madbeanpedals Kezuroukai24 Manual

Kezuroukai24 Kezuroukai24
F
MODULATION
X Type:
Build Level: Intermediate
Based On: Blackstone Effectors® Whetstone™
The 2024 version of the Kezuroukai has no circuit changes and brand a new layout. The design has been
converted from 2-layer to 4-layer and the control layout has been changed to resemble the commercial
version.
Kezurou-kai is a term that has become synonymous with the practice (and competition) of Japanese wood
planing. It involves using fine hand planes to shave off ever thinner wood spirals. The thickness of the
planed wood fibers is a testament to the artistry of the woodworker and his or her tool . Some competitors
are able to achieve results comparable to the width of a single human hair. It reveals the devotion it takes to
elevate the practice of a skill to perfection. What does this have to do with Phasers? Why, nothing at all! But,
if you've been doing DIY for a long while you might have an understanding (or at least an appreciation) for
the time and devotion it takes to master a skill and evolve into a true craftsperson.
The Kezuroukai project is based on the Blackstone Effectors Whetstone™ phaser. This is a highly tweakable
phase effect that has roots in the OTA Ross and Small Stone. If you love phaser (and I know someone who
does) you will love the Kezuroukai. It's got something for all phlovers, one might say.
• RATE (pot): Sets the LFO rate from slow to fast.
• DEPTH (pot): The overall depth or intensity of the phaser or vibrato.
• FEEDBACK (pot): The resonance of the phase stages. At the highest settings you may hear the overall
output volume dip. This is normal. At that point the feedback is actually loading down the input signal.
Around 2/3rds up seems to be where the thickest "whoosh" resides.
• VOL (pot): Output level.
• SWEEP (switch): Sets the overall range from center of the LFO sweep. The two settings are Shallow
and Wide. This switch has some interaction with the Rate and Range controls.
• STAGES (switch): Toggles between 2 and 4 phase stages.
• SYM (switch): This switches the two middle all-pass stages to asymmetrical. What this means is rather
than having 4 stages of identical all-pass stages, two of them will have slightly different filtering creating
an asymmetry in the total phase sweep. This switch setting can also alter the behavior of the Filter
switch. This switch may pop a bit when you first engage it.
• FILTER (switch): This switch converts the third and fourth all-pass phase stages to low-pass by sending
the filter caps to virtual ground. It interacts with the Stages switch, as well. In 4-stage mode you will have
two all-pass stages followed by two low-pass stages. In 2-stage mode you will have just the two low pass
stages.
• VIB (switch): Removes the input signal from the phaser to produce a vibrato effect.
• RANGE (rotary): This rotary sets the total range of the LFO. It has four settings: Normal (a general
phaser LFO range), Pads (an extremely slow LFO sweep), Ring (a super fast LFO sweep that can create
ring mod type effects) and Fixed. The Fixed setting disengages the LFO sweep. Here you can use the
Rate as a manual control to create different filter effects.
• T1 (trimmer): This trimpot sets the gain of the output stage before the volume control. It is completely
user-preference. You can set it for clean output or slight break-up by turning the trimmer CW.
Terms of Use: You are free to use purchased Kezuroukai24 circuit boards for both DIY and small commercial operations. You may not offer Kezuroukai24 PCBs for
resale or as part of a "kit" in a commercial fashion. Peer to peer re-sale is fine, though.
Technical assistance for is available via the
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 benefit.
All copyrights and registered trademarks are property of their original owners. Any mention of trademarked or intellectual properties in this documents is purely for
comparative purposes.
Overview
Controls
madbeanpedals forum. Please go there rather than emailing me for personal assistance. This is because (1) I'm not always
Last Updated:
August 18, 2024 10:39 AM
© 2024 madbeanpedals