(!!!) (BEST PAIR) 6LF6 Sylvania NOS 1970's short bottle (103ma and 99ma) (close Gm) (Counterpoint OTL, Futterman OTL, Prodigy OTL)
6LF6 GE Zenith NOS 1978 (155ma) (Counterpoint OTL, Futterman OTL, Prodigy OTL)
6LF6 Sylvania branded Zenith NOS 1964 (115ma) (Counterpoint OTL, Futterman OTL, Prodigy OTL)
6LF6 Sylvania NOS 1970 era (98ma) (Counterpoint OTL, Futterman OTL, Prodigy OTL)
6LF6 Zenith NOS 1978 (101ma) (Counterpoint OTL, Futterman OTL, Prodigy OTL)
