(!!) (Recommended Pair) 272A Western Electric "meshplate" NOS and low hours/like new 1940's - 1951 (6.3ma and 6.4ma)
(!!) (Recommended Pair) 76 Sylvania black plate NOS mid-1940's (4.7/4.7ma) 1-2% matched
(!!) (Recommended Pair) 76 Sylvania black plate NOS mid-1940's (5.1/5.0ma) 1-2% matched
(!!) (Recommended Pair) 76 Sylvania black plate NOS mid-1940's (5.3/5.6ma) 1-5% matched
(!!) (Recommended Single) 47 Raytheon NOS 1947 (31ma Gm=2520)
(!!) (Recommended Single) 47 Raytheon NOS 1955 (35.6ma Gm=2680)
(!!) (Recommended Single) 47 Sylvania NOS 1952 (38.6ma Gm=2750)
(!!) (Recommended SIngle) 6V6GT Raytheon Silvertone black coated glass NOS 1940's (50.5ma)
(!!) (Recommended Single) JAN-CRC-1629 RCA NOS 1940's bright eye
(!!) (Recommended) JAN-CKR-1629 Ken Rad NOS 1940's bright eye
(!!) (SINGLE) 307A=VT-225 Sylvania NOS 1940's (44ma)
(!!) (Single) 47 RCA Victor NOS 1940's (32ma Gm=2620)
(!!) (sold out) JAN-CRC-808 RCA NOS 1943-1945 (strong output)
(!!) 1629 RCA NOS 1961 bright eye
(!!) 403A=6AK5 Western Electric NOS 1974 (6.6ma)
(!!) 403A=6AK5 Western Electric used/good 1970 (8.2ma)
(!!) 403B=6AK5 Western Electric NOS "O" getter 1980 in 1979 box (5.8ma)
(!!) 45 RCA NOS ST-14 1955 (29ma)
(!!) 45 RCA Victor NOS in RCA box 1948 (39ma)
(!!) 6SN7GT Raytheon taller bottle parallel black plates NOS 1949 (8.2/8.0ma)