12SF5 US Brands NOS (5 in stock)

12SF5 US Brands NOS

1) RCA Victor 1948 1.2ma Gm=1600

1) RCA 1.0ma Gm=1500

1) RCA 0.7ma Gm=1400

1) RCA 1948 some surface rust around bottom edge of can 1.4ma Gm=1600

1) Raytheon 1.5ma Gm=1600

– David Berning phono preamp