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Old Triodes and Radio Tubes

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Cunningham CX-301A / 01A triode - globe bottle, engraved base
Cunningham CX-301A / 01A triode - globe bottle, engraved base
Price: $37.00
Cunningham CX-301A / 01A triode - globe bottle, engraved base
This 1930s Cunningham CX-301A power output triode is compatible with any long-pin 01A type tube (201A, 301A, UX-201A, CX301A). Its globe bottle is completely enveloped in flashing. The engraved black base has the Cunningham logo. Tube tests as new.
1L6 heptode
Price: $57.00
1L6 heptode
This 1959 Sylvania 1L6 tube has a silver shield and halo or horseshoe getter. The print on the glass is labeled for Sylvania or GE. Tube tests as new. It ships in its original box.
Silvertone 30 / 230 triode - matched pair
Silvertone 30 / 230 triode - matched pair
Price: $44.00
Silvertone 30 / 230 triode - matched pair
The 1930s Silvertone 230 tubes in this precisely matched pair are vintage 4-pin triodes compatible with any 30 triode. The engraved bases have the Super Silvertone logo. Both tubes test as new and are matched for both current draw (mA) and Gm.
Western Electric 417A / JW 5842 triode
Western Electric 417A triode
Price: $99.00
Western Electric 417A triode
This 1960-61 Western Electric 417A triode has black plates and a halo D getter. The yellow print on the glass has the Western Electric logo. Tube tests as new with low noise.
Raytheon 420A / CK 5755 - clear top
Price: $59.00
Raytheon 420A / CK 5755 - clear top
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.
Raytheon 420A / 5755 - matched pair, clear top
Raytheon 420A / CK 5755 - matched pair, clear top
Price: $124.00
Raytheon 420A / CK 5755 - matched pair, clear top
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.
Western Electric 420A / JW 5755
Western Electric 420A / JW 5755
Price: From $69.00 to $74.00
Western Electric 420A / JW 5755
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.
Western Electric 420A / JW 5755 - matched pair
Western Electric 420A / JW 5755 - matched pair
Price: $189.00
Western Electric 420A / JW 5755 - matched pair
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.
Ken-Rad 45 triode - matched pair
Ken-Rad 45 triode - matched pair
Price: $129.00
Ken-Rad 45 triode - matched pair
The Ken-Rad 45 triode tubes in this precisely matched pair have ST bottles and bottom dish getters. The silver labels have the Ken-Rad and Crosley logos. Both tubes test good and are matched for both current draw (24.0 & 24.8 mA) and Gm (81% & 82%).
National Union 45 triode - various labels, matched pair
National Union 45 triode - various labels, matched pair
Price: $154.00
National Union 45 triode - various labels, matched pair
The National Union 45 triode tubes in this precisely matched pair have ST bottles and bottom getters. They have silver print on the base. Both tubes test as new and they are matched for both current draw (34.5 & 38.9 mA) and Gm (120% & 125%).
Philco 45 triode - matched pair, engraved base
Philco 45 triode - matched pair, engraved base
Price: $139.00
Philco 45 triode - matched pair, engraved base
The Philco 45 triode tubes in this precisely matched pair have ST bottles and engraved bases (Philco & Champion). The Champion tube has the number 45 scratched in the base. They are matched for both current draw (27.8 & 28.0 mA) and Gm (93% & 96%).
Sylvania 45 triode - matched pair, engraved base
Sylvania 45 triode - matched pair
Price: $154.00
Sale Price: $115.50
Sylvania 45 triode - matched pair
The Sylvania 45 triode tubes in this precisely matched pair have ST bottles and bottom dish getters. One tube has the Philco logo engraved. Both tubes test as new and are matched for both current draw (33.6 & 36.0 mA) and Gm (102% & 105%).
on sale
Arcturus 56 triode - blue globe bottle, engraved base
Arcturus 56 triode - blue globe bottle, engraved base
Price: $99.00
Arcturus 56 triode - blue globe bottle, engraved base
This gorgeous 56 vintage 5-pin triode by Arcturus has a blue globe bottle and engraved black base in outstanding condition. I've listened to this tube in a 300B SET amplifier and verified that it is not microphonic and it does not hum.
National Union 56 triode - matched pair
National Union 56 triode - matched pair
Price: $59.00
National Union 56 triode - matched pair
The 1940s National Union 56 tubes in this precisely matched pair are vintage 5-pin triodes. The white print on the base has the National Union logo. Both tubes test as new and are precisely matched for both current draw (mA) and Gm.
RCA JAN 56 triode - matched pair
RCA JAN 56 triode - matched pair
Price: From $39.00 to $59.00
RCA JAN 56 triode - matched pair
The military spec RCA 56 tubes in this precisely matched pair are vintage 5-pin triodes. They have black plates and bottom getters. The silver print on their black bases reads U.S. Navy CRC 56. Click "more info" for current availability.
Sylvania 56 triode - matched pair
Sylvania 56 triode - matched pair
Price: From $29.00 to $57.00
Sylvania 56 triode - matched pair
The Sylvania 56 tubes in this matched pair are vintage 5-pin triodes. They have black plates and bottom getters. Their black bases have green print with the early Sylvania leaf logo. Both tubes test as new and are precisely matched.
