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(!!!!) (Best Value Pair) 6C4WA Philips JAN by Sylvania NOS 1987 (8.8ma and 9.2ma) (same Gm)

(!!!!) (Best Value Pair) 6C4WA Philips JAN by Sylvania NOS 1987 (8.8ma and 9.2ma) (same Gm)

$ 21.99
(!!!!) (Best Value Pair) EC92=6AB4 Telefunken Germany <> bottom NOS 1964-1965 (7.3ma and 7.0ma) (same Gm) (mic)

(!!!!) (Best Value Pair) EC92=6AB4 Telefunken Germany <> bottom NOS 1964-1965 (7.3ma and 7.0ma) (same Gm) (mic)

$ 144.44
(!!!!) (Best Value Pair) JAN-7308 Raytheon NOS 1968 (15.2/10.4ma and 16.8/12.5ma)

(!!!!) (Best Value Pair) JAN-7308 Raytheon NOS 1968 (15.2/10.4ma and 16.8/12.5ma)

$ 198.88
(!!!!) (Best Value Single) ECC83=12AX7 Telefunken Germany <> bottom ribbed plates branded GAP/R Computor tube used/good 1956 (Gm=1400/1500 and 0.8/0.9ma) 1-5% section balance

(!!!!) (Best Value Single) ECC83=12AX7 Telefunken Germany <> bottom ribbed plates branded GAP/R Computor tube used/good 1956 (Gm=1400/1500 and 0.8/0.9ma) 1-5% section balance

$ 149.99
(!!!!) (Good Value Pair) 6SN7GTB GE used/good 1956-1957 (7.6/6.8ma and 6.6/7.3ma) (same Gm)

(!!!!) (Good Value Pair) 6SN7GTB GE used/good 1956-1957 (7.6/6.8ma and 6.6/7.3ma) (same Gm)

$ 69.99
(!!!!) (Good Value Pair) 6SN7GTB GE used/good 1958-1961 (6.4/6.8ma and 6.4/6.6ma)

(!!!!) (Good Value Pair) 6SN7GTB GE used/good 1958-1961 (6.4/6.8ma and 6.4/6.6ma)

$ 69.99
(!!!!) (Single) 5692 RCA RED BASE black plates used/good 1953 (7/8ma) (Schiit Saga+)

(!!!!) (Single) 5692 RCA RED BASE black plates used/good 1953 (7/8ma) (Schiit Saga+)

$ 169.99
(!!!!) (Single) 6922=E88CC Siemens Halske Germany branded RCA gray shield used 1966 (12/9.2ma)

(!!!!) (Single) 6922=E88CC Siemens Halske Germany branded RCA gray shield used 1966 (12/9.2ma)

$ 49.99
(!!!) (Best Pair #3) 448A Western Electric tipped top used/good 1965-1966 (28ma and 29.2ma) (same Gm)

(!!!) (Best Pair #3) 448A Western Electric tipped top used/good 1965-1966 (28ma and 29.2ma) (same Gm)

$ 109.99
(!!!) (Best Pair #3) 448A Western Electric tipped top used/strong 1965 (30ma and 32ma) (Matched on Amplitrex)

(!!!) (Best Pair #3) 448A Western Electric tipped top used/strong 1965 (30ma and 32ma) (Matched on Amplitrex)

$ 119.99
(!!!) (Best Pair #4) 448A Western Electric tipped top used/tests like new 1965 (26.4ma and 26.8ma)

(!!!) (Best Pair #4) 448A Western Electric tipped top used/tests like new 1965 (26.4ma and 26.8ma)

$ 109.99
(!!!) (Best Pair) 5751 GE double mica gray plates NOS 1979-1981 (2.4/2.5ma and 2.3/2.6ma) 1-3% matched (Close Gm)

(!!!) (Best Pair) 5751 GE double mica gray plates NOS 1979-1981 (2.4/2.5ma and 2.3/2.6ma) 1-3% matched (Close Gm)

$ 139.99
(!!!) (BEST PAIR) 7233 GE NOS 1965 (102-102/60)

(!!!) (BEST PAIR) 7233 GE NOS 1965 (102-102/60)

$ 59.99
(!!!) (Best Value Pair) ECC84=6CW7 Ultron East Germany by RFT 1970's (10.5/11.5ma and 10.0/10.4ma)

(!!!) (Best Value Pair) ECC84=6CW7 Ultron East Germany by RFT 1970's (10.5/11.5ma and 10.0/10.4ma)

$ 15.99
(!!!) (Best Value Pair) ECC84=6CW7 Ultron East Germany by RFT 1970's (12.8/10.6ma and 11.8/11.6ma)

(!!!) (Best Value Pair) ECC84=6CW7 Ultron East Germany by RFT 1970's (12.8/10.6ma and 11.8/11.6ma)

$ 15.99
(!!!) (Good Value Pair) JHS-5687WA Sylvania used/very good 1960's faded printing (35.4/34.2ma and 37.0/36.5ma)

(!!!) (Good Value Pair) JHS-5687WA Sylvania used/very good 1960's faded printing (35.4/34.2ma and 37.0/36.5ma)

$ 69.99
(!!!) (Good Value Single) 12AU7 EICO Holland used/good 1961 (8.0/9.6ma)

(!!!) (Good Value Single) 12AU7 EICO Holland used/good 1961 (8.0/9.6ma)

$ 49.99
(!!!) (Recommended Pair 1963) JG-5751 GE double mica gray plates NOS 1963 (2.0/1.9ma and 1.9/1.8ma) (same Gm)

(!!!) (Recommended Pair 1963) JG-5751 GE double mica gray plates NOS 1963 (2.0/1.9ma and 1.9/1.8ma) (same Gm)

$ 119.99
(!!!) (Recommended Pair) 407A Western Electric used/good 1963-1964 (35-38/26 and 36-38/26)

(!!!) (Recommended Pair) 407A Western Electric used/good 1963-1964 (35-38/26 and 36-38/26)

$ 54.99
(!!!) (Recommended Pair) 6DJ8=ECC88 Telefunken Germany <> bottom NOS branded Valvo 1960's (12/12.8ma and 13.8/12.6ma)

(!!!) (Recommended Pair) 6DJ8=ECC88 Telefunken Germany <> bottom NOS branded Valvo 1960's (12/12.8ma and 13.8/12.6ma)

$ 299.99
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