[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 ...

One of the great pioneers of US high-end tube amps, Sampson co-founded Matchless and had recently returned to Bad Cat after a two-decade absence ...

Landreth's D25 might be a single-channel affair with old-school aesthetics but with six onboard virtual cabs, MIDI ...

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 some of the early models ...

“The amp can be restored with its original design intact or ... “There are many options to tube roll to change its sonic characteristics.” Like most vintage audio equipment, original ...

with rounded edges and a sleek design available in either black or red. One big change is the addition of two JAN6418 vacuum tubes, with the M8T featuring both a tube amp and a transistor-based ...