Mad Bean Pedals VFE Focus Quick Start Manual Download | Manualshive

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Summary of Contents for VFE Focus

Page 1: ...r guitar and amplifier without being stuck with the fixed filters of their usual boost pedal I approached Peter at VFE and he understood what I was after straight away the Focus was born very soon afterwards TIGHT Sets the frequency roll off point of the variable bass cut Turn counterclockwise to cut bass frequencies for a tighter bottom end RANGE 70Hz to 1 5kHz SMOOTH Sets the frequency roll off ...

Page 2: ...Note Use the values listed on the image above not the values indicated on the silk screen of the PCB Some values changed over time in the VFE product cycles Build Guide Dimensions 2 17 W x 2 025 H ...

Page 3: ...Trace Routing Knob Layout ...

Page 4: ...est not using the two 100R resistors on the BOM and doing jumpers instead Don t be like me building this project blindly and sticking two 100R 1 8W resistors in there without thinking be cause they fit the space 100R 1 8W resistors will drop your supply voltages like a tank in jello At the roughly 60mA current draw on the Focus you will end up with a whopping 2 2v drop across each resistor This co...

Page 5: ... mouser com Search ProductDetail aspx R OPA2134PAvirtualkey 59500000virtualkey595 OPA2134PA http www smallbear electronics mybigcommerce com ic opa2604ap DPDT On On Pin Mount http www smallbear electronics mybigcommerce com dpdt on on short lever pc mount 9mm Plastic Shaft 1kB http smallbear electronics mybigcommerce com alpha single gang 9mm right angle pc mount w knurled plastic shaft 16mm PCB M...

Page 6: ...e shown on the Trace layout on pg 2 has this resistor on the PCB PS Insofar as I can tell there is not real difference in v1 1 1 2 or 1 3 of the PCB other than this 1M resistor He may have done small tweaks on the trace routing or values but the values listed in the BOM are for the last version which is 1 3 All voltages on the ICs should read about 0v DC except pins 8 and 4 Pin8 all 7 86v Pin4 all...

Page 7: ...Wiring This project does require a charge pump on the Switching Board ...

Page 8: ...Schematic ...

Page 9: ...en before adding the 1M jumper across the DPDT right under the Focus v1 1 text Also the 100R resistors are on the PCB because I elected to short them on the bottom rather than remove them to lessen the chance of damaging it ...

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