Crazy Tube Circuits

Notes: All analogue sonic recreations of 5 legendary fuzz circuits plus a future classic combination.

For this limited run of our Constellation Fuzz we carefully hand-select NOS germanium CV7003 transistors (military spec OC44) made in the UK by Texas Instruments in 1968.

Each pedal is built by hand, one at a time in our workshop in Athens, Greece and comes in a beautiful laser-etched aluminum enclosure and natural stained wooden box.

Voicings:

FF: a tribute to the most copied fuzz circuit.
VTB: inspired by the Italian made fuzz circuit
3/2: voiced after the mythical circuit knows as mk1.5
2: the soaring gain 3-transistor fuzz circuit
RM: a treble booster as close as it gets to the real thing
RMFF: a tailor made RM into a FF

Note: Constellation CV7003 requires a centre negative power supply for proper operation ( - centre, + ring ). It is a positive ground circuit. Do not use a daisy chain power supply with negative ground effects. Please make sure to use an isolated power supply output!


Note: Constellation CV7003 requires a center negative power supply for proper operation ( - center, + ring ). It is a positive ground circuit. Do not use a daisy chain power supply with negative ground effects. Please make sure to use an isolated power supply output !

Notes: Crossfire is inspired by one of the most iconic pedal - amp combinations in guitar history.

The left side is voiced after the blackface amps that defined clean electric guitar sounds. All analogue and following the circuit path to the exact detail Crazy Tube managed to include all the essential sonic ingredients. From the big bold lows, sparkly highs and slightly scooped mids, to the powerful sound of a solid state rectified 4x 6L6GC power amp or the sponginess of a tube rectified 2x 6L6GC power amp selectable through the headroom switch.

Match that to the green mid-hump overdrive we've all grown to love, upon its inception in the late 70s, found on the right side. Crazy Tube chose to accurately recreate the circuit of this classic overdrive but with the addition of some of the most common modifications the pedal has seen throughout the years of its mass production or boutique variations. A clipping toggle switch selects between symmetrical (original) or asymmetrical clipping for enhanced touch-sensitive drive characteristics while a gain toggle adds more gain and alters the low frequency response making it reminiscent of placing two of the same overdrive pedals in series. An internal switch offers additional headroom by providing 18V DC to the overdrive circuit.

Warning: This unit was designed for 9V DC input only. Do not use a higher voltage power supply.

A passive effects loop gives you the option to connect your beloved pedals in the signal chain building your ideal rig or use the two sides independently (send is the output of the overdrive side, return is the input of the amp side). When both sides are in bypass mode the loop is true bypass as well, so your signal won't be affected at all.

It's a match made in heaven! Turn your rig into a screaming sparkly blackface machine!

Power supply: 9V DC center negative, regulated / stabilized.
Max current consumption: 83mA

Notes: Cyclone is an all analogue phaser effect voiced after classic phaser designs of the past. Crazy Tube Circuits set out to emulate the phasing notches - frequency shifts and the behaviour of the original unit that each of the voicings is modelled after. With the addition of extra controls, not part of the classic designs, a whole range of classic and non-classic uses become available making it an ideal texture machine with unparalleled harmonic richness.

Besides guitar and bass, it can be used on any instrument and works particularly well with classic keyboard sounds.

Place before or after your favourite drive to create different sound effect and texture.

Voicings:

(current version: revB - units with serial number #210 or higher)

45: Voiced after a classic 2 stage phaser born in mid 70s

Add spacy ambience to your sound with this subtle and musical effect somewhere between

a warm, organic phaser and a rotary speaker effect.

The higher depth settings on this voicing are strongly recommended.

90: Voiced after a classic 4 stage phaser from the 70s.

From subtle warm, shimmering modulation to all-out high velocity swoosh.

The original units and their alterations/derivatives had little or no feedback signal at all. With the addition of the feedback knob you can emulate all these different versions and then some.

ST: Voiced after the 1st implementation of another classic 4 stage phaser design of the 70s.

