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What’s new
- TUBE REFERENCE
Find out when your Telefunken tube was made: Telefunken tube date codes
- Vintage audio repair services in Twin Cities Metro area, including turn table set-up and site visits. Call for appointment.
- Authorized Ortofon, Grado, and Cardas dealer.
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This GE 6080 dual triode power tube is a ruggedized 6AS7G tube type. It has black plates, top getters, and a metal collar base. The green print on the glass reads "GE JAN-6080WC." Tube tests as new with low noise.
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This 1960s GE 5687WB is a military spec 5687 tube. It has black plates with copper grid posts and a halo getter. The white print has the GE logo with the broadcast quality 5-star label. Tube tests as new with balanced sections and low noise
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This 1953 military spec RCA 5U4G full-wave rectifier tube has an ST bottle, ribbed black plates, and a top getter. The silver print on the base has the RCA logo and reads "JAN CRC-5U4G." Tube tests as new with balanced diode sections.
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This rare 1950 Cunningham 5Y3GT rectifier tube has smooth black plates and bottom D getters. The silver print on the glass has the Cunningham logo. Tube tests as new.
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The 1960s RCA 12AT7 tubes in this precisely matched pair have gray wing plates and halo getters. The red labels have the RCA logo. Both tubes test as new with very low noise.
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The 1954 RCA 6V6GT tubes in this precisely matched pair have gray glass and bottom D getters. Their black bases have silver print with the RCA logo. Both tubes test as new and are matched for both current draw (mA) and Gm.
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The 1960s RCA 6V6GTA tubes in this precisely matched quad have gray plates, bottom D getters, and clear glass. The red print on the bases has the RCA logo. All four tubes test as new for both current draw (mA) and transconductance (Gm).
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The 1964-65 Telefunken 12AX7 / ECC83 tubes in this precisely matched pair have smooth plates and the diamond imprint in the base. The white labels have the Dynaco logo. Both tubes test as new with balanced sections and phono grade noise levels.
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This late 1950s RCA 5751 tube is a lower gain 12AX7 equivalent. It has black plates, a windmill getter, extra support rods, and triple micas. The label is missing. Tube tests as new with low noise.
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This 1957 RCA 5V4G rectifier tube has an ST bottle, black plates, and a bottom D getter. The silver print on the base has the RCA logo. Tube tests as new and ships in its original box.
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The 1976 Amperex 6085 tubes in this precisely matched pair have gray plates with copper grid posts and gold pins. They have orange PQ labels and the Heerlen, Holland factory codes are etched in the glass. Both tubes test as new and are precisely matched.
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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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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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