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(!!!!) (Best Overall Pair) 6CA4 RFT East Germany (Funkwerk) NOS 1970's (49/40 and 49/40 x 2 tubes) 1% matched

(!!!!) (Best Overall Pair) 6CA4 RFT East Germany (Funkwerk) NOS 1970's (49/40 and 49/40 x 2 tubes) 1% matched

$ 59.99
(!!!!) (Best Pair) 6CA4 RFT East Germany (Funkwerk) NOS 1970's (49/40 and 50/40 x 2 tubes) 1% matched

(!!!!) (Best Pair) 6CA4 RFT East Germany (Funkwerk) NOS 1970's (49/40 and 50/40 x 2 tubes) 1% matched

$ 54.99
(!!!!) (Best Quad) EZ81=6CA4 RFT East Germany (Funkwerk) NOS 1970's (1 quad)

(!!!!) (Best Quad) EZ81=6CA4 RFT East Germany (Funkwerk) NOS 1970's (1 quad)

$ 99.99
(!!!!) (Recommended Pair) 6CA4 RFT East Germany (Funkwerk) NOS 1970's (48-48/40 and 49-49/40)

(!!!!) (Recommended Pair) 6CA4 RFT East Germany (Funkwerk) NOS 1970's (48-48/40 and 49-49/40)

$ 47.99
(!!!!) (Recommended Pair) 6CA4 RFT East Germany (Funkwerk) NOS 1970's (47-48/40 and 48-48/40)

(!!!!) (Recommended Pair) 6CA4 RFT East Germany (Funkwerk) NOS 1970's (47-48/40 and 48-48/40)

$ 49.99
(!!!!) (Recommended Pair) 6CA4 RFT East Germany (Funkwerk) NOS 1970's (49-49/40 and 48-49/40)

(!!!!) (Recommended Pair) 6CA4 RFT East Germany (Funkwerk) NOS 1970's (49-49/40 and 48-49/40)

$ 49.99
(!!!) (Best Single) EZ81=6CA4 RFT East Germany NOS 1970's (49/40 and 49/40)

(!!!) (Best Single) EZ81=6CA4 RFT East Germany NOS 1970's (49/40 and 49/40)

$ 24.99
(!!!) (Best Single) EZ81=6CA4 RFT East Germany NOS 1970's (49/40 and 50/40)

(!!!) (Best Single) EZ81=6CA4 RFT East Germany NOS 1970's (49/40 and 50/40)

$ 24.99
(!!!) (Best Single) EZ81=6CA4 RFT East Germany NOS 1970's (50/40 and 50/40)

(!!!) (Best Single) EZ81=6CA4 RFT East Germany NOS 1970's (50/40 and 50/40)

$ 24.99
(!!!) (Best Value Pair) 12AT7 RFT East Germany branded Haltron NOS 1970's (9.8/8.6ma and 9.3/9.2ma) 1-5% matched

(!!!) (Best Value Pair) 12AT7 RFT East Germany branded Haltron NOS 1970's (9.8/8.6ma and 9.3/9.2ma) 1-5% matched

$ 49.99
(!!!) (Best Value Pair) 12AT7=ECC81 RFT East Germany NOS 1970's (10.0/9.6ma and 10.4/9.6ma) 1-2% matched

(!!!) (Best Value Pair) 12AT7=ECC81 RFT East Germany NOS 1970's (10.0/9.6ma and 10.4/9.6ma) 1-2% matched

$ 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
(!!!) (BEST VALUE PAIR) PCC88=7DJ8 RFT East Germany branded Tesla NOS 1980 era (14/12.5ma and 12.4/15ma)

(!!!) (BEST VALUE PAIR) PCC88=7DJ8 RFT East Germany branded Tesla NOS 1980 era (14/12.5ma and 12.4/15ma)

$ 39.99
(!!!) (Best Value Single) CV4003=12AU7 RFT East Germany NOS 1974 (12.2/12.8ma)

(!!!) (Best Value Single) CV4003=12AU7 RFT East Germany NOS 1974 (12.2/12.8ma)

$ 19.99
(!!!) (Best Value Single) EZ81=6CA4 Sonotone USA branded Westinghouse NOS 1961 (54/40 and 56/40)

(!!!) (Best Value Single) EZ81=6CA4 Sonotone USA branded Westinghouse NOS 1961 (54/40 and 56/40)

$ 39.99
(!!!) (Recommended Single) EZ81=6CA4 RFT East Germany NOS 1970's faded printing (50/40 and 50/40)

(!!!) (Recommended Single) EZ81=6CA4 RFT East Germany NOS 1970's faded printing (50/40 and 50/40)

$ 23.79
(!!!) (SINGLE) EL34 RFT East Germany branded Telefunken used/good 1972 (76ma)

(!!!) (SINGLE) EL34 RFT East Germany branded Telefunken used/good 1972 (76ma)

$ 48.88
(!) (Best Value Single) CV455=12AT7=ECC81 RFT East Germany NOS 1980's (8.4/9.0ma)

(!) (Best Value Single) CV455=12AT7=ECC81 RFT East Germany NOS 1980's (8.4/9.0ma)

$ 15.99

(!) (Best Value Single) ECC82=12AU7 Zaerix East Germany NOS 1970's (12.8/12.0ma) (same Gm)

$ 24.99
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