The Crazy Tube Circuits Constellation OC41 is a Crazy Tube Circuits fuzz pedal. Close alternatives include the Crazy Tube Circuits Constellation Germanium Fuzz/Booster and the JHS Fuzz Mary-K. It pairs well with the Dumble Steel String Singer and the Marshall JTM45 45W Tube Guitar Amp Head.

Crazy Tube Circuits Constellation OC41

Crazy Tube Circuits · pedal

The Crazy Tube Circuits Constellation OC41 is a multi-mode germanium fuzz and treble booster pedal from the Greek boutique builder, using NOS OC41 germanium transistors for a specific vintage tonal character. The OC41 transistor variant delivers the warm, complex tone associated with that specific germanium component, offering six different fuzz and boost modes including treble booster and fuzz combinations. The circuit produces smooth, touch-sensitive bloom with excellent guitar-volume cleanup. Suited for blues, classic rock, and vintage germanium tone enthusiasts who want OC41-specific character.

What stands out

  • “Temperature sensitivity requires a warm-up period for consistent behavior, which is a known characteristic of vintage germanium transistors”

    — from the reviews

  • “The Crazy Tube Circuits Constellation OC41 is a multi-mode germanium fuzz and treble booster pedal from the Greek boutique builder, using NOS OC41 germanium transistors for a specific vintage tonal character”

    — from the listing

  • “The circuit produces smooth, touch-sensitive bloom with excellent guitar-volume cleanup”

    — from the listing

  • “The six-mode design covering treble booster and fuzz combinations extends versatility”

    — from the community notes

  • “The OC41 transistor variant delivers the warm, complex tone associated with that specific germanium component, offering six different fuzz and boost modes including treble booster and fuzz combinations”

    — from the listing

Trade-offs

  • “OC41 germanium transistors deliver an authentic vintage character with complex, warm harmonic content that NPN silicon fuzzes cannot replicate convincingly”

    — from the reviews

  • germanium
  • transistor
  • vintage
  • bloom
  • germanium fuzz
  • tonal character
  • touch
  • treble booster

Genres the Crazy Tube Circuits Constellation OC41 is commonly used in

  • Classic Rock
  • Blues
  • Rock
  • Alternative
    citedInferred from shared tonal signals, not a stated genre tag.
  • Blues Rock
    citedInferred from shared tonal signals, not a stated genre tag.
  • Psychedelic Rock
    citedInferred from shared tonal signals, not a stated genre tag.

Amps that pair well with the Crazy Tube Circuits Constellation OC41

Dumble Steel String Singer

Dumble

25% match

fills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (bright → smooth)

Dumble Steel String Singer leans smooth right where the bright tone needs it

Comes later in the signal chain

Marshall JTM45 45W Tube Guitar Amp Head

amplifier

24% match

fills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (bright → warm)

Marshall JTM45 45W Tube Guitar Amp Head's warm balances out the bright tone

Comes later in the signal chain

Orange Little Bass Thing

Orange

tonal match
$683.03via Reverb

Comes later in the signal chain

Orange Little Bass Thing leans warm right where the bright tone needs it

Hiwatt Park P18LH 'Little 45' Handwired18W

Hiwatt

tonal match
$4300via Reverb

Comes later in the signal chain

Hiwatt Park P18LH 'Little 45' Handwired18W leans warm right where the bright tone needs it

Orange BT1000H Terror Bass 1000-Watt Bass Amp

Orange

tonal match

Comes later in the signal chain

Run Orange BT1000H Terror Bass 1000-Watt Bass Amp after it and the bright edge settles into something more warm

Orange Terror Bass

Orange

tonal match
$754.36via Reverb

Comes later in the signal chain

Orange Terror Bass's warm balances out the bright tone

Gibson GA-50

Gibson

tonal match

Comes later in the signal chain

Run Gibson GA-50 after it and the bright edge settles into something more warm

Victory Amplifiers V50 The Earl

amplifier

tonal match

Comes later in the signal chain

Victory Amplifiers V50 The Earl leans warm right where the bright tone needs it

Pedals that stack with the Crazy Tube Circuits Constellation OC41

Boss CE-2 Chorus

Boss

20% match
$165via Reverb

sits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.

