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SCHEMATIC

OSIRIS DISTORTION/SUSTAINER

5

GND

2M

2

1N5817

100uF

GND

25kB

+9V

100n

VA

GND

GND

GND

GND

GND

GND

GND

GND

GND

GND

GND

GND

390k

10

0k

470k

1k

10

k

1k

6k2

10

0k

470k

10

0R

10

k

6k2

10

0k

470k

10

0R

10

k

47

0k

47

0k

10

0k

10

k

2k

2

1u

F

470pF

47

0n

47

n

470pF

47n

47

n

470pF

47n

10

n

22n

47

n

1u

F

MPSA18

2N5089

2N5089

2N5089

10

0k

B

25

0k

B

10

0k

A

VA

VA

VA

VA

VA

1N914

1N914

1N914

1N914

47R

39k

RP

D

D1

C14

HIGH

1

2

3

IN

OUT

C15

R2

R3

R4

R5

R6

R7

R8

R9

R10

R1

1

R1

2

R13

R1

4

R15

R1

6

R1

7

R1

8

R1

9

R2

0

R2

1

R2

2

C1

C2

C3

C4

C5

C6

C7

C8

C9

C1

0

C11

C1

2

C1

3

Q1

Q2

Q3

Q4

FU

ZZ

1

2

3

TO

NE

1

2

3

VO

LU

M

E

1

2

3

D2

D3

D4

D5

R23

HI-LO

2

3

1

SI-GE

2

3

1

R1

D6

D7

D8

GND

Summary of Contents for OSIRIS

Page 1: ...ck Arts Toneworks Pharaoh Based on the classic Big Muff circuit this pedal adds a high low impedance switch a diode selector switch and a high end control inside the tone stack Distortion Sustainer Fu...

Page 2: ...miliar sound while germaniums will be more compressed and gainy but also softer with a more rounded clipping waveform Third a High control has been added to the bass side of the tone control rotation...

Page 3: ...m resistor 1 4W R10 470k Metal film resistor 1 4W R11 100R Metal film resistor 1 4W R12 10k Metal film resistor 1 4W R13 6k2 Metal film resistor 1 4W R14 100k Metal film resistor 1 4W R15 470k Metal f...

Page 4: ...um diode Exact part number is unimportant Any germanium should work here D8 1N34A Germanium diode Exact part number is unimportant Any germanium should work here Q1 MPSA18 BJT transistor NPN TO 92 Q2...

Page 5: ...10k 2k2 1uF 470pF 470n 47n 470pF 47n 47n 470pF 47n 10n 22n 47n 1uF MPSA18 2N5089 2N5089 2N5089 100kB 250kB 100kA VA VA VA VA VA 1N914 1N914 1N914 1N914 47R 39k RPD D1 C14 HIGH 1 2 3 IN OUT C15 R2 R3 R...

Page 6: ...ks 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 use of a 5mm LED bezel available f...

Page 7: ...OSIRIS DISTORTION SUSTAINER 7 ENCLOSURE LAYOUT Enclosure is shown without jacks See next page for jack layout and wiring 125B...

Page 8: ...AGRAM 125B IN V GND N C 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 f...

Page 9: ...ly 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...

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