Mad Bean Pedals KINGMAKER User manual

KingmakerKingmaker
FX TYPE: Flanger
Based on the Pearl® FG-01™
Enclosure Size: 1590BB
“Softie” compatibility: none
© 2023 madbeanpedals
Overview
The Pearl FG-01 was a lesser known contemporary of some of the 1980’s compact anger pedals
like the Boss BF-2 or DOD FX-75. Design-wise it is familiar and you will nd similar circuit blocks
used in the BF-2 and the MXR.
The FG-01 utilized the MN3207/MN3102 BBD/Clock pair. The Kingmaker project allows you to use
the original chips or the MN3007/MN3101.
Controls
• RATE - Modulation speed.
• MANUAL - The MANUAL control has some e󰀨ect on most DEPTH settings. With the DEPTH
full CCW, the MANUAL control produces ringmod tones. As DEPTH is turned up the MANUAL
control will change the center frequency of the anger in its normal operation.
• DEPTH - Modulation intensity.
• FDBK - Modulation feedback amount.
• BIAS - This trimmer sets the voltage input bias of the BBD.
• T1 - This trimmer sets the frequency range of the clock.
• T2 - This trimmer sets the max DEPTH setting.
• T3 - This trimmer sets the maximum amount of audio signal that is fed back through the circuit.
Terms of Use: You are free to use purchased Kingmaker circuit boards for both DIY and small commercial operations. You may not
oer Kingmaker PCBs for resale or as part of a “kit” in a commercial fashion. Peer to peer re-sale is ne, though.
Technical assistance for your build(s) is available via the madbeanpedals forum. Please go there rather than emailing me for
assistance on builds. This is because (1) I’m not always available to respond via email in a timely and continuous manner, and (2)
posting technical problems and solutions in the forum creates a record from which other members may benet.

Parts Kingmaker
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Values Kingmaker
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Traces Kingmaker
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B.O.M. Kingmaker
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Resistors Resistors Caps Diodes
R1 1M R27 10k C1 33n D1 1n914
R2 1k R28 22k C2 22n D2 1n914
R3 1M R29 4k7 C3 4n7 D3 1n5817
R4 10k R30 47k C4 2n2 D4 5.1v Zener
R5 10k R31 1k C5 1uF Transistors
R6 1M R32 10k C6 4n7 Q1 2n5088
R7 47k R33 10k C7 200pF Q2 2N5088
R8 10k R34 2k2 C8 1uF Q3 2N5088
R9 47k R35 10k C9 1uF Q4 2N5088
R10 22k R36 330k C10 1uF ICs
R11 22k R37 33k C11 3n3 IC1 TL062
R12 100k R38 47k C12 3n3 IC2 TL062
R13 1k R39 100k C13 1n IC3 MN3x07
R14 10k R40 330k C14 1uF IC4 MN310x
R15 10k R41 1M C15 1uF IC5 TL022
R16 10k R42 10k C16 10uF Trimmers
R17 10k R43 220k C17 47uF BIAS 20k
R18 4k7 R44 100k C18 33n T1 100k
R19 100k R45 150k C19 100n T2 250k
R20 100k R46 1k C20 330n T3 10k
R21 100k R47 10k C21 200pF Pots
R22 2k4 R48 10k C22 10uF FDBK 10kC
R23 2k4 R49 4k7 C23 220uF DEPTH 100kB
R24 220k R50 2k2 C24 100n MANUAL 100kB
R25 10k R51 10k C25 47uF SPEED 250kA
R26 10k R52 100R C26 47uF

Shopping List Kingmaker
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Value Qty Type Rating Value Qty Type Rating
100R 1 Carbon / Metal Film 1/4W 1uF 1 Electrolytic 16v min.
1k 4 Carbon / Metal Film 1/4W 10uF 2 Electrolytic 16v min.
2k2 2 Carbon / Metal Film 1/4W 47uF 3 Electrolytic 16v min.
2k4 2 Carbon / Metal Film 1/4W 220uF 1 Electrolytic 16v min.
4k7 3 Carbon / Metal Film 1/4W 1n914 2
10k 17 Carbon / Metal Film 1/4W 1n5817 1
22k 3 Carbon / Metal Film 1/4W 5.1v 1 Zener diode 1W
33k 1 Carbon / Metal Film 1/4W 2N5088 4
47k 4 Carbon / Metal Film 1/4W TL062 2
100k 6 Carbon / Metal Film 1/4W MN3x07 1 MN3207 or MN3007
150k 1 Carbon / Metal Film 1/4W MN310x 1 MN3102 or MN3101
220k 2 Carbon / Metal Film 1/4W TL022 1
330k 2 Carbon / Metal Film 1/4W 10k 1 Bourns 3362p
1M 4 Carbon / Metal Film 1/4W 20k 1 Bourns 3362p
200pF 2 Ceramic / MLCC 16v min. 100k 1 Bourns 3362p
1n 1 Film 16v min. 250k 1 Bourns 3362p
2n2 1 Film 16v min. 10kC 1 PCB Right Angle 16mm
3n3 2 Film 16v min. 100kB 2 PCB Right Angle 16mm
4n7 2 Film 16v min. 250kA 1 PCB Right Angle 16mm
22n 1 Film 16v min.
33n 2 Film 16v min.
100n 2 Film 16v min.
330n 1 Film 16v min.
1uF 5 Film 16v min.