Stronger and dirtier mid frequency notches for a whirling, pulsating and whooshing phaser effect. The original unit had a switch to select between no feedback and a fixed amount of feedback. With the addition of the feedback knob you can emulate all the in-between settings and more.

LT: Mesmerising phaser/vibrato. Voiced after a highly sought-after boutique phaser pedal that came to life during the 90s in the UK with 4 distinct phase shift notches. Takes an ideal space between a phaser and a vibe type of effect (depending on settings). Our take focuses mainly on the classic phaser/vibe, not the extreme sci-fi, sounds that were available from the original unit.

Notes: The updated Golden Ratio now offers three separate analogue compression circuits in one. Choose from FET, OTA and optical modes at the flick of a switch. Fat tones with simple controls.

Supplier's Notes:
Phi has been updated to include 3 separate compressor circuits at a flip of a toggle switch.

An internal smart switching circuit lets you decide which type of compression works best for you featuring a wide range of compression ratio from 1:1 to 20:1

Each all-analog circuit is totally independent and has its own voice with different compression characteristics, range and response of controls to suit every style.

FET compressor: This is a feed-back detector / control compression circuit that relies on a FET transistor for gain reduction. It adds a distinctive color to the signal and can be set for super-fast response, but it may also introduce a bit of musical distortion.

OTA compressor: The majority of guitar compressors use this technology. Our interpretation uses a feed-forward detector circuit thus being able to "squeeze" things harder, ideal for catching fast transients and limiting. It is the most controllable circuit with punchy and direct sound.

OPTO (Optical) compressor: A hand selected photocell combined with a feed-back detector circuit offer smooth attack and release characteristics resulting in very musical and organic compression even on extreme settings. It can also be set very neutral so that you won't be able to tell when it's on but you sure going to miss it when it's gone.

Phi will fatten up your tone even with no compression added. With the parallel compression technique of blending the compressed signal with the original - uncompressed signal, you will experience clarity and precision only found in studio recordings.

An internal switch selects between 9 or 18V DC of operation from a standard 9V DC power supply via an internal voltage multiplier. Use the 18V setting for increased headroom and enhanced compression characteristics.

Features superb low-noise floor performance and full frequency response making it ideal for guitar, bass and virtually every instrument either on studio or stage.

Dimensions: 125 (l) x 72 (w) x 55 (h) mm
Weight: 350 g

Notes: Memphis Vibrato was designed as the "small brother" of Crazy Tube Circuits' Killer V- this was born out of high demand for a true pitch shifting amp-like vibrato pedal, without the drive section.

It features all analogue LFO and true-to-the-original-amp 2-stage pitch shifting circuit powered from an internal voltage multiplier for high headroom and improved dynamic response. A clean period correct preamp with up to 20db boost takes you back to the late 50s / early 60s.

With the intensity and speed knobs you can add a subtle shimmer , or a pronounced 3D acoustic image and musical feel with ear- pleasing vibrato effect for instant classic Lonnie Mack / Robert Ward sounds!

ALL WET - DRY / WET toggle switch selects between 100% modulated signal or places the dry unmodulated signal in parallel with the modulated signal. The latter setup was found in some of the original amps through "stereo" inputs and yields whirling phaser / vibe sounds.

Notes: ***B-STOCK: Product has light surface marks/scratches, but otherwise in perfect working condition***


Memphis Vibrato was designed as the "small brother" of Crazy Tube Circuits' Killer V- this was born out of high demand for a true pitch shifting amp-like vibrato pedal, without the drive section.

It features all analogue LFO and true-to-the-original-amp 2-stage pitch shifting circuit powered from an internal voltage multiplier for high headroom and improved dynamic response. A clean period correct preamp with up to 20db boost takes you back to the late 50s / early 60s.

With the intensity and speed knobs you can add a subtle shimmer , or a pronounced 3D acoustic image and musical feel with ear- pleasing vibrato effect for instant classic Lonnie Mack / Robert Ward sounds!

