This 1953 Western Electric 300B has a bottom D getter and yellow print on the base. Tube tests at 49.2 mA for current draw (82%) and 4810 Gm for transconductance (87%). The base has a hairline crack (see photo); flashing and pins are in good condition.
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This 1954 Western Electric 300B has a bottom D getter and yellow print on the base. Tube tests as new with 61.8 mA for current draw (103%) and 4740 Gm for transconductance (86%). Flashing, pins, base all in good condition (see photos).
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This 1959 Western Electric 300B has a bottom D getter and yellow print on the base. Tube tests as new with 64.6 mA for current draw (108%) and 5400 Gm for transconductance (98%). Flashing, pins, base all in good condition (see photos).
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This 1960 Western Electric 300B has a bottom D getter and yellow print on the base. Tube tests as new with 58.5 mA for current draw (98%) and 5200 Gm for transconductance (95%). Flashing, pins, base all in good condition (see photos).
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This 1967 Amperex 5842 tube is a 417A triode tube type made famous by Western Electric. It has a metallic gray plate, a D getter, and gold pins. The red print on the glass has the RCA logo. Tube tests as new with low noise.
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This 1960s Raytheon 5842 tube is a 417A triode tube type made famous by Western Electric. It has a metallic black plate and halo getter. The red print on the glass has the Raytheon logo. Tube tests as new with low noise.
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This 1960s Raytheon 5755 tube is a military spec equivalent to the Western Electric 420A dual triode. It has smooth gray plates and a clear top. The yellow print on the glass has the Raytheon logo. Tube tests as new and with balanced and very low noise.
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The 1961 Raytheon 5755 tubes in this precisely matched pair are the military spec equivalent to the Western Electric 420A dual triode tube. They have smooth gray plates and clear tops. Both tubes test as new and are matched for both current draw and Gm.
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The Raytheon 5755 tubes in this precisely matched pair are the military spec equivalent to the Western Electric 420A dual triode. They have smooth gray plates and clear tops. Both tubes test as new and are matched for both current draw and Gm.
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Price: From $69.00 to $74.00
This 1959 Western Electric JW 5755 tube is a military spec 420A dual triode. It has smooth gray plates and a windmill getter. Tube tests as new with very low noise and ships in its original box.
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The 1959 Western Electric JW 5755 tubes in this precisely matched pair are the military spec equivalent to the 420A dual triode. They have smooth gray plates and windmill getters. Both tubes test as new and are matched for both transconductance and mA.
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This 1940s 717A was made for Western Electric by Raytheon. It has a metal base (base has some oxidation--see photo). Tube tests as new.
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This 1940s military spec 717A was made for Western Electric by Raytheon. Its metal base has black lettering that reads JAN-CRP-717A VT-269. There is some oxidation on the base. Tube tests as new and comes in the original box.
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This 1940s military spec 717A pentode was made for Western Electric by Tung-Sol. The glass has heavy chrome flashing and is labeled Tung-Sol WE 717A. It also has a metal base, which may have some oxidation. Tube tests as new.
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