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GE 6550 / 6550A - matched pair
GE 6550 / 6550A - matched pair
Price: $189.00
GE 6550 / 6550A - matched pair
The late 1970s GE 6550A power tubes in this precision matched pair have crimped gray plates, 3 getters, metal collar bases, and 188-5 factory code (Owensboro, Ky). Tubes test as new and are precisely matched. While supplies last!
GE 6L6GC - premium matched pair
GE 6L6GC - precision matched pair
Price: $119.00
GE 6L6GC - precision matched pair
The GE 6L6GC power tubes in this precisely matched pair have gray plates, dual side getters, and black bases. The white print has the GE logo and 188-5 factory code (Owensboro, Ky). Tubes test as new and are matched for current draw (mA) and Gm.
Sylvania 6550 - matched quad
Sylvania 6550 - matched quad
Price: $434.00
Sylvania 6550 - matched quad
The late 1970s Sylvania 6550 power tubes in this precisely matched quad have welded gray plates, 3 getters, and metal collar bases. The green print on the glass has the Philips ECG logo. Tubes test as new and are precisely matched.
Vintage Svetlana
Vintage Svetlana "Winged C" 6AS7G / 6H13C
Price: $54.00
Vintage Svetlana "Winged C" 6AS7G / 6H13C
This vintage Svetlana "Winged C" 6H13C dual triode power tube is a Russian 6AS7G tube type popular in OTL and headphone amplifiers. It has black plates and dual bottom getters with lots of flashing. Tube tests as new with very low noise.
Amperex 12AX7 / ECC83 - Bugle Boy label, phono grade
Amperex 12AX7 / ECC83 - Bugle Boy label, phono grade
Price: $114.00
Amperex 12AX7 / ECC83 - Bugle Boy label, phono grade
This 1962 Amperex Bugle Boy 12AX7 / ECC83 tube has gray plates and a large halo getter (I65 series). It has the famous Bugle Boy label. The Heerlen, Holland factory code is etched in the glass. Tube tests as new with phono/V1 grade noise levels.
Amperex 6DJ8 / ECC88 - matched pair
Amperex 6DJ8 / ECC88 - white HP label, phono grade, matched pair
Price: $129.00
Amperex 6DJ8 / ECC88 - white HP label, phono grade, matched pair
The 1965 Amperex 6DJ8 / ECC88 tubes in this precisely matched pair have halo getters and silver risers. The white print has the HP logo and the Heerlen, Holland factory code is etched in the glass. Both tubes test as new with phono grade noise levels.
GE 6FQ7 / 6CG7 - gray plates, matched quad
GE 6FQ7 / 6CG7 - gray plates, matched quad
Price: $144.00
GE 6FQ7 / 6CG7 - gray plates, matched quad
The 1970s GE 6FQ7 / 6CG7 tubes in this precisely matched quad have halo getters and gray plates with copper grid posts. The white labels have the GE logo. All 4 tubes test as new and are matched for both mA and Gm.
Mullard 6V6GT - black glass
Mullard 6V6GT - black glass
Price: $49.00
Mullard 6V6GT - black glass
This very rare Mullard 6V6GT has black glass and a bottom getter. The white print on the glass has the Mullard logo and reads "Made in England." Tube tests as new with low noise.
Philips 6V6GT - brown base, matched pair
Philips 6V6GT - brown base, matched pair
Price: $109.00
Philips 6V6GT - brown base, matched pair
The 1960s Philips 6V6GT tubes in this precisely matched pair have brown bases, gray plates, and halo getters with lots of flashing. The yellow print on the glass has the Philips logo and "6V6GTY U.S.A." is etched in the glass. Tubes test as new.
Russian 6Π14Π-EB / 6P14P-EV / 6BQ5 - matched quad
Russian 6P14P-EV / 6Π14Π-EB / 6BQ5 - matched quad
Price: $129.00
Russian 6P14P-EV / 6Π14Π-EB / 6BQ5 - matched quad
The vintage Russian 6P14P-EV (6Π14Π-EB in Cyrillic script) tubes in this precisely matched quad are high-reliability EL84 / 6BQ5 type tubes. They have a higher maximum plate voltage and dissipation than standard 6BQ5 tubes. Tubes test as new.
Tung-Sol JAN 6SL7WGT - ribbed gray plates, brown base
Tung-Sol JAN 6SL7WGT - ribbed gray plates, brown base
Price: $49.00
Tung-Sol JAN 6SL7WGT - ribbed gray plates, brown base
This 1961 military spec Tung-Sol 6SL7WGT tube has ribbed gray plates and a halo getter. The brown base has silver print with the Tung-Sol logo and reads "JAN-CTL-6SL7WGT." Tube tests as new with low noise.
Tungsram 12AU7 / ECC82 - gray plates
Tungsram 12AU7 / ECC82 - gray plates, matched pair
Price: $94.00
Tungsram 12AU7 / ECC82 - gray plates, matched pair
The Tungsram 12AU7 / ECC82 tubes in this precisely matched pair have short gray plates with copper grid posts. They were made in Hungary. The yellow print on the glass has the Tungsram logo. Both tubes test as new with very low noise.
GE JG-5814A / 12AU7 - black plates, triple mica, matched pair
GE JG-5814A / 12AU7 - black plates, triple mica, matched pair
Price: $109.00
GE JG-5814A / 12AU7 - black plates, triple mica, matched pair
The 1963 military spec GE 5814A tubes in this precisely matched pair are 12AU7 type tubes. They have black plates, triple micas, and extra support rods. Both tubes test as new with very low noise. They are matched for both current draw (mA) and Gm.
Sylvania 7025 / 12AX7 - long gray plates, phono grade
Sylvania 7025 / 12AX7 - long gray plates, phono grade
Price: $77.00
Sylvania 7025 / 12AX7 - long gray plates, phono grade
This 1960s Sylvania STR 7025 is a low noise 12AX7 tube type. It has long gray plates with copper grid posts and a halo getter. The yellow label has the Sylvania logo and reads "STR-395." Tube tests as new with high gain and phono grade / V1 noise levels.
Sylvania 2A3 triode - matched quad
Sylvania 2A3 triode - matched quad
Price: $494.00
Sylvania 2A3 triode - matched quad
The 1940s Sylvania 2A3 tubes in this precisely matched pair have black plates and bottom getters. The green print on the bases has the early Sylvania leaf logo. Both tubes test as new and are matched for current draw (48.0-50.5 mA) & Gm (4880-5000).
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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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