ALL WET - DRY / WET toggle switch selects between 100% modulated signal or places the dry unmodulated signal in parallel with the modulated signal. The latter setup was found in some of the original amps through "stereo" inputs and yields whirling phaser / vibe sounds.

Notes: Motherload pays homage to the classic fuzz/distortion pedals that set the benchmark of saturated guitar sound. At the heart of this pedal you will find two distinct all analogue circuits inspired by the Holy Grail of Muff and Rat designs.

R circuit goes from a touch of overdrive all the way up to full out saturated tones. The filter knob is there to ensure that you will smooth out high frequencies or cut through the mix when needed.

M side is the classic fuzz distortion beast you would expect but with great string separation and rich in harmonics for almost infinite sustain. The tone knob is the classic muff style knob while the voice knob helps you cycle through the wide spectrum of muff design variations.

Each circuit is independent from the other with its own EQ control(s) until...you hit the LINK EQ button. This is where all the magic happens! Now all the EQ controls are active in both circuits and whole new sonic palette is revealed.

Notes: Meet Sidekick - The perfect companion

Sidekick combines the most common time based effects and creative tools in a compact design (14,5 x 12,3 x 7 cm), ideal for any fly-rig or small board setup. Starting with a fully analogue, lush BBD chorus for 3-dimensional sounds that can be also switched for less modulated delay time and extra feedback creating a flanger like effect. A sweet but sparky echo / delay with a maximum delay time of 700ms adds organic repeats to your tone while 3 algorithms of spacious reverb (exciter - taken from Splash mk3, plate and shimmer) create the perfect ambience.

You can use any of the effects on their own or combine them to create the soundscapes of your dreams.

A switchable studio quality buffer / preamp taken from the Crazy Tube Circuits Magnifier pedal ensures that all your precious tone will be kept unaltered through travels of long cables or enhance/boost your signal if needed (microphones, low output / piezo / acoustic instruments...)

With the DI and Headphones outputs with switchable amp / speaker simulation you can always have your personal in-ear monitor with you or silent practice late at night and at the same time connect to your audio interface / mixing console.

Notes: Space Charged just got super charged!

Preserving that warm tube tone of V1, Crazy Tube Circuits added gain and volume boost function to spice up your solos. The core real-tube overdrive circuit, courtesy of a 12AY7, is exactly the same but after listening to customer feedback, Crazy Tube Circuits updated the tone control with wider range for brighter sounds available and also included a tight / fat switch to shape lower frequencies.

Powered from an external 9V DC power supply (included) with an internal voltage multiplier to make the tube feel comfortable!

Notes: For this new incarnation of Splash reverb Crazy Tube Circuits took the algorithms of the multi-awarded mk3 version, the plate and shimmer algorithm from Sidekick and added 3 more exciting reverb algorithms, two modulated and one flanged freeze reverb algorithm.

On top of that, this pedal also features the extra flexibility of controlling decay and excite controls on all algorithms via an external expression pedal and / or the on-board footswitch thus creating the ultimate ambient tones.

The dry signal is still 100% all analogue and all the mixing and filtering of the wet signal was done in the analogue domain to get the best of both worlds.

Algorithm I: The "exciter". From a touch of ambience to spacious pad effect, especially on extreme settings. Taken from Splash mk3 with a small twist for extra decay.

Algorithm II: moderate sized reverb. From a spring style reverb up to room and hall. Taken from Splash mk3. Medium decay.

Algorithm III : large reverb. From hall to ambience. Taken from Splash mk3 with a small twist for extra decay.

Algorithm IV: plate style reverb. Taken from Sidekick. Medium decay.

Algorithm V: shimmer : High pitched harmonics ambience. Taken from Sidekick with a small twist for extra decay.

Algorithm VI: modulated I - faster spinning - extra long decay.

Algorithm VII: modulated II - fuller sounding, long to infinite decay.

Algorithm VIII: flanged freeze reverb, short to infinite decay.

Units with serial number #200 or higher feature selectable true bypass or buffer bypass (with trails).

