4
General guideline for components
Capacitors: All values under 1nF should be ceramic disks. From 1nF up to 1uF should be MKT
(foil/metalfilm capacitors) and over 1uF use electrolyte caps (or tantalum) 16V+ rated and
watch out for polarity!
Resistors: use 1% metalfilm for the best results.
Socket all transistors. This way you can easily mod them or replace them if they break.
General building tips
Soldering this board can be complicated for some people since the solder pads can be very close
together. Use a magnifying glass to make the job easier.
Start by soldering the resistors (but not yet VR5)and diode. D1 is optional so if you do not want it,
short it with a lead. Solder the small ceramic capacitator C6 next. C6 fits both ceramic as well as MKT.
Always insert one leg of the capacitator in the bottom mounting hole and the other leg in one of the
other two mounting holes. If you want to experiment with other transistors, you should now solder
the sockets for Q1 and Q2.
Now solder the MKT capacitors and the electrolyte capacitors. C1 is made to fit both MKT as well as
electrolyte. The polarity is (bottom to top) - + + for the three mounting holes (see page 3). Solder
the Bias trimpot VR5.
Place the transistors and you are almost ready to rock. The BC109’s are metal can transistors. Please
consult the datasheets for correct pinning.
SW1 should be a
footswitch
, SW2 and SW3 are
mini switches
and can also be SPDT. The remaining 3
legs of SW1 can be used to add a LED to the Wrath switch. To do that just look at how the status LED
is connected in the off board wiring on page 5 and copy that. If you prefer to let the LED turn on in
the other position then just move the grey cable on pin 3 of the switch to pin 1.
Besides the components mentioned in the table on the first page, you will need:
2 input jacks
. 2 mono jacks if you are not going to use a battery but only the 9V adapter. 1
mono (for output) and 1 stereo jack (for input) if you will be using both a 9V battery and the
9V adapter.
3PDT footswitch
(9 pins). I also carry an easy off board circuit for true bypass.
2,1mm DC jack
(isolated).
9v battery clip
(optional).
2 LED’s
.
22 gage stranded hook-up wire
.
Hammond 1590BB
case (or similar) in your favourite colour.
Modifications
It is reported that changing the value of R10 to 12K makes is sound better.
Instead of the BC109B you can experiment with other transistors like the 2N2222A.
Originally the values of C4 and C6 are switched (see schematic on p. 7). If you want that you
can switch them back, but most prefer the current setup.
Содержание Divine Fuzz
Страница 1: ...1 Divine Fuzz Building instructions V1 0...
Страница 7: ...7 Schematic...
