S subzero Member Mar 6, 2014 #1 Finally got some old mullard 6ca7 tubes.Are these same as el-34 or kt 77.What shouldi set for a pair.Thx Pappa.
Finally got some old mullard 6ca7 tubes.Are these same as el-34 or kt 77.What shouldi set for a pair.Thx Pappa.