(!!!!) (Best Single) 5692 RCA RED BASE black plates NOS 1961 (7.7/8.5ma) 1% Gm balance
(!!!!) (Recommended Single) 5692 RCA RED BASE black plates used/good 1953 (7/8ma) (Schiit Saga+)
(!!!!) (Recommended Single) 5692 RCA RED BASE dark black plates like new 1948 (7.4/7.8ma) (Schiit Saga+)
(!!) 5692 CBS Hytron brown base used/65% and 80% 1957 (6.6/7.8ma)
