F5 Turbo Assembly Instruction Version 2 Page 1
F5 Turbo V3 Assembly Instruction.
1. Introduction:
This PCB is designed base on the Nelson Pass F5T V3 circuit. Details please refer to the article posted by
Nelson on First Watt website: http://www.firstwatt.com/pdf/art_f5_turbo.pdf .
2. Circuit Diagram:
Since the PCB is layout by FETAudio and here is the circuit diagram for reference.
Notes:
a. The Q7 and Q8 is in TO-92 package. I have also put TO-220 package pads in the PCB if the
original transistor recommended by Nelson is used.
b. J7 is a pin header and it should be shorted to ground by a jumper for normal operation. The
“X” point is for those who want to modify the power amp into F5X mode.
c. Since I use Toshiba 2SK1530 and 2SJ201 power mosfets, I have changed some values of
some components and thus please refer to the update BOM (bill of material) for details.
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