griffin effects fx10 bifet v1.0

FX10 Bi-Fet Instructions © Griffin Effects 2014. All Rights Reserved http://griffineffects.com Email: contact@griffineffects.com is document is intended to guide you through building a FX10 Bi-Fet Preamp. e FX10 was made from 1982 to 1985. It was designed as a preamp for electric-acoustic instruments but most people these days use it as a clean boost for electric guitar. e Tone control al- lows for a bass or treble boost while the center position gives a flat response. is project has eliminated the CMOS switching and is set up for true bypass wiring and the PCB is designed to fit into a 1590B or similar enclosure. True bypass wiring is located at: http://griffineffects.com/howto/genegwiring.jpg e Griffin Effects Silent Step bypass is located at: http://griffineffects.com/store/switches/157-silent-step-true-bypass.html Legal Stuff: In no event shall Griffin Effects be liable for any indirect, incidental, collateral, exempary, puinitive, consequential or special damages or losses arising out of your purchase or in- stallation of this product and/or out of this warranty, including wihtou limitation, loss of use, profits, goodwill or saving or loss of data, music, electronic files, or programs that may have been stored by a user of the product even if Griffin Effects has been advised of the possibility of such damages or claims. is project is intended for 18 years and older.

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FX10 Bi-Fet Instructions

Griffin Effects 2014. All Rights Reservedhttp://griffineffects.com Email: [email protected]

This document is intended to guide you through building a FX10 Bi-Fet Preamp. The FX10 was made from 1982 to 1985. It was designed as a preamp for electric-acoustic instruments but most people these days use it as a clean boost for electric guitar. The Tone control al-lows for a bass or treble boost while the center position gives a flat response.

This project has eliminated the CMOS switching and is set up for true bypass wiring and the PCB is designed to fit into a 1590B or similar enclosure.

True bypass wiring is located at: http://griffineffects.com/howto/genegwiring.jpgThe Griffin Effects Silent Step bypass is located at: http://griffineffects.com/store/switches/157-silent-step-true-bypass.html

Legal Stuff:In no event shall Griffin Effects be liable for any indirect, incidental, collateral, exempary, puinitive, consequential or special damages or losses arising out of your purchase or in-stallation of this product and/or out of this warranty, including wihtou limitation, loss of use, profits, goodwill or saving or loss of data, music, electronic files, or programs that may have been stored by a user of the product even if Griffin Effects has been advised of the possibility of such damages or claims. This project is intended for 18 years and older.
Parts List:

R1 10K R2 39K R3 330K R4 100K R5 18K R6 47K R7 DDR R8 18K R9 3K3 R10 3K3 R11 1K R12 100K R13 22K R14 22K

C1 .01F filmC2 .02F filmC3 120pF ceramic C4 10F electro-pol C5 120pF ceramicC6 .022F filmC7 0.1F filmC8 10F electro-polC9 1F electro-pol C10 47F electro-pol C11 47F electro-pol

D1 LED D3 1N4001

IC1 TL062

TONE 100K-C PCB-MOUNTLEVEL 500K-C PCB-MOUNT

DC JackBattery SnapMono 1/4 JackStereo 1/4 Jack3PDT SwitchEnclosure

This board was designed to be used with 16mm Long Pin PCB mounted potentiometers but you can use whatever potentiometers you want.

R7 is the drop-down resistor for the LED. Choose the value based on the LED you use and how bright you want it.

Revisions:
Single Side PNP:

57mm

38mm

Stripboard: 29 holes, 21 strips
Button 1: