This 1960s RCA 12X4 rectifier tube has black plates and a halo getter. The red print on the glass has the RCA logo. Tube tests as new.
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This Sovtek 6H30Pi-EB tube has gray plates and halo or dish getter. The black print on the glass has the Sovtek logo. Tube tests as new with very low noise.
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The Sovtek 6H30Pi-EB tubes in this precisely matched pair have gray plates and halo or dish getters. Both tubes tests as new with balanced sections and very low noise. They are matched for both current draw (mA) and transconductance (Gm).
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This 1960s Westinghouse 12X4 rectifier tube has black plates and a D getter. The yellow print on the glass has the Westinghouse logo (partial). Tube tests as new.
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This GE 1L6 tube has a silver shield and halo or horseshoe getter. Tube tests as new.
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This ECC189 dual triode tube was made by Mullard and labeled for RTC. It has the highly sought after "A" frame structure with the dimpled disk getter. Tube tests as new.
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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.
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The 1950s National Union 56 triode tubes in this precisely matched pair have black plates and bottom getters with lots of flashing. The white labels on the base have the NU logo. Both tubes test as new with low noise.
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Price: From $34.00 to $57.00
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.
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The military spec GE 5670 /2C51 tubes in this precisely matched pair have black plates and halo getters. The green labels read "JAN-5670W" and the glass is etched with a triangle to indicate special quality. Both tubes test as new with low noise.
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The 1960s military spec RCA 5670 /2C51 tubes in this precisely matched pair have gray plates, triple micas, and D getters. The red print on the glass has the RCA logo and reads "JRC-5670." Both tubes test as new with low noise.
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This 1963 military spec GE 6087 is a ruggedized, indirectly heated 5Y3 tube type. It has black plates, D getter, and a brown base. The white print on the brown base has the 5-star broadcast quality logo, and reads "GL-6087." Tube tests as new.
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This 1960s military spec Mullard CV2748 / GZ30 rectifier is a 5Z4 equivalent. This indirectly-heated rectifier should be considered an upgrade for a 5Y3 tube in most circuits. The Blackburn, UK factory code is etched in the glass. Tube tests as new.
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The 1960s military spec Mullard CV2748 / GZ30 rectifier tubes in this precisely matched pair are 5Z4 equivalents. These indirectly-heated rectifiers should be considered an upgrade for 5Y3 tubes in most circuits. Both tubes test as new.
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This 1963 GE 6AN8A tube has gray plates and a halo getter. The print on the glass has the white GE logo and "6AN8A" is etched in the glass. Tube tests as new with very low noise.
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This 1970s RCA 6AN8A tube has gray plates and a disc getter. The red print on the glass has the RCA logo. Tube tests as new with very low noise.
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This 1962 Mullard ECL82 / 6BM8 tube has gray plates with copper grid posts and a halo getter. The white label has the Mullard label with BVA military insignia. The Blackburn, UK factory code is etched in the glass. Tube tests as new.
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This 1970s GE 6C4 tube has a gray plate and halo getter. The white print on the glass has the GE logo. This tube tests as new with low noise.
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These 1970s GE 6C4 tubes have gray plates and halo getters. The white print on the glass has the GE logo. Both tubes test as new with low noise.
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This 1964 GE 6T9 tube has gray plates and a side getter. The red label has the GE logo. Tube tests as new.
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This 1960s GE 6EU7 tube has short gray plates and a halo getter. The white print on the glass has the GE logo. Tube tests as new with very low noise and ships in its original box.
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The 1964 Mullard 6EU7 tubes in this precisely matched pair have short gray plates with copper grid posts and halo getters. The red label has the 3M logo and the Blackburn, UK factory code is etched in the glass. Both tubes test as new with low noise.
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This 1960s Raytheon 6EU7 tube has short gray plates with copper grid posts and a halo getter. The yellow print on the glass has the Raytheon logo. Tube tests as new with very low noise.
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The 1963 Raytheon 6EU7 tubes in this precisely matched pair have short gray plates with copper grid posts and halo getters. The yellow print on the glass has the Raytheon logo. Both tubes test as new with low noise.
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This 1960s Mullard 6GW8 / ECL86 tube has gray plates with copper grid posts and a halo getter. The Blackburn, UK factory code is etched in the glass. Tube tests as new with low noise.
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The 1960s Siemens 6GW8 / ECL86 tubes in this precision matched pair have gray plates with copper grid posts and halo getters. The red print on the glass has the Zenith logo and reads "Made in W. Germany." Both tubes test as new.
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This 1944 Silvertone 6J5GT/G tube has a black plate and triple mica. The white print on the base has the Super Silvertone logo. Tube tests as new with low noise.
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Price: From $14.00 to $32.00
This 1940s Sylvania 6J5GT/G tube has round black plates and a bottom getter with lots of flashing. The metal collar base has green or black print with the Sylvania lightning logo. Click "more info" for current availability.
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This 1950s Visseaux 6K6GT tube has black plates, a bottom getter, and an engraved bases. The white print on the glass says "Made in France." These Visseaux 6K6GTs are considered some of the best-sounding 6K6 tubes ever made. Tube tests as new.
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The 1950s Visseaux 6K6GT tubes in this precisely matched pair have black plates, bottom getters, and engraved bases. The white print on the glass says "Made in France." Both tubes test as new.
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