(!) (~ Best Pair ~) 12SA7 RCA NOS (4.6ma and 4.6ma) 1% matched
12.10.22 (!) (Best Pair) 12SA7 RCA NOS (4.8ma and 4.9ma)
12SA7GT Mullard Holland used/good 1960 (3.8ma)
12SA7GT Nat. Union used/good 1950 era (2.8ma Gm=800)
12SA7GT Raytheon used/good (2 in stock)
12SA7Y RCA brown bottom NOS 1955 (4.7ma)
