With music amplifiers basically a couple TO-3's with nominal passive heatsink can output the equivalent 50 watts of a pair of 6L6 vacuum tubes. The tubes run h

With music amplifiers basically a couple TO-3's with nominal passive heatsink can output the equivalent 50 watts of a pair of 6L6 vacuum tubes. The tubes run hotter because of the always-on heated cathode which is not needed for solid state amplification. BTW still have a couple Diablos and a DEC drive, for parts, that could use a home. Also an HP1000 in a full rolling rack the size of a refigerator, plus a VAX 4000, it's a mini-fridge. These are in good shape.