Notes: ***B-STOCK: Box damaged, product in perfect working order***


For this new incarnation of Splash reverb Crazy Tube Circuits took the algorithms of the multi-awarded mk3 version, the plate and shimmer algorithm from Sidekick and added 3 more exciting reverb algorithms, two modulated and one flanged freeze reverb algorithm.

On top of that, this pedal also features the extra flexibility of controlling decay and excite controls on all algorithms via an external expression pedal and / or the on-board footswitch thus creating the ultimate ambient tones.

The dry signal is still 100% all analogue and all the mixing and filtering of the wet signal was done in the analogue domain to get the best of both worlds.

Algorithm I: The "exciter". From a touch of ambience to spacious pad effect, especially on extreme settings. Taken from Splash mk3 with a small twist for extra decay.

Algorithm II: moderate sized reverb. From a spring style reverb up to room and hall. Taken from Splash mk3. Medium decay.

Algorithm III : large reverb. From hall to ambience. Taken from Splash mk3 with a small twist for extra decay.

Algorithm IV: plate style reverb. Taken from Sidekick. Medium decay.

Algorithm V: shimmer : High pitched harmonics ambience. Taken from Sidekick with a small twist for extra decay.

Algorithm VI: modulated I - faster spinning - extra long decay.

Algorithm VII: modulated II - fuller sounding, long to infinite decay.

Algorithm VIII: flanged freeze reverb, short to infinite decay.

Units with serial number #200 or higher feature selectable true bypass or buffer bypass (with trails).

Notes: Stardust V3 was designed to capture the sound and response of 3 distinct maxed out and ready to sing blackface amplifier models. An all-analogue signal path with discrete gain stages featuring MOSFET transistors, provides juicy overdrive tones with great note separation that clean up to that sparkly sound that we all love and heard in recordings of the past. Set gain and tone and control everything from your guitar. Sparkly clean to crunchy mean are all there.

You can select the blackface amplifier voicing via the onboard toggle switch.
BSM: Voiced after a blackface amp head that was primarily targeted for bass guitar players but got famous for electric guitar classic rock tones.
VLX: Voiced after a chimey 2x10" combo offering the perfect amount of controllable crunch
DLX: Voiced after one of the most popular low wattage 1×12" combo amps that have found their way in countless recording studios and clubs around the world.

Stardust V3 comes with top mounted jacks and soft click true bypass via a high-quality relay. The pedal has loads of output volume and enhanced headroom provided by 18V DC (boosted internally from external 9V DC power supply) so that it can also be used as a preamp / booster.

Notes: ***B-STOCK: Slight surface marks ***


Stardust V3 was designed to capture the sound and response of 3 distinct maxed out and ready to sing blackface amplifier models. An all-analogue signal path with discrete gain stages featuring MOSFET transistors, provides juicy overdrive tones with great note separation that clean up to that sparkly sound that we all love and heard in recordings of the past. Set gain and tone and control everything from your guitar. Sparkly clean to crunchy mean are all there.

You can select the blackface amplifier voicing via the onboard toggle switch.
BSM: Voiced after a blackface amp head that was primarily targeted for bass guitar players but got famous for electric guitar classic rock tones.
VLX: Voiced after a chimey 2x10" combo offering the perfect amount of controllable crunch
DLX: Voiced after one of the most popular low wattage 1×12" combo amps that have found their way in countless recording studios and clubs around the world.

Stardust V3 comes with top mounted jacks and soft click true bypass via a high-quality relay. The pedal has loads of output volume and enhanced headroom provided by 18V DC (boosted internally from external 9V DC power supply) so that it can also be used as a preamp / booster.

Notes: Super Conductor features 4 distinct boost circuits in a small pedal format. Based on one-knob-wonders of the present and past, these tone accelerators can drive your rig into sonic bliss.

