"Lewd, crude, gnarly, and nasty fuzz that shouldn't be allowed out of the 60's"



The InAGaddaDaFuzza fuzz rack effect module compares to the Mosrite FUZZrite and recent Catalinbread FUZZRite.  Big, nasty fuzz tone used for an epic California jam by Iron Butterfly.



Our InAGaddaDaFuzza module compares to the Mosrite Fuzzrite.  There were a number of new fuzz pedals hitting the market in the 60's.  The Mosrite FUZZrite was one of them.  It's a little difficult to say with certainty who used what fuzz back then, but it seems fairly certain it was the fuzz used for Iron Butterfly's multi-platinum In-A-Gadda-Da-Vida.  It probably wasn't used by the Ventures, although it probably does give you the sound they were looking for at the time.  It probably was not used for Spirit In The Sky, but it gives you a similar fuzz character - a little nasty and gnarly, a bit low-fi, maybe good for garage punk.  But with some fiddling about, you may find that fuzz sound heard on a number of 60's bands, particularly those in California at the time.  Recently, Catalinbread worked with the Moseley family of the original creators to build a reissue of the FUZZRite.  It compares well to the original.  As you turn your guitar volume down, the bass is reduced and the tone becomes even nastier, metallic and clanging, about as subtle as showing a power drill in your ear, and should cut through about anything.  Be nice and keep your guitar volume up!

The earliest versions of the FUZZrite used germanium transistors, while later versions were silicon.  You get a similar fuzz tone from both germanium and silicon transistors, or even a mixture of the two.  However, the germanium versions seem to sizzle and gate out, maybe just what you're looking for, maybe not.  In our opinion, silicon transistors are the way to go.  We have the same uncommon model as used in the Catalinbread remake, or we can use something else if you have a preference.  Either way, it's a rude, in-yo-face, stick-it-to-the-man fuzz, somewhat similar to the Gibson FZ-1 used by Keith for Satisfaction a few years before the Butterfly took wing.

We offer germanium and half-germanium/half silicon, and silicon versions of the circuit, but feel that the silicon version is much superior for sustain without gating and cutting out.  By default, you'll get silicon transistors unless you select the Ge Transistors or Hybrid Transistors option.

We've upgraded the power filtering and added a resistor at the input to prevent popping.  If you don't want those for some reason, just let us know and we'll leave them off.  We also use carbon comp resistors by default, but can switch them to metal film if you don't want that extra mojo.



  • InAGaddaDaFuzz - compares to Mosrite FUZZrite and Catalinbread FUZZRite






The circuit isn't complex, but there are a few places where some tweaks can be helpful.  By default, we use two SC2316 silicon transistors as does the Catalinbread re-issue, but the transistor model isn't that critical.

  • Gating Trimmer - This fuzz can get spluttery and gated sounded.  That's part of its appeal.  But if you want to open it up a bit, then get this trimmer.  It is only available for the Ge transistor configuration.  We'll set it to "normal", then you can adjust from there if you like.  This is another "set and forget" option, so we didn't put it on the front panel.
  • Volume Cut Trimmer - With the gain, comes volume.  The output can be hot for some guitar/amp combinations.  This trimmer lets you adjust the maximum volume level to tame it down a bit.  You'll still have the normal Volume level on the front panel.  This is a "set and forget" trimmer.  Turn it up too much and your fuzz becomes an overdrive.
  • Tone Control - The Fuzz control affects both the level of Fuzz and the Tone.  Some may like to have a bit more control over the tone, so we added a simple guitar-style Tone control after the Volume control in the circuit.  This control is on the front panel.  It will also trim a smidge off your volume.
  • Ge Transistors - AC125 transistors in both positions unless you want something else.
  • Hybrid Transistors - AC125 for the first transistor and a silicon transistor in the second position.


Front Panel

  • Volume
  • Fuzz
  • (optional) Tone 


Rear Panel

  • Audio In
  • Audio Out
  • On/Off Footswitch
  • On/Off Override
  • DC Power
  • DC Power LED


Module Width

  • 1.5" standard
  • 2" left wing module and 1.5" right wing modules are available 


Power Consumption (aprox)



Base Configurations

Part # Description List Price
MOD-IAGDF InAGaddaDaFuzza module $169



Part # Description List Price
MOPT-IAGDF-VOLTR Volume Cut Trimmer $0
MOPT-IAGDF-TONE Tone Control $19
MOPT-IAGDF-GE Ge Transistors $25 - TBD
MOPT-IAGDF-HYBRID Hybrid Transistors $20 - TBD



Part # Description List Price
MPT-IAGDF-CA Replacement pot, switch, jack, LED cable assembly $19
MPT-IAGDF-KNB Replacement control knob $2
MPT-IAGDF-PB Replacement power board $29
MPT-IAGDF-SB Replacement switching board $29