(!!!) (Best Pair) 6LF6 RCA JAPAN branded Gt. Britain Big Bottle Euro style construction NOS 1973-1975 (115ma and 116ma) 1-2% matched
(!!) (Best Pair) 6LF6 RCA and GE Heerlen Holland Big Bottle NOS 1967-1969 (132ma and 136ma) (Counterpoint OTL, Futterman OTL, Prodigy OTL)
(!!) (Best Value Pair) 6MH6=6LF6 GE NOS 1975-1981 (143ma and 144ma)
(!!) (Recommended Pair) 6LF6 JAPAN Big Bottle Euro style construction NOS 1970's (92ma and 87ma)
(!!) (recommended Pair) 6LF6 RCA JAPAN branded Gt. Britain Big Bottle Euro style construction NOS 1976 (133ma and 141ma)
(!!) (Recommended Pair) 6LF6 Sylvannia NOS same build 1970 era (121ma and 127ma) (Counterpoint OTL, Futterman OTL, Prodigy OTL)
(!!) 6LF6 GE Heerlen Holland Big Bottle NOS 1967 (113ma) (Counterpoint OTL, Futterman OTL, Prodigy OTL)
(!) (Recommended Pair) 6LF6 Sylvania NOS same build (115ma and 121ma) (Counterpoint OTL, Futterman OTL, Prodigy OTL)
6LF6 Amperex Heerlen Holland Big Bottle NOS 1967 (122ma and 125ma) (Counterpoint OTL, Futterman OTL, Prodigy OTL)
6LF6 GE Zenith NOS 1978 (155ma) (Counterpoint OTL, Futterman OTL, Prodigy OTL)
6LF6 RCA JAPAN branded Gt. Britain Big Bottle Euro style construction low hours/like new 1976 (104ma)
6LF6 RCA JAPAN branded Gt. Britain Big Bottle Euro style construction NOS 1973 (141ma)
6LF6 RCA JAPAN branded Gt. Britain Big Bottle Euro style construction NOS 1973 (92ma)
6LF6 Sylvania NOS 1970's (134ma) (Counterpoint OTL, Futterman OTL, Prodigy OTL)
6LF6 Westinghouse JAPAN branded Gt. Britain Big Bottle Euro style construction NOS 1974 (87ma)
6LX6=6LF6 GE branded Westinghouse NOS (82ma)
6LX6=6LF6 GE NOS (75ma)
6LX6=6LF6 GE Zenith NOS 1978 (99ma)
6LX6=6LF6 Sylvania Philips NOS (91ma)
