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Adam's Amplifiers: Four Different Overdrive Pedals
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Four Different Overdrive Pedals
Wednesday March 1, 2006 by adam

This pedal update has an interesting twist – the site Runoff Groove has taken several classic tube circuits and adapted them as pedals using MOSFETs. MOSFETs actually behave in a very triode-like manner.

They’ve taken the Matchless DC/30 design and adapted it as the Matchbox, the Dumble Overdrive circuit as the Umble, and the Boogie Mark I as the Uno. In fact, there are even more – check out their articles page.

These look pretty interesting, and I’ll probably build one, or even all three, of them at some point.

Ted Woods also tipped me off to another tube pedal, the Stephenson Amps Stage Hog, which uses a 12AX7 and a 12AU7 and can be operated as a tube distortion pedal or a practice amp.

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  1. I have had the great privelege of playing through an “Umble”. Yes the $10,000 original kind. The tone that comes out of this amp is unlike anything I’ve heard from any other amp I’ve used! The pro player that owns and tours with it said he “had to have” one. It took 8 years to find, but was worth the wait and the price. Their built like tanks and are quite heavy as a result. There is no “hype” about the tone. The lows are focused and full, not boomy, very “pianoesque”. The mids sing with clarity and are EXTREMELY musical. The highs are glassy and rounded. Overall,this amp is the finest sounding amp I’ve heard. If I had the money, I’d buy one without hesitation.

    Bill Toneman    Mar 30, 01:16 PM    #

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