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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 and Grado dealer.
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Price: $52.00
Sale Price: $41.60
These new production Genalex Gold Lion KT66 power tubes can be run in any amp that uses 6L6 or 5881 type tubes. They are a faithful reproduction of the tubes used in Clapton's Bluesbreaker amp and popular Heathkit and Leak hi-fi amps from the 1960s.
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The 1970s Sylvania 6550 power tubes in this matched pair have welded gray plates, 3 getters, and metal collar bases. The blue or green print on the glass has the PhilipsECG. Click "more info" for test restuls.
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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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The 1960s Brimar CV4004 tubes in this precisely matched pair are mil spec 12AX7 tubes made in Great Britain. They have long narrow plates and halo getters. The white print on the glass has the Brimar logo. Both tubes test as new with phono grade noise.
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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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This GE 6072A tube is a military spec 12AY7 type tube. It has black plates with support rods and a disc getter. The label on the glass is missing and 6072A is etched in the glass. Tube tests as new with balanced sections and phono grade noise levels.
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The Genalex KT66 power tubes in this precisely matched pair have gray glass, bottom getters, and brown bases. They are matched for both current draw (64.0 mA & 64.0 mA) and transconductance (111% & 111% Gm).
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This rare 1958 Mullard 12AU7 / ECC82 has long plates and a dual post halo getter (k61 series). The early Mullard shield logo is partial and the Blackburn, UK factory code is etched in the glass. Tube tests as new with phono grade noise levels.
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This rare 1955 Mullard EF86 / 6267 tube has mesh plates and a D getter. The white label has the Mullard shield logo and "Made in Gt. Britain" is printed along the bottom. The Blackburn, UK factory code is etched in the glass. Tube tests as new.
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The 1965 Philips Miniwatt 12AU7 / ECC82 tubes in this precisely matched pair have gray plates and halo getters. The Heerlen, Holland factory code is etched in the glass. Both tubes tests as new with balanced sections and very low noise.
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The 1971 RCA 6FQ7 / 6CG7 tubes in this precisely matched quad have gray plates, side getters, and clear tops. The red print on the glass has the RCA logo (may be partial). Both tubes test as new with balanced sections.
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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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This very rare 1940s military spec Tung-Sol 6SN7GT tube has black glass, round black plates with copper grid posts, and a round mica. The white print on the glass has the Mullard shield logo. Tube tests as new with balanced sections.
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The 1966 Westinhouse 7591 tubes in this precisely matched quad have gray plates and halo and side getters. The yellow print on the base has the Westinghouse logo. All 4 tubes test as new and are matched for both current draw (mA) and Gm.
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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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