(!!!) (Best 6112 Pair) 6112 Philips JAN 1980's (.7/.7ma and .7/.8ma) 1-2% matched (Audio Note, Musical Fidelity)
(!!) (Recommended Pair) 6112 Philips JAN 1980's (.6/.8ma and .7/.7ma) (Audio Note, Musical Fidelity)
6112A GE NOS 1956 (.8ma/1.0ma) (tested on Amplitrex) (1 tube only)
