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Related Manuals for Lithium Grim Humming Bee OD
Summary of Contents for Lithium Grim Humming Bee OD
- Page 1 Humming Bee OD Building instructions V2.0...
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Page 2: Table Of Contents
Humming Bee V2.0 Table of contents Components ............................3 General guideline for components......................4 General building tips ..........................4 Modifications ............................5 Offboard wiring ............................6 Troubleshooting ............................7 Schematic ..............................8... -
Page 3: Components
Humming Bee V2.0 Components Name Value Comment Name Value Comment SMF/MKT/Wima IC1 OPA275 100p MLCC/Ceramic A500k Drive (PCB mount) 220n SMF/MKT/Wima P2 B50k Focus (PCB mount) Electrolytic 25V+ P3 B50k Volume (PCB mount) SMF/MKT/Wima R1 1% metalfilm SMF/MKT/Wima R2 360k 1% metalfilm SMF/MKT/Wima R3 1% metalfilm... -
Page 4: General Guideline For Components
Humming Bee V2.0 General guideline for components • Capacitors: All values under 1nF should be ceramic disks. From 1nF up to 1uF should be SMF/MKT/Wima (foil/metalfilm capacitors) and over 1uF use electrolyte caps (or tantalum) 16V+ rated and watch out for polarity! •... -
Page 5: Modifications
Humming Bee V2.0 Besides the components mentioned in the table on the first page, you will need: • 2 input jacks. 2 mono jacks if you are not going to use a battery but only the 9V adapter. 1 mono (for output) and 1 stereo jack (for input) if you will be using both a 9V battery and the 9V adapter. -
Page 6: Offboard Wiring
Humming Bee V2.0 Offboard wiring Anode (long leg) Cathode (short leg) R led Ring Ring Sleeve Output Jack Input Jack Footswitch Notice that in the “off” position the effect input is connected to ground to prevent possible oscillation. The diagram is also based on star wiring where all ground connections go to the sleeve of the input jack. -
Page 7: Troubleshooting
Humming Bee V2.0 Troubleshooting All PCB’s have been e-tested 100% in the factory, so there should not be a connection problem on the PCB itself. The board is not working (at all), what now? • Check if your 9V is plugged in correctly (and/or soldered correctly on the board). •... -
Page 8: Schematic
Humming Bee V2.0 Schematic...