[Marcel]’s low-voltage tube amp design might spark your interest. The design operates with a B+ (plate) voltage of only 40v, making it less intimidating and dangerous than many other amps that ...

This amp design uses a plate voltage of 12, although the 12AU7 can handle up to about 330. Since the 12AU7 is of the Twin Triode variety, one tube can be used to amplify both a left and ...

Self-taught boutique builder Charles Henry puts musicality first with his designs, winning fans including Grace Bowers and ...

But the tube amp traditionalists out there who love the single-channel simplicity of medium-powered combo will have a lot to like here. If this is a step into the future of guitar amp design then it ...

It utilized four EL34 output tubes, one GZ34/5AR4 rectifier ... have gone out of production). “The amp can be restored with its original design intact or, if one desires, it can be heavily ...

Credit: Bad Cat / YouTube Mark Sampson, one of the great pioneers of tube amp design, has died. A legendary name in US high-end guitar amps, Sampson co-founded Matchless and was the brains behind ...