Marconi 5Z3 - smooth black plates
Marconi 5Z3 - smooth black plates
Price: $49.00
Marconi 5Z3 - smooth black plates
This Marconi 5Z3 rectifier tube was made in Canada. It has smooth black plates and bottom D getter. The red print on the base has the Marconi Radiotron logo. Tube tests as new with balanced diode sections.
Ken Rad JAN CKR 6B4G triode - black glass, matched pair
Ken Rad JAN CKR 6B4G triode - black glass, matched pair
Price: $149.00
Ken Rad JAN CKR 6B4G triode - black glass, matched pair
The 1940s military spec Ken-Rad 6B4G triode tubes in this precisely matched pair have black glass and bottom getters. The silver labels have the Ken-Rad logo and reads "JAN-CKR-6B4G." Both tubes test as new. Click "more info" for test results.
Raytheon 6B4G triode - matched pair
Raytheon 6B4G triode - matched pair
Price: $149.00
Raytheon 6B4G triode - matched pair
The 1940s Raytheon 6B4G triode tubes in this precisely matched pair have ST bottles, black plates, and bottom D getters with lots of flashing. The orange print on the black bases has the Raytheon logo. Click "more info" for test results.
Raytheon 6E5 - magic eye tube
Raytheon 6E5 - magic eye tube
Price: $49.00
Raytheon 6E5 - magic eye tube
This 1957 Raytheon 6E5 magic eye tube tuning level indicator has a green phosphor element. The yellow print on the base has the Raytheon logo. Tube tests as new / very bright.
6E5 Sylvania - eye tube
Sylvania 6E5 - magic eye tube
Price: $49.00
Sylvania 6E5 - magic eye tube
This 1950s Sylvania 6E5 magic eye tube tuning level indicator has a green phosphor element. The green print on the base has the Sylvania lightning logo or military JAN CHS label. Tube tests as new / very bright.
Tung-Sol 6E5 - magic eye tube, loose particle
Tung-Sol 6E5 - magic eye tube, loose particle
Price: $49.00
Sale Price: $29.00
Tung-Sol 6E5 - magic eye tube, loose particle
This 1950s Tung-Sol 6E5 magic eye tube tuning level indicator has a green phosphor element. The white print on the base has the Tung-Sol logo. Tube tests as new / very bright. It is discounted because there is a loose glass particle inside the bottle.
on sale
National Union NX171A tiode - matched pair
National Union 71A triode - globe bottle, matched pair
Price: $159.00
National Union 71A triode - globe bottle, matched pair
The National Union 71A tubes in this precisely matched pair have silver plates and globe bottles with lots of chrome flashing. The engraved bases have the National Union logo and read "NX-171-A." Both tubes test as new.
RCA 71A triode - various labels, matched pair
RCA 71A triode - various labels, matched pair
Price: $94.00
RCA 71A triode - various labels, matched pair
The RCA 71A tubes in this precisely matched pair are 4-pin triode power tubes. They have silver plates and ST bottles with lots of chrome flashing. One tube is labeled for Raytheon and the other is labeled for Cunningham. Both tubes test as new.
Raytheon JAN-CRP-717A / VT-269 Pentode
Raytheon JAN-CRP-717A / VT-269 Pentode
Price: $41.00
Raytheon JAN-CRP-717A / VT-269 Pentode
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.
Tung-Sol WE 717A / VT-269 pentode
Tung-Sol WE 717A / VT-269 pentode
Price: $46.00
Tung-Sol WE 717A / VT-269 pentode
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.
Western Electric 717A / VT-269 Pentode
Western Electric 717A / VT-269 Pentode
Price: $54.00
Western Electric 717A / VT-269 Pentode
This military spec Western Electride 717A tube is a pentode that can also be wired as a triode. It has a side getter and metal base. The label on the glass reads "Western Electric 717A VT-269 by Raytheon." Tube tests as new.
Western Electric 717A / VT-269 Pentode - matched pair
Price: $109.00
Western Electric 717A / VT-269 Pentode - matched pair
The military spec Western Electride 717A tubes in this precisely matched pair are pentode tubes that can also be wired as triodes. The label on the glass reads Western Electric 717A VT-269 by Raytheon or by Tung-Sol. Both tubes test as new.
Cunningham CX-380 - globe bottle, engaved base
Cunningham CX-380 - globe bottle, engaved base
Price: $119.00
Cunningham CX-380 - globe bottle, engaved base
This very rare Cunningham 380 rectifier tube has a large globe bottle and smooth black plates. The engraved base reads "Cunningham CX 380." Tube tests as new with balanced diode sections.
80 Rectifier Tube - ST bottle, engraved base
RCA Cunningham 80 - engraved base
Price: $34.00
RCA Cunningham 80 - engraved base
This early 1940s RCA 80 rectifier tube is the vintage 4-pin predecessor to the 5Y3. It has an ST bottle. The engraved base has the early RCA Cunningham logo. Tube tests as new.
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TC Tubes specializes in precision testing and matching of vintage and new production vacuum tubes for guitar & bass players, audiophiles, and DIY tube audio enthusiasts. Our website features secure payment options and fast, convenient shipping around the world.

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