1 pair) 6BQ5 Sylvania black plate 1960”s and 1973 (recommended for fixed bias amp only)

1 tube) 68.0ma Gm=12,700 (1973)

1 tube) 62.5ma Gm=12,400 (1960”s)

MATCHED ON AMPLITREX AT1000:

Vplate=325V

VScreen=250V

Vgrid=-7.7V

Good Ma range 40-48ma

Recommended for

Reinhardt 18W (Marshall clone), TRIODE TRV-84HD made in JAPAN, Gibson GA-5 Les Paul Junior, 65amps London head, 65amps Lil Elvis combo, Consonance Cyber 20 headphone amp, Dr. Z Carmen Ghia 2005, 2006, Leak Stereo 20, Lafayette LA-224A, VOX AC10, AC15, AC30, LEBEN CS-300XS, Lexicon Signature 284, Epiphone Valve Junior, Shindo Montille, Ming Da MC 84C07 headphone amp, Manley, RM10, Marshall EL84 amp 1974, Matchless C-30, C30, Elk Sonic 102 Japanese copy of a Fender Vibrolux