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Crazy Tube Circuits Unveils Unobtanium Raw

Crazy Tube Circuits Unveils Unobtanium Raw

Featuring rare NOS Mullard/Valvo OC45 germanium transistors for organic compression, increased gain, and sustain.

"The main composition has stayed the same as the standard version of Unobtanium that we released back in December 2022. A recreation of the Klon style overdrive true to the last detail finds its place at the right section of the pedal while the left section features two Dumble style amplifier voicings, the most unobtainable tube amplifiers in the world."

For the RAW edition, Crazy Tube Circuits added a couple of ingredients to the clipping section of the K side: a set of hand-selected New Old StockMullard/Valvo labeled OC45 germanium transistors from the 60s. They tested many germanium transistor types and found that the OC45 transistors added a supernatural feel with organic compression for increased gain and sustain. The standard sounds are still there in the stock setting where you listen to germanium diodes clipping like in the original unit.

As with the standard version, Unobtanium Raw features a passive effects loop to give you the option to connect your beloved pedals between your booster/overdrive and amp in a box or use the two sections as separate and independent effects when using an external bypass switcher/looper. Note that all pedals inserted in the passive effects loop are still in the signal chain when any or both sections of are in bypass mode.

The RAW version will be built in limited quantities and stay out there for as long as we have stock of the NOS Mullard/Valvo OC45 germanium transistor. It is now available through our online direct store and dealer network.

Street price: 339 Euro, 349 USD

For more information, please visit

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