With the price of vintage HOT TUBES soaring countless guitarists have requested that EH re-issue our 1970s CMOS HOT TUBES. They’ve done it using the exact same design and miniaturized it too! Volume and Overdrive let you go from a gentle rasp that caresses your notes to a full-blown gain monster with a powerhouse punch. Sculpt your sound with the Tone control or take a detour around the tone circuit with the Tone On/Off switch. True bypass for a pristine signal chain.