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Parts Guide Kingmaker
Currently you can nd the MN3207, MN3102, v3207 and v3102 in stock at Cabintech:
https://cabintechglobal.com/semi
smallbear currently has the MN3007 (NOS and Xvive remakes) in stock:
https://smallbear-electronics.mybigcommerce.com/ic-mn3007-bbd/
https://smallbear-electronics.mybigcommerce.com/mn3007-xvive-audio-bbd-ic-dip-8/
smallbear also has a few MN3101:
https://smallbear-electronics.mybigcommerce.com/ic-mn3101/
TL022:
https://stompboxparts.com/semiconductors/tl022cp-dual-op-amp-ic/
https://www.taydaelectronics.com/tl022cp-tl022-operational-amplier-ic.html
Bourns 3362p trimmers:
https://www.taydaelectronics.com/potentiometer-variable-resistors/cermet-potentiometers/3362p.html
16mm Right Angle Pots:
http://smallbear-electronics.mybigcommerce.com/alpha-single-gang-16mm-right-angle-pc-mount/
DC Jacks:
https://smallbear-electronics.mybigcommerce.com/2-1-mm-all-plastic-round/
https://stompboxparts.com/power-connections/dc-power-jack-2-1mm-low-prole/
https://lovemyswitches.com/thinline-lumberg-dc-power-jack-2-1mm/
1/4” jacks:
https://smallbear-electronics.mybigcommerce.com/1-4-in-mono-nys229/
https://smallbear-electronics.mybigcommerce.com/1-4-in-mono-switchcraft-11/
https://lovemyswitches.com/1-4-mono-jack-lumberg-klbm-3/
https://lovemyswitches.com/1-4-mono-jack-neutrik-rean-nys229/
My preferred 3PDT switch:
https://lovemyswitches.com/pro-3pdt-latched-foot-switch-solder-lugs-feather-soft-click/

Notes Kingmaker
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The Kingmaker allows for two di󰀨erent versions of the BBD and clock.
MN3007 BBD and MN3101 clock
You can use NOS chips for both or the NOS MN3101 and Xvive remake of the 3007 (there are no current
production remakes of the MN3101 clock).
3207 BBD and 3102 clock
Any manufacturer of these can be used and even mixed with one another. You can use MN3207, MN3102,
v3207, v3102, BL3207 or BL3102. I used the BL versions for my build. The only caveat is you cannot use
the 3102 clock with an MN3QA007 or a 3207 BBD with an MN3101 clock.
The Kingmaker PCB has two jumpers you need to set according to which BBD and clock you are using.
The jumper spots are located next to R22 and R23. You can solder the jumpers directly to the PCB or use
sockets (in case you ever want to try the other combo later).
Quickstart Calibration
Potentiometers
SPEED and MANUAL @25%
DEPTH and FDBK @ 50%
Trimmers
T3 @ 0% (full CCW)
T2 @ 25%
BIAS, T1 @ 50%
With the e󰀨ect on and audio feed through the circuit you should hear some anging with the settings above.
Adjust the BIAS trimmer until you get the cleanest audio output possible. It should be right around the 50%
mark but you may have to tweak the position slightly.
T1 adjusts the clock frequency range. As you turn CCW, the LFO will become stronger but more
asymmetrical. When turned CW, the anging e󰀨ect will shallow out. I found the right setting to be just about
50%, luckily.
Turning T2 CW will increase the range of the DEPTH control. However, I found it worked best at around 25%
to keep in balance with the FDBK and MANUAL controls.
T3 acts as a limit on the FDBK control. With T3 CCW, turn FDBK all the way up. Leave DEPTH at full and
SPEED about 1/3rd or so. Slowly adjust T3 clockwise until you get self-oscillation. Back T3 o󰀨 just a bit to
eliminate it. Now your FDBK control has the most range possible without oscillation.

Wiring Diagram Kingmaker
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1590BB Drill Guide Kingmaker
Note: Drill Guides are approximate and may require tweaking depending on the types of jacks, switches and pots you use.
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The input and output jacks are placed together to keep them as far away from the LFO/
Speed knob as possible.

Voltages Kingmaker
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• 9.42vDC One Spot
• Current Draw: ~8mA
• All knobs set @ 50%
IC1 TL062 IC4 3102 Q1 2n5088
1 4.88 1 9.06 C 9.25
2 4.87 2 4.47 B 3.86
3 4.87 3 0 E 3.56
4 0 4 4.48 Q2 2n5088
5 4.45 5 92mV C 9.24
6 4.85 6 8.89 B 3.05
7 4.85 7 3.5 E 2.53
8 9.24 8 8.47 Q3 2n5088
IC2 TL062 IC5 TL022 C 9.24
1 4.87 1 ~4.63 B 3.84
2 4.87 2 4.62 E 3.59
3 4.87 3 4.61 Q4 2n5088
4 0 4 0 C 3.51
5 4.87 5 varies B 64mV
6 4.87 6 4.61 E 0
7 4.89 7 ~4.65
8 9.24 8 9.08
IC3 3207
1 0
2 4.48
3 4.81
4 8.47
5 9.07
6 4.47
7 5.29
8 5.29
If you are using the
3007/3101 combo instead
of the 3207/3102 some
voltages for IC3 and IC4 will
be di󰀨erent than those listed
in the chart.
• 3007 pins 1 and 5
voltage readings will be
swapped from the 3207
(b/c pin1 on the 3007
is power and pin5 is
ground).
• pin4 of the 3007 and
pin8 of the 3101 will
read about 0.6v.
• pin7 and 8 of the 3007
may be di󰀨erent.

Build Pic Kingmaker
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I took this pic before nal calibration, so that’s why IC1 is not inserted.

Schematic Kingmaker
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