FuzzDog Jordan Bosstone Bedienungsanleitung

Bosstone

Clone of an all-time

classic fuzz by Jordan

No reproduction permitted without the express written

Schematic

BOM

R1 150K

R2 560K

R3 560K

R4 18K

R5 18K

R6 2K2 (C R)

R7 Ignore

C1 22n

C2 22n

C3 47p

C4 22n

D1,2 1N4148

D3,4 *

Q1 2n2222

Q2 2n3906

ATTACK 100KB

VO 100KA

SWITCH SPDT

*Extra spots have been added for a second set of clipping diodes.

These are optional, but experimentation is fun. Try germaniums or EDs.

See later in the doc for info about the switching.

The power and signal pads on the PCB conform to the FuzzDog Direct Connection

format, so can be paired with the appropriate daughterboard for quick and easy

offboard wiring.

Be very careful when soldering the diodes and transistors. They’re very sensitive

to heat. You should use some kind of heat sink (crocodile clip or reverse action

tweezers) on each leg as you solder them. Keep exposure to heat to a minimum

(under 2 seconds).

Snap the small metal tag off the pots so they can be mounted flush in the box.

Pot mounts on the back side of the board. You can use vertical-mount pots or just wire up ‘normal’ ones.

The striped leg (cathode) of the diodes go into the square pads.

The long leg (anode) of the electrolytic capacitors go into the square pads.

D3 and D4 are optional. To build the circuit in stock format with fixed clipping, leave these out and put a

jumper wire between pads S1 and S2.

To add the optional clipping switch, populate D3 and D4 with

your choice of diode (1N34 work well), and add your selection

switch. This can be a standard SPDT ON-ON toggle switch, or a

micro toggle as shown, which should locate nicely into the pads

provided. This can go either side of the PCB, depending how far

you want your switch from your knobs.

For extra fun you could make this a SPDT ON-OFF-ON switch.

The middle position will take out the clipping altogether, giving

you a very loud overdrive effect. The top two pads above the S1-3

pads are just location holes for the micro toggle. Nothing

connects to these.

1 2 3

Bottom of a standard toggle switch

<<<<<<

Test the board!

UNDER NO CIRCUMSTANCES will troubleshooting help

be offered if you have skipped this stage. No ex eptions.

On e you’ve finished the ir uit it makes sense to test is before

starting on the swit h and LED wiring. It’ll ut down

troubleshooting time in the long run. If the ir uit works at this

stage, but it doesn’t on e you wire up the swit h - guess what?

You’ve probably made a mistake with the swit h.

Solder some ni e, long lengths of wire to the board onne tions for

9V, GND, IN and OUT. Conne t IN and OUT to the ja ks as shown.

Conne t all the GNDs together (twist them up and add a small

amount of solder to ta k it). Conne t the battery + lead to the 9V

wire, same method. Plug in. Go!

If it works, ra k on and do your swit h wiring. If not... aw man.

At least you know the problem is with the ir uit. Find out why, get

it working, THEN worry about the swit h et .

YRET

GND

UDING WIRED PO

INCL

cuit boa

w cir

e, ne

our nic

OUT

!!!!

TUO

(if using a daughterboard please refer to the relevant document)

Wire it up - with battery

This circuit is standard, Negative GND. Your power supply should be

Tip Negative / Sleeve Positive. That’s the same as your standard pedals

(Boss etc), and you can safely daisy-chain your supply to this pedal.

The BOARD GND connections don’t all have to connect to one point. They

can be daisy-chained around the circuit, using larger connection points

(such as jack socket lugs) for multiple connections. As long as they all

connect together in some way.

BOARD

OUT

BOARD

GND

BOARD

GND

BOARD

GND

BOARD

INPUT

BATTERY

OUT

BOARD

GND

BOARD

LED+

(if using a daughterboard please refer to the relevant document)

Wire it up - DC only version

This circuit is standard, Negative GND. Your power supply should be

Tip Negative / Sleeve Positive. That’s the same as your standard pedals

(Boss etc), and you can safely daisy-chain your supply to this pedal.

The BOARD GND connections don’t all have to connect to one point. They

can be daisy-chained around the circuit, using larger connection points

(such as jack socket lugs) for multiple connections. As long as they all

connect together in some way.

PedalParts.co.uk

BOARD

OUT

BOARD

GND

BOARD

GND

BOARD

GND

BOARD

INPUT

OUT

BOARD

GND

BOARD

LED+

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