STATUS ARTIS


BEHOLD! 28 Original solutions to yet-famous audio BFP’s //
discovered and defined privately …

JCM // RESEARCH PERIOD: 2004-2022


** ANALOGUE fx **


BFP #1 … HARDWARE SIMULATOR

Without any doubt this BFP hits the guitarist at a primal level, by pushing the world’s most notable vintage dirt boxes into a new upper territory of gain, dynamics, and versatility … all while maintaining the signature vintage character


super-RM (c)2020 // status: MANUFACTURABLE



super-FF (c)2020 // status: MANUFACTURABLE



super-TB (c)2020 // status: MANUFACTURABLE



BFP #2 … HARDWARE SIMULATOR

Beyond my original jFET based circuit (pictured below) I have found two other methods for hardware-simulating class-A Triode signal transfer … The Arbutus Booster has proven itself great as an on-all-the-time non-linear DC-shifting booster in front of (even low-gain) tube amplifiers


super-TRIODIFIER (c)2012 // status: MANUFACTURABLE



BFP #3 … HARDWARE SIMULATOR

By sandwiching my Triodifier stage between a gainy preamp with EQ and a 60watt power stage I get a realistic set of tube-like power dynamics that holds up to a drum kit …


BFP #4 … HARDWARE SIMULATOR

A 5-way parametrically variable high-headroom/high-drive linearization of the Kushner-Plunkett 2-transistor classic WAH circuit; with full replication of (un-buffered) input network loading. The same transfer function can be produced two ways, in both cases a physical (Fasel) inductor is used.


para-WAH (c)2009 // status: POTENTIALLY MANUFACTURABLE



BFP #5 … HARDWARE SIMULATOR

One of the main goals in this tube-circuit emulator is to get the cross-over frequency right // one way is to match it to an accurate simulation of the original Fender tube circuit (ie., using my 12ax7 SPICE modelling). Features an adapted Univibe LFO circuit as wide-range modulation source, which imparts a very natural analog feel to the design.


6G-HarmonicTremolo with phase/anti-phase/chop modes (c)2013 // status: MANUFACTURABLE



BFP #6 … HARDWARE SIMULATOR

After years of building refined clones of the “Acoustic 360 preamp” I came up with a linearized (modern) equivalent that uses the same 1.5Hy Cinemag inductor and producing a somewhat stronger/sharper EQ response. Same 12-position (single-band) cut/boost EQ function with Treb/Bass shelves but augmented with my optical-based ENVELOPE-LOCK limiter block. Features super low-noise and super low-distortion – with hugely versatile controls – my best sounding modern “360-style” Bass preamp design.


360-MODERN (c)2014 // status: MANUFACTURABLE



BFP #7 … HARDWARE SIMULATOR

My favorite pure-Tremolo circuit, and my third design attempt. Ridiculously simple circuit, and closest to the “Fender Vibro-Champ” response and feel I’ve been able to find. Uses an adapted UNIVIBE LFO for modulation.


UNI-TREM-III (c)2019 // status: MANUFACTURABLE



PHASOR BFP’s

IMAGINE a “BULB/LESS” or “OPTO/LESS” UNIVIBE work-alike … is that even possible ?!

This most important reference circuit points us to an important QUESTION about PHASOR designs in general …


OPTO-VIBE-II (c)2014 // status: LIMITED MANUFACTURABILITY



Presented below: two examples demonstrating improvements of the common types of ALL-PASS filters found in many commercial phasor pedals.


IMPROVED-STD-OTA (c)2014 // status: MANUFACTURABLE



IMPROVED-STD-2STAGER (c)2022 // status: MANUFACTURABLE



AUTOMATIC GAIN CONTROL BFP’s

The final frontier, an obsession …


“ENVELOPE LOCK” FLOATING-GAIN-COMP/Limiter (c)2014 // status: EXPERIMENTAL



LA-2A style minimalist opto-limiter (c)2019 // status: LIMITED MANUFACTURABILITY



LA-2A style “fast” non/opto-limiter (c)2017 // status: MANUFACTURABLE



minimalist OTA style limiter (c)2017 // status: MANUFACTURABLE



zero-ATTACK/zero-RELEASE broadcast-limiter (c)2018 // status: MANUFACTURABLE



NOT-A-LIMITER (c)2022 // status: MANUFACTURABLE



RECTIFIER BFP’s

MAXIMIZING RING … AND PRESENTING A NEW APPROACH


FULL-WAVE RECTIFIER WITH “LOW-BUT-NOT-TOO-LOW” THRESHOLD (c)2019 // status: MANUFACTURABLE



SPLIT-WAVE FREQUENCY DOUBLER (c)2019 // status: MANUFACTURABLE



WAVE-SHAPER BFP’s

Pure Electronic Design Non-Sense …


1-BIT A/D FUZZ of DOOM (c)2019 // status: MANUFACTURABLE



NYQUIST ALISIER (c)2005 // status: MANUFACTURABLE



NEW-TOPOLOGY “GAINY CMOS-INVERTER FUZZ” (c)2017 // status: MANUFACTURABLE



“GLOTTAL WAVE” CONVERTER (c)2018 // status: MANUFACTURABLE



“HARD-MODULATOR” WITH HIGH CARRIER REJECTION (c)2018 // status: MANUFACTURABLE



“SUB-MULTIPLIXER” WITH WIDE-OPEN CHANNELS (c)2018 // status: MANUFACTURABLE



ODD’S and ENDS

Things that don’t fit elsewhere …


ORIGINAL HI-FI COIL DRIVER APPLIED TO “JENSEN JT-DB-E” TX (c)2018 // status: MANUFACTURABLE



ZERO-DEGRADATION OPTICAL STAGE/LIVE MUTE FOR (k&k) PASSIVE PICKUPS (c)2019 // status: MANUFACTURABLE



EPILOGUE // THE “BBD” BFP

During my time I’ve steered clear of anything BBD … that means no attempt at anything original in the Chorus, Flanger or Delay dept. BUT, IN THE END, JUST ANOTHER STONE TO TURN


New approach at BBD signal processing (c)2022 // status: EXPERIMENTAL TBD



TWO PROJECTS STAND-OUT AS PRIME CROWD-FUNDERS :

(I) THE “SUPER-FF” … MY ANSWER TO MANY PLAYER’S vintage Ge fuzz QUESTION

AND

(II) THE “NOT-A-LIMITER” … A DIFFERENT KIND OF COMPRESSOR


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