cool.Thanks Alex!

ayayay!

#3
February 07, 2011, 02:31:24 PM
Just bias it to what your ears like.  It's not a super picky circuit. 
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