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SnoWahFlake v2.0 

 

Manufacturers and product names are mentioned solely for circuit identification, and where applicable their trademarks are the 
property of their respective owners who are in no way associated or affiliated with the author. No cooperation or endorsement 

is implied.

 

Components 

 

Name  Value 

Comment 

Name  Value  Comment 

C1 

22n 

SMF 

R1 

10k 

1% metalfilm 

C2 

1u 

SMF 

R2 

1M 

1% metalfilm 

C3 

22n 

SMF 

R3 

1M 

1% metalfilm 

C4 

22n 

SMF 

R4 

10k 

1% metalfilm 

C5 

1u 

SMF 

R5 

5K1 

1% metalfilm 

C6 

220n 

SMF 

R6 

330R  1% metalfilm 

C7 

68n 

SMF 

R7 

330R  1% metalfilm 

C8 

8n2 

SMF 

R8 

6k8 

1% metalfilm 

C9 

1u 

Electrolyte 

R9 

4k7 

1% metalfilm 

C10 

100u 

Electrolyte 

R10 

6k8 

1% metalfilm 

C11 

100n 

MKT 

R11 

330R  1% metalfilm 

C12 

47u 

Electrolyte 

R12 

330R  1% metalfilm 

C13 

100n 

MKT 

R13 

4k7 

1% metalfilm 

D1 

1N5817 

  

R14 

6k8 

1% metalfilm 

D2 

1N4001 

  

R15 

1k 

1% metalfilm 

D3 

1N4148 

  

R16 

100k  1% metalfilm 

D4 

1N4148 

  

R17 

22k 

1% metalfilm 

D5 

1N34A 

 

R18 

22k 

1% metalfilm 

IC1 

LM13700 

  

R19 

22k 

1% metalfilm 

IC2 

TL074 

 

R20 

10k 

1% metalfilm 

P1 

B100k 

Sensitivity 

R21 

4M7  1% metalfilm 

P2 

B50k 

Resonance 

R22 

4M7  1% metalfilm 

P3 

C1M 

Decay 

R23 

330R  1% metalfilm 

P4 

B50k 

Bias 

R24 

4k7 

1% metalfilm 

VR1 

B50k 

Sensitivity Offset 

R25 

6k8 

1% metalfilm 

Q1 

2N5457 

  

R26 

4k3 

1% metalfilm 

Q2 

BC550C 

  

R27 

3k6 

1% metalfilm 

Q3 

BC550C 

  

R28 

100R  1% metalfilm 

REG1 

LM78L05 

  

R29 

47k 

1% metalfilm 

SW1 

Switching jack  Sidechain 

R30 

47k 

1% metalfilm 

 

 

A=Log, B=Lin, C=Rev. Log

 

Содержание SnoWahFlake

Страница 1: ...SnoWahFlake Building instructions V2 0 ...

Страница 2: ...ration or endorsement is implied 2 Table of contents PCB layout 3 Components 4 Modifications 5 Build sequence 6 Off board wiring 7 Potentiometers 7 Side Chaining 7 Footswitches and stargrounding 8 Troubleshooting 9 Schematic 10 Read this entire manual thoroughly before you start building the effect There are some available options and mods and you should choose which one you want to incorporate be...

Страница 3: ... for circuit identification and where applicable their trademarks are the property of their respective owners who are in no way associated or affiliated with the author No cooperation or endorsement is implied 3 PCB layout Dimensions 50 mm x 60 5 mm 1 97 inch x 2 38 inch ...

Страница 4: ...lectrolyte R9 4k7 1 metalfilm C10 100u Electrolyte R10 6k8 1 metalfilm C11 100n MKT R11 330R 1 metalfilm C12 47u Electrolyte R12 330R 1 metalfilm C13 100n MKT R13 4k7 1 metalfilm D1 1N5817 R14 6k8 1 metalfilm D2 1N4001 R15 1k 1 metalfilm D3 1N4148 R16 100k 1 metalfilm D4 1N4148 R17 22k 1 metalfilm D5 1N34A R18 22k 1 metalfilm IC1 LM13700 R19 22k 1 metalfilm IC2 TL074 R20 10k 1 metalfilm P1 B100k S...

Страница 5: ...ifferent pinout than the BC550C It needs to be rotated 180o You can of course incorporate SW1 for side chaining in any of the versions and feel free to experiment with mixing the optimizations and mods You can also choose to not incorporate side chaining in the fully modded version by soldering a jumper wire in the SW1 pad Because there is no 7k9 resistor in exsistance I chose to split it in 2 res...

Страница 6: ...iment with other transistors then you could socket them instead of soldering them to the board You ll need a some 20 SIL sockets break off the sockets and solder them to the board Now is the time to solder these sockets on the PCB Place the transistors only once you are finished with all soldering and off board wiring Now continue by soldering the socket for the IC s the small SMF trimpots and the...

Страница 7: ...ing the effect you introduce the original guitar signal back in the effect This is especially handy when you are placing the autowah after heavy distortion or fuzz These type of effects will mess with the triggering of the autowah For this you will however need a signal splitter at the beginning of your signal chain Here is an example and of course I also sell a good signal splitter if needed Sign...

Страница 8: ...tch Sleeve R led Note that R led is a 4k7 resistors You can change this value depending on the type of LED you use but 4k7 is safe enough for almost all LEDs 9V It is now time to place your transistors in the sockets if needed Connect everything build it in your enclosure and enjoy your effect The sleeve on the output jack is not connected on purpose Make sure the output jack is in good electronic...

Страница 9: ...you oriented the capacitors IC s transistors and diodes the right way SMF MKT and ceramic capacitors as well as resistors do not need to be oriented A likely sign of incorrect capacitors and or orientation is when an effect is sputtering rumbling or motorboating Check if you used the correct values of the components For resistors you can look here http www diyaudioandvideo com Electronics Color Do...

Страница 10: ...mes are mentioned solely for circuit identification and where applicable their trademarks are the property of their respective owners who are in no way associated or affiliated with the author No cooperation or endorsement is implied 10 Schematic ...

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