Each all-analogue circuit features different input/output impedance, internal voltage and behaves differently on the volume / output knob, producing its own sonic signature, so that you can find the one that suits your rig and playing style.

rm: our own silicon interpretation of the 60s classic germanium treble booster. Using a unique setup of paralleling 2 low gain silicon transistors we've managed to produce a sound that will convince even a NOS OC44 enthusiast. Use it to push an already overdriven amp or add presence and bite to a dark sounding setup.

ep: JFET preamp - gain stage based on the preamp circuit of a tape echo unit of the early 70s run on true to the original specs 24V DC power supply via an internal voltage boost. This tone enhancer is known for its magical coloration and the added focus and detail it gives to your sound.

ma: op-amp boost based on a clean and "transparent" volume booster of the late 70s / early 80s. This circuit is a "reference" to louder solos. Use it to run long signal chains with its low output impedance or drive your amp harder into natural saturation.

mf: based on a late 90s ultra-transparent, high input impedance MOSFET boost. This interpretation doesn't crackle but still retains the massive clean boost with pristine highs sonic identity of the circuit it was modelled after.

Crazy Tube Circuits have added tone shaping modifications, individual to each circuit, that you can switch at will via the white and black button modifiers.

White button modifier operates only on rm and ep circuits, black button modifier operates only on ma and mf circuits.

Warning: This unit was designed for 9V DC input only. Do not use higher voltage power supply.

Notes: Inspired by the first digital delay rack units introduced at the beginning of the "digital audio revolution" in the mid-late 70's. These units had lower bit resolution and bandwidth compared to today's digital delay standards.

TI:ME is not your typical sterile and ultra clean digital delay. With separate analogue and digital paths to get best of both worlds, this retro inspired echo effect will warm up your tone. An all analogue signal path featuring a high quality opamp is used for the best reproduction of your dry signal. Two digital recording devices, along with carefully tuned filtering, placed in parallel with the dry path give you the most ambient delay unit you have ever heard. Think of a Model 113 rack unit; the repeats are really musical, reminiscent of worn tape echoes.

Each TI:ME unit is hand lacquered in copper colour and one of a kind!

Notes: Seeking to recreate the sounds of the Klon Centaur overdrive pedal and Dumble guitar amps, the Crazy Tube Unobtanium combines the holy grails of germanium diodes and all-analogue amp-in-a-box tone. Incredible value.

Supplier's Notes:
Introducing the Unobtanium, a rare sonic element born out of legendary tones.

A mythical overdrive meets the tone and feel of two iconic amplifiers. Crazy Tube Circuits have accurately recreated the circuit of the high headroom overdrive with the magic blend of clean and overdriven tones and added extra features for versatility. The amp-in-a-box section uses an all-analogue circuit to capture the essence of two legendary D-style tube amplifiers. From tube-like compressed fat clean to sweet singing overdrive with blooming harmonic overtones. Combine both sides for near infinite smooth sustain and enter sonic bliss while a passive series effects loop gives you the option to connect your beloved pedals between the overdrive and amp section, building your ideal rig

Right side: K-style pedal overdrive circuit including the fabled germanium diodes
Controls: gain, treble (tone), volume, bypass mode and clipping / compression
Wide gain range control: from transparent boost to high headroom overdrive
Treble control is an active circuit to boost or cut treble
Volume knob sets overall output. Huge amount of dB boost available
Toggle switch to select between the original buffer bypass to add clarity and run long cables or
true bypass
Toggle switch to select between stock clipping / compression or enhanced gain and
headroom/output

Left side: D-style Amp in a box overdrive
Controls: gain, emphasis, tone, volume, amplifier voicing toggle
Gain control: from clean boost to sweet singing overdrive
Emphasis control is a pre-drive EQ to control presence and bottom end response
Tone knob controls the amount of post overdrive high end frequencies
Volume knob sets overall output. Match bypassed volume or use as a clean boost or preamp
Toggle switch selects between 2 distinct D-style overdrive circuits
SSS: clean and transparent overdrive with natural organic compression
ODS: higher gain overdrive with enhanced mid frequencies and harmonic overtones
External footswitch input to select amplifier voicing (bypasses on board toggle switch)
Internal trimmers adjust EQ and volume boost of D-style overdrive voicings

