FuzzDog PHASE 90 Quick Start Manual Download Page 3

Page: 3 / 8

Sch BOM

10K

470K

150K

56K

150K

10K

22K

R10

10K

R11

10K

R12

22K

R13

10K

R14

10K

R15

22K

R16

10K

R17

10K

R18

22K

R20

150K

R21

3M9

R22

150K

R23

4K7

R24

470K

R25

150K

R26

47R

R27

10K

R28

R30

5.1v zener

1N4001

LED

2N5087

Q2-5

Matched FETs*

IC1

TL072

IC2

TL074

10n

47n

10n

15u elec

C10

100u elec

C11

100n

C12

22u

SPEED

500KC

FBACK

47K trim**

BIAS

250K trim

* / ** see page 5

Summary of Contents for PHASE 90

Page 1: ...PHASE 90 One knob of glorious phasey phun Contents of this document are 2019 Pedal Parts Ltd No reproduction permitted without the express written permission of Pedal Parts Ltd All rights reserved ...

Page 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...

Page 3: ... 10K R17 10K R18 22K R20 150K R21 3M9 R22 150K R23 4K7 R24 470K R25 150K R26 47R R27 10K R28 1M R30 1M D1 5 1v zener D2 1N4001 D3 LED Q1 2N5087 Q2 5 Matched FETs IC1 TL072 IC2 TL074 C1 10n C2 47n C3 47n C4 47n C5 47n C6 47n C7 47n C8 10n C9 15u elec C10 100u elec C11 100n C12 22u SPEED 500KC FBACK 47K trim BIAS 250K trim see page 5 ...

Page 4: ......

Page 5: ...ld The board is designed for 2N5457 If you re using different FETs check your pinout BIASING Use the bias trimmer to adjust the voltage at the gates of the FETs You can do this by ear simply tweaking until you get the best phasing effect If you want to do it by numbers it should be around 3V FEEDBACK We ve added space for a trimmer for the feedback setting The standard parts for this are Script lo...

Page 6: ...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...

Page 7: ... jack then daisy chain that over to the OUT jack It doesn t matter how they all connect as long as they do 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 L E D BOARD OUT BOARD 9V BOARD GND BOARD GND BOARD GND BOARD INPUT BATTERY IN OUT L E D BOAR...

Page 8: ... Parts Ltd can accept no responsibility for incorrect drilling of enclosures FuzzDog co uk Drilling template 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 Recommended drill sizes Pots 7mm Jacks 10mm Footswitch 12mm DC Socket 12mm Toggle switches 6mm ...

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