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Precision Matched Power Tubes

Accurate power tube matching can minimize the risk of early tube failure and maximize power tube performance in your amp. All our precision matched power tubes are:

  1. Burned in
  2. Tested with Amplitrex AT1000 at typical operating conditions and matched for both current draw (mA) and transconductance (Gm) (more info)
  3. Run under load in a custom test fixture that can match your operating conditions (more info)
Displaying products 1 - 8 of 8 results
ElectroHarmonix 6CA7 / EL34 - precision matched
ElectroHarmonix 6CA7 big bottle tetrode - precision matched
Price: $20.00
ElectroHarmonix 6CA7 big bottle tetrode - precision matched
The ElectroHarmonix 6CA7EH big bottle tetrode is the budget sleeper tube of the new production EL34/6CA7/KT77 family. Recommended for demanding, higher voltage amps. These tubes can take the heat! Price includes extended burn-in and precision matching.
Genalex Gold Lion KT77 reissue - premium matched
Genalex Gold Lion KT77 reissue - precision matched
Price: $46.00
Genalex Gold Lion KT77 reissue - precision matched
These new production Genalex Gold Lion KT77 power tubes can directly substitute for 6CA7 or EL34 type tubes. Price includes extended burn-in and precision matching.
Sovtek 6550WE - premium matched
Sovtek 6550WE - precision matched
Price: $29.00
Sovtek 6550WE - precision matched
The Sovtek 6550WE features thicker plates, improved heat dissipation, higher transconductance, and increased linearity. The result is higher output power, greater headroom, and superior tone. Price includes extended burn-in and precision matching.
Tung-Sol 5881 reissue - premium matched
Tung-Sol 5881 reissue - precision matched
Price: $19.00
Tung-Sol 5881 reissue - precision matched
These new production Tung-Sol 5881 power tubes are based on the original 1960s Tung-Sol 5881. They are a 23 Watt 6L6GB equivalent rated for 400 V. Price includes extended burn-in and precision matching.
Tung-Sol STR 6L6GC reissue - premium matched
Tung-Sol STR 6L6GC reissue - precision matched
Price: $19.00
Tung-Sol STR 6L6GC reissue - precision matched
These new production Tung-Sol STR 6L6GC power tubes are built to the same Special Tube Request specs of leading 1960s amp manufacturers. These 30 Watt power tubes are rated for 500 Volts, making them a great choice for demanding guitar amp circuits.
SED
Vintage Svetlana (SED / Winged C) 6550B - St. Petersburg, precision matched
Price: $39.00
Vintage Svetlana (SED / Winged C) 6550B - St. Petersburg, precision matched
This new old stock 6550B power tube is the predecessor to the highly regarded current production SED Winged C 6550C tube made in St. Petersburg, Russia. Same great quality at a much lower price! Price includes extended burn-in and precision matching.
Genalex Gold Lion KT88 reissue - premium matched
Genalex Gold Lion KT88 reissue - precision matched
Price: $52.00
Genalex Gold Lion KT88 reissue - precision matched
These new production Genalex Gold Lion KT88 power tubes are based on the original Marconi-Osram Valve Co. made in the 1960s. Price includes extended burn-in and precision matching.
Tung-Sol KT120 - premium matched
Tung-Sol KT120 - precision matched
Price: $44.00
Tung-Sol KT120 - precision matched
With a plate dissipation of 60 watts, the Tung-Sol KT120 is the most powerful tube in the 6550/KT88/KT90 family. A matched pair in push-pull configuration can deliver 150 watts of power. Price includes extended burn-in and precision matching.
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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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