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ANDROMEDA DELUXE NATURAL OVERDRIVE

PARTS LIST, CONT.

PART VALUE

TYPE

NOTES

R33

5k1

Metal film resistor, 1/4W

R34

Metal film resistor, 1/4W

R35

1k2

Metal film resistor, 1/4W

R36

150k

Metal film resistor, 1/4W

R37

150k

Metal film resistor, 1/4W

R38

10k

Metal film resistor, 1/4W

R39

13k

Metal film resistor, 1/4W

R40

150k

Metal film resistor, 1/4W

R41

470R

Metal film resistor, 1/4W

LEDR

4k7

Metal film resistor, 1/4W

LED current-limiting resistor. Adjust value to change LED brightness.

68n

Film capacitor, 7.2 x 2.5mm

22n

Film capacitor, 7.2 x 2.5mm

150pF

MLCC capacitor, NP0/C0G

82n

Film capacitor, 7.2 x 2.5mm

220n

MLCC capacitor, X7R

2.2uF

Film capacitor, 7.2 x 5mm

220n

Film capacitor, 7.2 x 2.5mm

1uF

Film capacitor, 7.2 x 3.5mm

2n7

Film capacitor, 7.2 x 2.5mm

C10

82n

Film capacitor, 7.2 x 2.5mm

C11

Film capacitor, 7.2 x 2.5mm

C12

1uF

Film capacitor, 7.2 x 3.5mm

C13

22n

Film capacitor, 7.2 x 2.5mm

C14

27n

Film capacitor, 7.2 x 2.5mm

C15

100n

Film capacitor, 7.2 x 2.5mm

C16

8n2

Film capacitor, 7.2 x 2.5mm

C17

68n

Film capacitor, 7.2 x 2.5mm

C18

2n7

Film capacitor, 7.2 x 2.5mm

C19

Film capacitor, 7.2 x 2.5mm

C20

1uF

Film capacitor, 7.2 x 3.5mm

C21

8n2

Film capacitor, 7.2 x 2.5mm

C22

4n7

Film capacitor, 7.2 x 2.5mm

C23

82n

Film capacitor, 7.2 x 2.5mm

C24

1uF

Film capacitor, 7.2 x 3.5mm

C25

1uF

Film capacitor, 7.2 x 3.5mm

C26

100n

Film capacitor, 7.2 x 2.5mm

Summary of Contents for ANDROMEDA DELUXE

Page 1: ...ee new controls and a number of other small refinements Overdrive 1 0 1 2021 12 17 BUILD DIFFICULTY Intermediate Actual size is 2 3 x 2 42 main board and 1 78 x 0 86 bypass board This documentation is for the Deluxe version of the project Please make sure your PCB matches the above image a larger board with six knobs before proceeding since the part numbering is different The original Andromeda is...

Page 2: ...ixes the bass forward tone of the original a midrange control that can boost or cut and an overdrive de compress ODC control that gradually adds higher threshold clipping diodes in the soft clipping stage Each of the three knobs can be set to a position that emulates the original ODR 1 so the core circuit is the same change despite all the added features The Andromeda Deluxe is based on the audio ...

Page 3: ...istor 1 4W R9 2k2 Metal film resistor 1 4W R10 12k Metal film resistor 1 4W R11 10R Metal film resistor 1 4W R12 39k Metal film resistor 1 4W R13 12k Metal film resistor 1 4W R14 10k Metal film resistor 1 4W R15 5k1 Metal film resistor 1 4W R16 10R Metal film resistor 1 4W R17 10R Metal film resistor 1 4W R18 2k2 Metal film resistor 1 4W R19 150k Metal film resistor 1 4W R20 3k3 Metal film resisto...

Page 4: ...Film capacitor 7 2 x 2 5mm C5 220n MLCC capacitor X7R C6 2 2uF Film capacitor 7 2 x 5mm C7 220n Film capacitor 7 2 x 2 5mm C8 1uF Film capacitor 7 2 x 3 5mm C9 2n7 Film capacitor 7 2 x 2 5mm C10 82n Film capacitor 7 2 x 2 5mm C11 1n Film capacitor 7 2 x 2 5mm C12 1uF Film capacitor 7 2 x 3 5mm C13 22n Film capacitor 7 2 x 2 5mm C14 27n Film capacitor 7 2 x 2 5mm C15 100n Film capacitor 7 2 x 2 5mm...

Page 5: ...JFET N channel TO 92 Substitute Original uses 2N5486 Q2 2N5088 BJT transistor NPN TO 92 Substitute Original uses BC549C Q3 2N5088 BJT transistor NPN TO 92 Substitute Original uses BC549C IC1 RC4558P Operational amplifier DIP8 IC1 S DIP 8 socket IC socket DIP 8 IC2 RC4558P Operational amplifier DIP8 IC2 S DIP 8 socket IC socket DIP 8 DRIVE 250kA SPECT 50kB Original uses center detent but this is no...

Page 6: ...le in through hole format This PCB uses a hybrid through hole SMD outline for each JFET An extra G gate pad is included to accommodate surface mount devices without the need for adapters SMD JFETs should be oriented as follows All surface mount JFETs use the same pinout so this configuration will fit any type that we re aware of However always check the datasheet if you re uncertain they re diffic...

Page 7: ... 100R 68n 100R BC549C 1k2 2n7 100k 10k VB VA GND 1n 1uF 10k GND 4k7 8n2 GND VA GND 22k 4n7 5k1 82n 1k 1uF GND 1k2 1uF GND 150k 100n GND 150k VB 2u2 150k 470R 47uF GND GND GND D1 C30 1 2 3 SPECTRUM 1 2 3 LO_CUT LEVEL 1 2 3 1 2 3 ODC 1 2 3 DRIVE MID 1 2 3 C31 R1 R2 R3 R4 R5 R38 R39 C28 Q1 C1 C2 IC1A 2 3 1 IC1B 6 5 7 8 4 C3 D2 D3 D4 D5 R6 R7 C5 C4 R8 C6 R9 C7 C8 R10 C9 R11 R12 D6 D7 C10 R13 C11 R14 C...

Page 8: ...ike 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 from several parts suppliers Adjust size accordingly if using something different such as a 3mm bezel a plastic bezel or just a plain LED ø3 8 ø1 2 0 385 0 625 0 625 x 0 775 y 1 71 x 0 775 y 1 71 ø9 32 ø9 ...

Page 9: ...ANDROMEDA DELUXE NATURAL OVERDRIVE 9 ENCLOSURE LAYOUT Enclosure is shown without jacks See next page for jack layout and wiring 125B ...

Page 10: ...ANDROMEDA DELUXE NATURAL OVERDRIVE 10 WIRING DIAGRAM 125B IN V GND NC NC OUT PCB IN GND V V JACK GND JACK OUT IN GND GND PCB OUT ...

Page 11: ...pinions of others Projects may be used for commercial endeavors in any quantity unless specifically noted No attribution is necessary though a link back is always greatly appreciated The only usage restrictions are that 1 you cannot resell the PCB as part of a kit without prior arrangement and 2 you cannot goop the circuit scratch off the screenprint or otherwise obfuscate the circuit to disguise ...

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