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Table of Contents
Related Manuals for Lithium Grim OmniWah
Summary of Contents for Lithium Grim OmniWah
- Page 1 OmniWah Building instructions V2.1...
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Page 2: Table Of Contents
OmniWah v2.1 Table of contents PCB layout ............................... 3 Build options ............................4 Vintage Wahs ............................4 Modern signature Wahs ........................4 Components ............................5 Inductor ............................... 5 Wah Pot ............................... 5 Resistors and capacitors ........................5 Configuration note ..........................6 Modifications ............................ -
Page 3: Pcb Layout
OmniWah v2.1 PCB layout Dimensions: 74 mm x 75 mm 2.91 inch x 2.95 inch 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... -
Page 4: Build Options
OmniWah v2.1 Build options This PCB can be used to mimic a wide range of vintage to modern wahs. Vintage Wahs • Thomas: Organ CryBaby • Vox: Grey Wah, v847, Clyde McCoy • Foxx: Foxx Fuzz Wah Octave (wah only) •... -
Page 5: Components
OmniWah v2.1 Components Since the OmniWah can be used to build so many different types of wahs, we split off the components section in to a separate document with all possible configurations. My advice: Capacitors with values < 1nF should be MLCC, values of 1nF – 1µF should be SMF/MKT/MKS and all values >... -
Page 6: Configuration Note
OmniWah v2.1 Configuration note P1-P3, P5 and P6 are arranged as onboard trimpots on the PCB. This is done because most of them are set and forget. However, you could choose to make them external by wiring a chassis pot to them. -
Page 7: Mechanical Sweeprange Mod
OmniWah v2.1 Mechanical Sweeprange mod If you are using an old crybaby shell, then you might want to remove the rubber underneath the heel of the wah plate. Also you might want to cut about half of the front 2 rubbers off. This way the sweeprange of the wah will increase dramatically. -
Page 8: Build Sequence
OmniWah v2.1 Build sequence 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. The trick to soldering a PCB is to work from small to big components. -
Page 9: Off Board Wiring
OmniWah v2.1 Off board wiring The version 2 of the OmniWah has been designed to be used in a standard Crybaby enclosure with either onboard soldered jacks or separate jacks (like the neutrik/rean type of input jacks). There are also 4 holes added for PCB stands in case you want to use a custom enclosure. -
Page 10: Footswitch With External Input And Output
OmniWah v2.1 In this case you will need to populate DC1, CONN IN and CONN OUT with PCB mounted jacks. 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. -
Page 11: Troubleshooting
OmniWah v2.1 Troubleshooting All PCB’s have been 100% factory e-tested and out of every batch I receive I build an effect to double check, so there should not be a connection problem on the PCB itself. The board is not working (at all), what now? •... -
Page 12: Schematic
OmniWah v2.1 Schematic 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...