Keep Boss CE-2 Chorus after Crazy Tube Circuits Constellation OC41 in the signal chain, clear of Crazy Tube Circuits Constellation OC41's own gain stage

Comes later in the signal chain

TC Electronic Forcefield Compressor Effetto Compressore A

TC Electronic

20% match
$33.55via Reverb

fills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (bright → smooth)

What TC Electronic Forcefield Compressor Effetto Compressore A brings here leans toward smooth — that's worth building a pairing around

Comes earlier in the signal chain

Catalinbread SFT

Catalinbread

18% match

fills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (bright → warm)

Catalinbread SFT leans warm right where the bright tone needs it

Comes earlier in the signal chain

Caroline Guitar Company Icarus

Caroline Guitar Company

17% match

fills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (bright → warm)

Caroline Guitar Company Icarus leans warm right where the bright tone needs it

Comes earlier in the signal chain

Suhr Discovery

Suhr

14% match
$579.53via Reverb

sits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.

Put Suhr Discovery after Crazy Tube Circuits Constellation OC41 in the signal chain, clear of Crazy Tube Circuits Constellation OC41's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

Comes later in the signal chain

T-Rex Junior Roomate

T Rex

13% match
$108.38via Reverb

sits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.

Keep Crazy Tube Circuits Constellation OC41's germanium voice out front: T-Rex Junior Roomate goes after Crazy Tube Circuits Constellation OC41 in the signal chain so its warm voice doesn't muddy it — goes in the amp's FX loop (or last, into a clean amp)

Comes later in the signal chain

Dunlop Blue Hippo Optical Tremolo

Dunlop

tonal match

Comes later in the signal chain

Where this leans bright, Dunlop Blue Hippo Optical Tremolo answers back warm

SolidGoldFX Commodore Breaker Overdrive

Solidgoldfx

tonal match
$152.15via Reverb

Comes earlier in the signal chain

Run SolidGoldFX Commodore Breaker Overdrive after it and the bright edge settles into something more smooth

Alternativessee all similar tone character →

Crazy Tube Circuits Constellation Germanium Fuzz/Booster

Crazy Tube Circuits

72% similarity
$275via Reverb

Shared character: single coils, sensitivity, circuit

JHS Fuzz Mary-K

JHS Pedals

61% similarity

Shared character: sensitivity, warm, smooth

JHS Pollinator

JHS Pedals

61% similarity

Shared character: tonal character, sensitivity, touch

Dunlop JIM Dunlop JH-M8 Jimi Hendrix Gypsy

Dunlop

60% similarity
$157.65via Reverb

Shared character: sensitivity, touch, thickness

Sola Sound Tone Bender MK1

pedal

59% similarity

Shared character: high gain settings, single coils, fuzz

MXR Mdu JHM8

MXR

59% similarity
$157.65via Reverb

Shared character: sensitivity, touch, thickness

EarthQuaker Devices Hoof Germanium

EarthQuaker Devices

59% similarity
$179via Reverb

Shared character: warm, sensitivity, circuit

Sola Sound Tone Bender MkII

Sola Sound

59% similarity
$244.69via Reverb

Shared character: sensitivity, thickness, fuzz

JAM Pedals Octaurus GRN

Jam Pedals

58% similarity
$259via Reverb

Shared character: warm, smooth, vintage charm

JHS Legends of Fuzz Bender 1973 London Fuzz

JHS Pedals

58% similarity

Shared character: sensitivity, thickness, fuzz

ThorpyFX Six Zero

ThorpyFX

58% similarity
$269via Reverb

Shared character: fuzz, vintage charm, classic rock

Benson Amps Germanium Fuzz

Benson Amps

57% similarity
$249via Reverb

Shared character: sensitivity, circuit, warm

See all alternatives to the Crazy Tube Circuits Constellation OC41 (cheaper + boutique) →

Questions people ask

What are good alternatives to the Crazy Tube Circuits Constellation OC41?+

The closest matches in character are the Crazy Tube Circuits Constellation Germanium Fuzz/Booster, the JHS Fuzz Mary-K, the JHS Pollinator.

What pairs well with the Crazy Tube Circuits Constellation OC41?+

Strong matches from rig and tone-complementarity evidence: Dumble Steel String Singer, Marshall JTM45 45W Tube Guitar Amp Head, Orange Little Bass Thing — Dumble Steel String Singer leans smooth right where the bright tone needs it.

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