Lithium Grim Snail Gear Building Instructions Download Page 3 | Manualshive

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Snail Gear v1.1

3

Components

Name Value

Comment

Name Value

Comment

C1

47n

MKT

R1

1k

C2

22n

MKT

R2

470k

C3

1u

Electrolyte

R3

10k

C4

47u

Electrolyte

R4

22k

C5

1u

Electrolyte

R5

3k3

C6

470n

Electrolyte!

R6

470k

C7

33n

MKT

R7

47k

C8

1u

Electrolyte

R8

1M

C9

22n

MKT

R9

1M

C10

1u

Electrolyte

R10

1M

C11

10u

Electrolyte

R11

10k

C12

1n

MKT

R12

1k

C13

1u

Electrolyte

R13

100k

C14

1u

Electrolyte

R14

470R

C15

47n

MKT

R15

220k

C16

10u

Electrolyte

R16

390R

C17

33u

Electrolyte

R17

1M

C18

10u

Electrolyte

R18

1k

D1

Zener 5,6V

R19

390k

D2

1n4148

R20

4k7

D3

1n4148

R21

4k7

D4

1n4148

R22

100k

IC1

TL071

R23

100k

Q1

BC549C

R24

10k

Q2

2SK30A

2N5457 use extra D pad

R25

22k

Q3

BC549C

R26

22k

Q4

BC549C

R27

1M

Q5

BC549C

Match with Q6

VR1

A100k Sensitivity

Q6

BC549C

Match with Q5

VR2

B25k

Attack

VR3

B10k

BIAS Trim pot

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Summary of Contents for Snail Gear

Page 1: ...Snail Gear Building instructions V1 1 ...

Page 2: ...difications 6 Biasing 7 Off board wiring 7 Troubleshooting 8 Schematic 9 Read this entire manual thoroughly before you start to building the effect Especially the Modification and Biasing part Decide before building the effect which mods you want to try so that you do not need to desolder parts later Last update 26 02 2017 ...

Page 3: ...u Electrolyte R11 10k C12 1n MKT R12 1k C13 1u Electrolyte R13 100k C14 1u Electrolyte R14 470R C15 47n MKT R15 220k C16 10u Electrolyte R16 390R C17 33u Electrolyte R17 1M C18 10u Electrolyte R18 1k D1 Zener 5 6V R19 390k D2 1n4148 R20 4k7 D3 1n4148 R21 4k7 D4 1n4148 R22 100k IC1 TL071 R23 100k Q1 BC549C R24 10k Q2 2SK30A 2N5457 use extra D pad R25 22k Q3 BC549C R26 22k Q4 BC549C R27 1M Q5 BC549C...

Page 4: ...Snail Gear v1 1 4 PCB layout ...

Page 5: ...o you ll need to use the extra D pad for the 2N5457 The original Attack pot is B20K You can easily use the readily available B25K or you can place a 100K resistor between pins 1 and 3 to lower the B25K to B20K B25K 100k Soldering this board can be very complicated for some people since the solder pads are very close together Use a magnifying glass to make the job easier If you want to experiment w...

Page 6: ...similar in your favorite color A Hammond 1590BB will give you more room to build especially when using the swell mod Modifications Swell MOD You can extend the swell time by changing C6 to a higher value Especially for this mod the SW1 is added to the board If you do not decide to use the mod then leave out the SW1 If you do want to use the mod I suggest using a DP3T ON OFF ON switch with the 4 7u...

Page 7: ...thout volume loss NB the Sensitivity pot is used to adapt the effect to the amount of input the effect gets like an input boost If you use a booster fuzz in front of the effect you will need to lower the Sensitivity to get the optimal result Off board wiring S Tip Sleeve Sleeve Output Jack Input Jack Cathode short leg Anode long leg Footswitch Ring R led Tip The LEDs requires a resistor R led in t...

Page 8: ... MKT capacitors and resistors do not need to be oriented Check if you used the correct values of the components For resistors you can look here http www diyaudioandvideo com Electronics Color Double and triple check your soldering A loose or cold solder can be really bad for your board Replace the IC s and transistors one might be defective Before doing that first unplug the 9V and wait 5 seconds ...

Page 9: ...Snail Gear v1 1 9 Schematic ...

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