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Denon AH-2000 Headphones with Pelican Case - 25 Ω
Denon AH-2000 Headphones with Pelican Case - 25 Ω
Price: $374.00
Denon AH-2000 Headphones with Pelican Case - 25 Ω
Denon's AH-D2000 high-performance headphones are powered by a 50-mm driver and have a frequency response range from 5 to 45000 Hz with an impedance level of 25 Ohms and 106 dB sensitivity. These lightly used headphones are in excellent condition.
James Audio JS-6223HS Push-Pull Output Transformers - factory matched pair
James Audio JS-6223HS Push-Pull Output Transformers - factory matched pair
Price: $259.00
James Audio JS-6223HS Push-Pull Output Transformers - factory matched pair
This factory matched pair of 90mA, 20W James Audio JS-6223HS power output transformers is recommended for DIY push-pull tube amplifiers built for tube types that can run at 3.4K, such as 2A3, 6A3, 6A5G, 6B4G and 300B.
Amperex PQ 6DJ8 / ECC88 - premium matched pair
Amperex 6DJ8 / ECC88 - PQ label, matched pair
Price: $154.00
Amperex 6DJ8 / ECC88 - PQ label, matched pair
The Amperex PQ 6DJ8 / ECC88 tubes in this precisely matched pair were made in Holland (Heerlen factory code) and have dimpled disc getters with A-frame support. Both tubes test as new with low noise and are precisely matched for current draw (mA) and Gm.
Brimar 12AT7WA / CV4024 - military spec
Brimar 12AT7WA / CV4024 - military spec
Price: From $39.00 to $44.00
Brimar 12AT7WA / CV4024 - military spec
This 1966 Brimar CV4024 / 12AT7WA tube has black wing style plates with copper posts and a halo getter. The white label has the Brimar logo and BVA military insignia, and says "Made in England." Tests as new with very low noise.
Mullard 12AU7 / ECC82 - matched pair
Mullard 12AU7 / ECC82 - matched pair
Price: $129.00
Mullard 12AU7 / ECC82 - matched pair
The 1974 Mullard 12AU7A / ECC82 tubes in this precisely matched pair have gray plates and halo getters. The white label has the Mullard logo with BVA military insignia. The Blackburn, UK factory code is etched in the glass. Both tubes test as new.
Mullard 12AX7 / ECC83 - Telefunken logo, phono grade
Mullard 12AX7 / ECC83 - Telefunken logo, phono grade
Price: From $154.00 to $159.00
Mullard 12AX7 / ECC83 - Telefunken logo, phono grade
This 1967 Mullard ECC83 / 12AX7 tube has a halo getter and short gray plates (I63 series). The white label has the Telefunken logo and its marked "SELECTED TUBE." The Blackburn, UK factory code is etched in the glass. Click more info for test results.
Mullard GZ34 / 5AR4 - 7 notch plates
Mullard GZ34 / 5AR4 - 7 notch plates
Price: $154.00
Mullard GZ34 / 5AR4 - 7 notch plates
This 1970 Mullard GZ34 / 5AR4 full-wave rectifier tube has plates with 7 notches and a hole in the centering pin (f32 series). The white label has the Mullard IEC logo. The Blackburn, UK factory code is etched in the glass. Tests as new.
RCA 6FQ7 / 6CG7 - side getter, matched pair
RCA 6FQ7 / 6CG7 - side getter, matched pair
Price: $109.00
RCA 6FQ7 / 6CG7 - side getter, matched pair
The 1965-67 RCA 6FQ7 / 6CG7 tubes in this precisely matched pair have gray plates, side getters, and clear tops. The red print on the glass has the RCA logo. Both tubes test as new with balanced sections.
Telefunken 12AX7 / ECC83 - smooth plates, matched pair
Telefunken 12AX7 / ECC83 - smooth plates, matched pair
Price: $269.00
Telefunken 12AX7 / ECC83 - smooth plates, matched pair
The 1960s Telefunken 12AX7 / ECC83 tubes in this precisely matched pair have smooth plates and the diamond imprint in the base. The white labels have the Telefunken logo. Both tubes test as new with balanced sections & phono grade noise levels.
Tung-Sol 12AY7 - gray plates
Tung-Sol 12AY7 - gray plates
Price: $69.00
Tung-Sol 12AY7 - gray plates
This unusual 1961 military spec Tung-Sol 12AY7 tube has short gray plates and a halo getter. The white print on the glass has the Tung-Sol logo and reads "JAN-12AY7." Tube tests as new with balanced sections and very low noise.
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.
ElectroHarmonix 6H30Pi - gold pins
ElectroHarmonix 6H30Pi - gold pins
Price: $33.00
ElectroHarmonix 6H30Pi - gold pins
The ElectroHarmonix 6H30Pi tube is a super linear, military spec dual triode tube made in Russia. It has the same internal construction as the Sovtek 6H30Pi, except the EH 6H30Pi has gold pins and has been selected for tighter tolerances and lower noise.
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.

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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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