Mad Bean Pedals HoneyDripper User manual

HoneyDripper
FX Type: Filter
Based on the Colorsound® Dipthonizer™
© madbeanpedals
2015 Version
2.35" W x 3.35" H
Terms of Use: You are free to use purchased HoneyDripper circuit boards for both DIY and small commercial operations. You
may not offer HoneyDripper boards for resale or as part of a “kit” in a commercial fashion. Peer to peer re-sale is, of course, okay

2
R1 100k R23 100k C1 10n D1 - D11 1n914
R2 2M7 R24 1M C2 2n2 D12 1N5817
R3 27k R25 2M2 C3 100n D13 15v Zener
R4 100k R26 1M C4 4n7 D14, D15 1N5817
R5 180k R27 220k C5 4n7 D16, D17 5.1v Zener
R6 4k7 R28 1M C6 1n5
R7 1k R29 470k C7 1n5 IC1 4558
R8 3k9 R30 1M C8 100n IC2 LM324
R9 100k R31 10k C9 2u2 IC3 LM324
R10 1k R32 100k C10 2u2 IC4 LM13700
R11 3k9 R33 100k C11 2u2 IC5 LT1054
R12 33k R34 22k C12 470n
R13 47k R35 27k C13 220n SW1 2P4T
R14 2M7 R36 47k C14 100n
R15 10k R37 100k C15 47n SWEEP 10kB
R16 2M7 R38 220k C16 100n FUZZ 10kB
R17 4k7 R39 220k C17 100uF
R18 2k R40 3k3 C18 10uF
R19 1k R41 3k3 C19 10uF
R20 220k R42 3k9 C20 10uF
R21 1k R43 1k C21 100n
R22 100k C22 10uF
IC
Switch
Pots
B.O.M.
Resistors Resistors Caps Diodes
The rotary switch is included with the purchase of the HoneyDripper 2015 PCB. The switch has a knurled shaft instead of a smooth one like the Alpha in the
previous version. Just be sure that you order/use a knob made for knurled shafts or you're going to have a bad time.
2017 Update: The rotary switch is no longer included with this PCB. However, it is now available from Smallbear: http://smallbear-
electronics.mybigcommerce.com/rotary-switch-miniature-2p4t/

3
V
alue QTY Type Rating
1k 5 Metal / Carbon Film 1/4W
2k 1 Metal / Carbon Film 1/4W
3k3 2 Metal / Carbon Film 1/4W
3k9 3 Metal / Carbon Film 1/4W
4k7 2 Metal / Carbon Film 1/4W
10k 2 Metal / Carbon Film 1/4W
22k 1 Metal / Carbon Film 1/4W
27k 2 Metal / Carbon Film 1/4W
33k 1 Metal / Carbon Film 1/4W
47k 2 Metal / Carbon Film 1/4W
100k 8 Metal / Carbon Film 1/4W
180k 1 Metal / Carbon Film 1/4W
220k 4 Metal / Carbon Film 1/4W
470k 1 Metal / Carbon Film 1/4W
1M 4 Metal / Carbon Film 1/4W
2M2 1 Metal / Carbon Film 1/4W
2M7 3 Metal / Carbon Film 1/4W
1n5 2 Film 25v min.
2n2 1 Film 25v min.
4n7 2 Film 25v min.
10n 1 Film 25v min.
47n 1 Film 25v min.
100n 5 Film 25v min.
220n 1 Film 25v min.
470n 1 Film 25v min.
2u2 3 Electrolytic 25v min.
10uF 4 Electrolytic 25v min.
100uF 1 Electrolytic 25v min.
1n914 11
1N5817 3
15v Zene
r
1 1/2 or 1W
5.1v Zene
r
2 1/2 or 1W
4558 1
LM324 2
LM13700 1
LT1054 1
2P4T 1 included with PCB
10kB 2 PCB Right Angle 16mm
Shopping List

4

5
125B Drill Guide
5.52" W x 7.65" H
Tip: When mounting the knob on the rotary switch, turn it to the "bow" setting. This will allow you to mount the knob
perpendicular to the enclosure so it will line up with the hash marks shown above.

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Wiring Guide
Pots, Switch and indicator LED should be soldered directly to the PCB.

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The Honey Dripper is based on the Colorsound Dipthonizer™, a very unusual and short lived auto-
wah type effect. The Dipthonizer™ was only made for a couple of years in the late 70’s and thus quite
rare. Current eBay offerings price these somewhere close to $1000. The effect itself is constructed
from two parallel multiple feedback filters whose intensity is controlled by an envelope filter.
Additionally, there is a four way rotary switch which changes the overall “vowel” driver produced by
the envelope.
2015 version
 The HoneyDripper has been re-designed to utilize the LM137000 instead of the stock CA3080
(which are becoming increasingly rare and ever-more expensive).
 The Alpha rotary switch has been replaced with a much smaller 2P4T (this was necessary to
make the new layout fit in a 125B). The rotary switch is included with the PCB.
 The Fuzz pot operation has been switched to clean (full-off) to max fuzz (full-on). This was
done as matter of personal preference - it has no impact on the effect other than to make the
control more logical.
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Controls
Fuzz – Controls the amount of fuzz blended in with the clean input signal. Note that the "fuzz" here is
not really all that fuzzy. It's more of a gentle overdrive.
Sweep – Sets the intensity of the envelope that drives the two filters. The best settings tend to be 1/2
to full up.
SW1 – This is a 2-pole, 4-terminal rotary switch which changes the vowel type (labeled Yeh, Bow,
Wah, Aae).
________________________________________________________________________________
Mod
 Change C2 from 2n2 to a smaller value for a brighter sound. My preference here is a 560pF or
680pF. I would not go lower than that (too much noise).
There were a couple other mods listed in the previous version, but overall I think the stock version
(plus the mod listed above) is the one to build. I've tested out a lot of possible mods and I keep
coming back to mostly stock.
________________________________________________________________________________
Note: R26 label on the silkscreen was moved off-center. This pic shows the exact location for R26.
________________________________________________________________________________

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IC1 4558 IC2 LM324 IC3 LM324 IC4 LM13700 IC5 LT1054
1 4.73 1 4.74 1 0.45 1 35mV 1 1.44
2 4.74 2 4.75 2 0.45 2 varies 2 4.93
3 4.71 3 4.74 3 0.45 3 4.73 3 0
4 0 4 17.42 4 17.51 4 4.73 4 28mV
5 4.72 5 4.69 5 4.54 5 4.73 5 0
6 4.74 6 4.74 6 4.74 6 0 6 2.43
7 4.68 7 4.88 7 38mV 7 ignore 7 1.36
8 17.49 8 4.56 8 5.25 8 ignore 8 9.18
9 4.74 9 2.62 9 ignore
10 4.74 10 2.61 10 ignore
11 0 11 0 11 17.52
12 4.74 12 2.61 12 4.73
13 4.74 13 2.63 13 4.73
14 4.74 14 35mV 14 4.73
15 varies
16 0.44
Voltages - 9.42 supply

9
This unit was built stock except for a 680pF cap in C2 and a 1uF film cap instead of the 2u2 electrolytic for C9. R1 was also socketed to try higher values but did
not seem to make much of an impact when tested with both single coils and humbuckers.