Mad Bean Pedals Green Bean Quick Start Manual Download | Manualshive

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Green Bean

FX Type: Overdrive

Based on the Ibanez® Tube Screamer™

© madbeanpedals

2015 version

1.95" W x 1.95" H

Terms of Use: You are free to use purchased Green Bean circuit boards for both DIY
and small commercial operations. You may not offer Green Bean boards for resale or as
part of a “kit” in a commercial fashion. Peer to peer re-sale is, of course, okay

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Summary of Contents for Green Bean

Page 1: ...als 2015 version 1 95 W x 1 95 H Terms of Use You are free to use purchased Green Bean circuit boards for both DIY and small commercial operations You may not offer Green Bean boards for resale or as part of a kit in a commercial fashion Peer to peer re sale is of course okay ...

Page 2: ...adbean version Resistors Caps Diodes IC Transistors Switches Pots R1 omit C1 20n D1 D3 your choice R2 1k C2 1uF D4 D5 1n914 R3 510k C3 51pF D6 1N5817 R4 10k C4 47n R5 10k C5 120n IC1 JRC4558 R6 4k7 C6 220n R7 51k C7 220n Q1 Q2 2SC1815 R8 1k C8 1uF R9 10k C9 100n FAT On On R10 220R C10 1uF AS SYM On On R11 1k C11 100uF R12 1k C12 100n TONE 20kW R13 510k C13 47uF DRIVE 500kA R14 10k VOL 100kB R15 10...

Page 3: ... 1 4W 1M 2 Metal Carbon Film 1 4W 100pF 1 Ceramic Film Mica 25v min 47n 2 Film 25v min 100n 2 Film 25v min 120n 1 Film 25v min 220n 2 Film 25v min 1uF 3 Film 25v min 47uF 1 Electrolytic 25v min 100uF 1 Electrolytic 25v min 1n914 3 D4 D5 2 LED Germanium Silicon 1N5817 1 JRC4558 1 or other Si 2 2N5088 89 or BC550 On On 2 SPDT solder lugs 20kW 1 PCB Right Angle 16mm 500kA 1 PCB Right Angle 16mm 100kA...

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Page 5: ...5 1590B Drill Guide 4 44 W x 6 46 H ...

Page 6: ...6 Wiring Guide Pots switches and indicator LED are soldered directly to the PCB ...

Page 7: ...ommon value It will lower the minimum gain slightly but almost imperceptibly C1 Who has a 20n film cap Not me 47n also lets a little more bass into in the circuit 27n is another popular alternative C3 I use 100pF instead of 51pF because it smoothes out the high frequency range a bit more when the Gain pot is all the way up This helps balance out the Tone pot IMO the Tone pot at full up can get a l...

Page 8: ...iodes This is the same as the Comp Cut mode on the Fulldrive 2 The two toggle switches while better located now as still fairly close to the Gain knob For this reason I suggest not using HUGE knobs for this build 1 2 3 4 diameter should be fine Lastly you can go up to 1MA on the Gain pot for more overdrive This tends to make less difference on the 1n914 diodes since they are fairly saturated at 54...

Page 9: ...9 Hey you liar You said you use 100kA for VOL True but I was also out of them when I did this verification build The blue LED s I picked kinda suck so I will be changing those too It was worth a try ...

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