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6
Biasing
This layout requires high grade potmeters, capacitators and trimpot to work as expected. The
trimpot is used to bias the transistors Q1 and Q2. Start in the middle position and experiment which
setting suits your tonal taste best. Also test it with
Wrath
on and off. If you only get squealing then
adjust the trimpot. Remember that the squealing/oscillating is part of the effect with the Wrath
setting engaged, just the amount of squealing should be set to your own liking! This effect takes time
to get to know it and finding your tone. Sputter and Wrath also influence each other’s behaviour so
also experiment with that.
Troubleshooting
All PCB’s have been e-tested 100% in the factory, so there should not be a connection problem on
the PCB itself.
The board is not working (at all), what now?
Check if your 9V is plugged in correctly (and/or soldered correctly on the board).
Check that you oriented the capacitors, IC’s ,transistors and diodes the right way. MKT
capacitors and resistors do not need to be oriented.
Check if you used the correct values of the components. For resistors you can look here:
http://www.diyaudioandvideo.com/Electronics/Color/
Double and triple check your soldering! A lose or cold solder can be really bad for your board.
Replace the IC’s and transistors, one might be defective. Before doing that first unplug the 9V
and wait 5 seconds.
Check that you have good/high grade components. A lot of Chinese sourced parts are fakes
(especially high end opamps and transistors) so be careful that you source your parts from
reliable suppliers.
Содержание Divine Fuzz
Страница 1: ...1 Divine Fuzz Building instructions V1 0...
Страница 7: ...7 Schematic...