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FuzzDog Phase 45 Manual

Swooshy goodness with some interesting mods
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Phase 45
Swooshy goodness with
some interesting mods
Contents of this document are ©2016 Pedal Parts Ltd.
No reproduction permitted without the express written
permission of Pedal Parts Ltd. All rights reserved.

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Summary of Contents for FuzzDog Phase 45

  • Page 1 Phase 45 Swooshy goodness with some interesting mods Contents of this document are ©2016 Pedal Parts Ltd. No reproduction permitted without the express written permission of Pedal Parts Ltd. All rights reserved.
  • Page 2 Schematic + BOM Q1,2 Matched FETS* (2N5457, 2N5952 etc) 1N4001 100n 5.1v zener IC1,2 TL072 20KB** 150K SPEED 500KC*** 470K BIAS 220-500K Trim or pot ‡ DPDT ON-ON ‡‡ 470K *Watch your pinouts. The PCB is designed for 2N5457 but other FETs may need rotating.
  • Page 3 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. Check the separate daughterboard document for details. Be very careful when soldering the diodes and transistors.

  • Page 4: Mix Control

    MODS Mix Control External Bias By altering the amount of phased signal in the Simply use a pot instead of the trimmer for mix you can get a wide range of sounds, from the BIAS control. 250KB is best. phasing to a kind of pitch-shifted vibrato. Use a 20KB pot and leave out R8 and R9.
  • Page 5 Test the board! BATTERY 9V GND Your nice, new circuit board INCLUDING WIRED POTS!!!! UNDER NO CIRCUMSTANCES will troubleshooting help be offered if you have skipped this stage. No exceptions. Once you’ve finished the circuit it makes sense to test is before starting on the switch and LED wiring.
  • Page 6 Wire it up (if using a daughterboard please refer to the relevant document) BOARD BOARD INPUT BOARD BOARD BOARD BOARD LED+ BOARD BOARD BATTERY Wiring shown above will disconnect the battery when you remove the jack plug from the input, and also when a DC plug is inserted. The Board GND connections don’t all have to directly attach to the board.

  • Page 7: Drilling Template

    Wiggle room = good! 32mm This template is a rough guide only. You should ensure correct marking of your enclosure before drilling. You use this template at your own risk. Pedal Parts Ltd can accept no responsibility for incorrect drilling of enclosures. FuzzDog.co.uk...