Features:

Dual overdrive with independent operation
Two legendary sonic elements combined in one device
Passive series effects loop to connect other pedals between the two sections or use them separately
Runs internally at 18V DC for higher headroom and tube-like performance
Exceptional pick attack response - almost infinite smooth sustain when both sides are combined
Top mounted jacks
Click-less True Bypass design via high quality relay
Power Supply: Use only 9V DC center negative power supply (not included)
Current consumption 83mA
Pebble grey die-cast enclosure with black ink in old school type print
Made in Greece

Notes: ***B-STOCK: Box opened, product in perfect working order***


Seeking to recreate the sounds of the Klon Centaur overdrive pedal and Dumble guitar amps, the Crazy Tube Unobtanium combines the holy grails of germanium diodes and all-analogue amp-in-a-box tone. Incredible value.

Supplier's Notes:
Introducing the Unobtanium, a rare sonic element born out of legendary tones.

A mythical overdrive meets the tone and feel of two iconic amplifiers. Crazy Tube Circuits have accurately recreated the circuit of the high headroom overdrive with the magic blend of clean and overdriven tones and added extra features for versatility. The amp-in-a-box section uses an all-analogue circuit to capture the essence of two legendary D-style tube amplifiers. From tube-like compressed fat clean to sweet singing overdrive with blooming harmonic overtones. Combine both sides for near infinite smooth sustain and enter sonic bliss while a passive series effects loop gives you the option to connect your beloved pedals between the overdrive and amp section, building your ideal rig

Right side: K-style pedal overdrive circuit including the fabled germanium diodes
Controls: gain, treble (tone), volume, bypass mode and clipping / compression
Wide gain range control: from transparent boost to high headroom overdrive
Treble control is an active circuit to boost or cut treble
Volume knob sets overall output. Huge amount of dB boost available
Toggle switch to select between the original buffer bypass to add clarity and run long cables or
true bypass
Toggle switch to select between stock clipping / compression or enhanced gain and
headroom/output

Left side: D-style Amp in a box overdrive
Controls: gain, emphasis, tone, volume, amplifier voicing toggle
Gain control: from clean boost to sweet singing overdrive
Emphasis control is a pre-drive EQ to control presence and bottom end response
Tone knob controls the amount of post overdrive high end frequencies
Volume knob sets overall output. Match bypassed volume or use as a clean boost or preamp
Toggle switch selects between 2 distinct D-style overdrive circuits
SSS: clean and transparent overdrive with natural organic compression
ODS: higher gain overdrive with enhanced mid frequencies and harmonic overtones
External footswitch input to select amplifier voicing (bypasses on board toggle switch)
Internal trimmers adjust EQ and volume boost of D-style overdrive voicings

Features:

Dual overdrive with independent operation
Two legendary sonic elements combined in one device
Passive series effects loop to connect other pedals between the two sections or use them separately
Runs internally at 18V DC for higher headroom and tube-like performance
Exceptional pick attack response - almost infinite smooth sustain when both sides are combined
Top mounted jacks
Click-less True Bypass design via high quality relay
Power Supply: Use only 9V DC center negative power supply (not included)
Current consumption 83mA
Pebble grey die-cast enclosure with black ink in old school type print
Made in Greece

Notes: Why do you have to struggle for a digital emulation of two classic effects when you can have the real thing?

The White Whale features a real 3-spring reverb tank along with controls for dwell, mix, and tone to provide the lushest analogue spring reverb you'll ever find in a pedal of its size (17 x 12,5 x 7,5 cm) to experience the ultimate ride of a wave. Combined with its two selectable modes of an all analogue tremolo, opto (black) and bias shifting style (brown), the White Whale is all you'll ever need to deliver old-school surf tones.

Each effect has its own true bypass function (via the onboard footswitches or remote switching units) so you can have simultaneous or independent operation. With 2 separate expression pedal inputs you can control parameters like reverb mix and tremolo speed. Classic sound with modern flexibility!