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Aion Electronics Phobos Germanium Fuzz, Manual

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Aion Electronics Phobos Germanium Fuzz Manual Download Page 7

SCHEMATIC

PHOBOS GERMANIUM FUZZ

7

GND

2M

2

1N5817

100uF

10

0k

A

100kB

+9V

PWR_GND

100n

VA

47

k

Ge

10

k

22

0n

1N

47

42

TC1044SCPA

10uF

PWR_GND

PWR_GND

47uF

-VA

PWR_GND

GND

Ge

1k

-VA

Ge

18

k

1k

10

k

2n

2

GND

GND

10

kB

10kB

10

k

470n

10

0n

GND

22

0k

220pF

-VA

3k

3

10uF

GND GND

Ge

GND

-VA

10

0k

B

GND

10

0n

GND

220k

IN

OUT

RP

D

D1

C7

LE

VE

L

1

2

3

FUZZ

1

2

3

C11

R1

Q1

R4

C3

Z1

1

2

3

4

5

6

7

8

IC1

C8

C9

Q2

R3

Q3

R6

R7

R8

C6

Q1

-2

BI

AS

1

2

3

Q3 BIAS

1

2

3

R9

C10

C1

R2

C2

R5

C4

D2

TO

NE

1

2

3

C5

R10

GND

Summary of Contents for Phobos Germanium Fuzz

Page 1: ...RY DOCUMENT VERSION Tone Bender Mk III 3 knob A reproduction of the third version of the Tone Bender germanium fuzz sold by Macaris in London in the late 1960s Germanium fuzz 1 0 0 2020 07 03 BUILD DI...

Page 2: ...and was a contemporary clone The Elka Dizzytone and the Prescription Electronics Yard Box were two others Aside from the Buzzaround all of the rest of these variations can be build on this PCB A note...

Page 3: ...R9 10k Metal film resistor 1 4W R10 220k Metal film resistor 1 4W RPD 1M Metal film resistor 1 4W Input pulldown resistor Can be as low as 1M LEDR 4k7 Metal film resistor 1 4W LED current limiting re...

Page 4: ...C1 S DIP 8 socket IC socket DIP 8 Q1 2B 10k trimmer Trimmer 10 1 4 Bias trimmer for Q1 and Q2 See build notes Q3B 10k trimmer Trimmer 10 1 4 Bias trimmer for Q3 See build notes FUZZ 100kB 16mm right a...

Page 5: ...ne since this stage just boosts the signal a bit This can also significantly reduce the noise since silicon is much quieter than germanium Biasing The Phobos Fuzz project is set up to allow for easy b...

Page 6: ...ed to keep the Fuzz control in place If it s turned all the way up the unit is stock but this way you still have the option to turn it down Prescription Electronics Yard Box C4 4 7uF Fuzz 250kB The Ya...

Page 7: ..._GND 47uF VA PWR_GND GND Ge 1k VA Ge 18k 1k 10k 2n2 GND GND 10kB 10kB 10k 470n 100n GND 220k 220pF VA 3k3 10uF GND GND Ge GND VA 100kB GND 100n GND 220k IN OUT RPD D1 C7 LEVEL 1 2 3 FUZZ 1 2 3 C11 R1...

Page 8: ...ssumes the use of closed frame jacks like the Switchcraft 111X If you d rather use open frame jacks please refer to the Open Frame Jack Drill Template for the top side LED hole drill size assumes the...

Page 9: ...PHOBOS GERMANIUM FUZZ 9 ENCLOSURE LAYOUT Enclosure is shown without jacks See next page for jack layout and wiring 125B...

Page 10: ...AM 125B IN V GND GND N C OUT PCB IN GND V V JACK GND JACK OUT IN GND GND PCB OUT Shown with optional 9V battery If battery is omitted both jacks can be mono rather than one being stereo Leave the far...

Page 11: ...as suggestions based on the experience and opinions of others Projects may be used for commercial endeavors in any quantity unless specifically noted No attribution is necessary though a link back is...

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