The Blackjack 21 MKII is powered by 2 x 6V6 tubes and 3 x 12AX7 Preamp tubes. Wondering if anyone has seen the insides of a Black Jack 21 MKII and how close it is to an ODS circuit? The price is nice and they seem to. . With a non-master volume clean channel and overdrive channel with input gain control, the Fuchs Blackjack 21 lets you dial in a perfect amount of tube grit. This amp hits a nice sweet spot between tone and affordability. Available as a head, or combo. The 12”. Fuchs Blackjack 21 Demo. Fuchs Audio Technology Casino Blackjack 21 Watt 1x12" Tube Guitar Combo Amp · Watts: 21 Watts of Class AB power · Tubes: 2 x 6V6 Watts Class AB, 3 x 12AX7. The Blackjack is one of our best selling amps in our companies history. 21 watts of classic rock and blues tone take you from studio to stage, night after night. Pair the head up with one of our. Fuchs black Jack 21 MKII Play through with a Fender Strat and a PRS S2 Signal chain- x2 Marshall 4x12's mic'd with a Shure Sm 57 and an AEA. . Many boutique amps are over $2,, but the Blackjack head can be had for around $, but is. K views · 5 years ago. Today we take a look at the Fuchs Blackjack 21 amp Support us on Patreon! / zimmsguitars. At 21 watts of tube power, this amp can handle studio and stage volume. Blackjack™: 2 x 6V6 Watts Class AB 3 x 12AX7 Preamp tubes.