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Sch BOM

R1

1M

R2

10K

R3

33K

R4

150K

R5

4K7

R6

22R

R7

1K

C1

10n

C2

10n

C3

Empty

C4

1n2

C5

22u elec

C6

15n

C7

100u elec

D1-2

BAT46*

D3

1N5817

Q1-3

Low gain NPN BJT**

BIAS

22K trimmer

FUzz

1KB

VOL

50KA***

*Original diodes are SA815. Try what you like here - they’ll make a big difference to

the feel of the fuzz.
**Aim for 200-250 for Q1, 300-350 for Q2-3. Originals used BC238B and BC239C.

We’ve designed the PCB to take both TO-18 and TO-92 packages. See page 6 for

orientation information.
**100KA works much better - honestly. 

If you want to beef up the sound, swap C1 and C2 for larger values, such as 47n.

Содержание JenFuzz

Страница 1: ...JenFuzz Skanky 60s fuzz tones Contents of this document are 2022 Pedal Parts Ltd No reproduction permitted without the express written permission of Pedal Parts Ltd All rights reserved ...

Страница 2: ...wise stated in this document this circuit is designed to be powered with 9V DC COMPONENT SPECS Unless otherwise stated in this document Resistors should be 0 25W You can use those with higher ratings but check the physical size of them Electrolytics caps should be at least 25V for 9V circuits 35V for 18V circuits Again check physical size if using higher ratings LAYOUT CONVENTIONS Unless otherwise...

Страница 3: ...VOL 50KA Original diodes are SA815 Try what you like here they ll make a big difference to the feel of the fuzz Aim for 200 250 for Q1 300 350 for Q2 3 Originals used BC238B and BC239C We ve designed the PCB to take both TO 18 and TO 92 packages See page 6 for orientation information 100KA works much better honestly If you want to beef up the sound swap C1 and C2 for larger values such as 47n ...

Страница 4: ......

Страница 5: ... the pots Once they re in place you ll have no access to much of the board Make sure your pots all line up nicely The best way to do that is to solder a single pin of each pot in place then melt and adjust if necessary before soldering in the other two pins If your pots don t have protective plastic jackets ensure you leave a decent gap between the pot body and the PCB otherwise you risk shorting ...

Страница 6: ...er tab as shown Standard EBC transistors such as 2N3904 2N5088 Standard EBC transistors such as 2N3904 2N5088 Standard EBC transistors such as 2N3904 2N5088 Standard EBC transistors such as 2N3904 2N5088 Standard EBC transistors such as 2N3904 2N5088 Standard EBC transistors such as 2N3904 2N5088 CBE transistors such as BC238B BC239C E B C E ...

Страница 7: ...mistake with the switch Solder some nice long lengths of wire to the board connections for 9V GND IN and OUT Connect IN and OUT to the jacks as shown Connect all the GNDs together twist them up and add a small amount of solder to tack it Connect the battery lead to the 9V wire same method Plug in Go If you re using a ribbon cable you can tack the wires to the ends of that It s a lot easier to take...

Страница 8: ...Now s the time to refer to the daughterboard document for your chosen bypass method Enjoy your pedal ...

Страница 9: ... can accept no responsibility for incorrect drilling of enclosures FuzzDog co uk Recommended drill sizes Pots 7mm Jacks 10mm Footswitch 12mm DC Socket 12mm Toggle switches 6mm 32mm Drilling template without battery Hammond 1590B 60 x 111 x 31mm It s a good idea to drill the pot and toggle switch holes 1mm bigger if you re board mounting them Wiggle room good ...

Страница 10: ...d can accept no responsibility for incorrect drilling of enclosures FuzzDog co uk Recommended drill sizes Pots 7mm Jacks 10mm Footswitch 12mm DC Socket 12mm Toggle switches 6mm 32mm Drilling template with battery Hammond 1590B 60 x 111 x 31mm It s a good idea to drill the pot and toggle switch holes 1mm bigger if you re board mounting them Wiggle room good ...

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