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New Production Power Tubes
In order to get an accurate match for new production power tubes, it's important to be sure that:
- The tubes have been burned in for 48 hours--After performing thorough tests before and after burn in, we have found that the change in readings for gas, emissions, and transconductance was significant enough to require a 48 hour burn-in period for accurate matching.
- The tubes are matched to within 10% emissions (mA) and 5% transconductance (gm). In fact, we are almost always able to match new production tubes to within 1-4% on both scales. This takes more time on our part, but we feel the benefits are worth it.
All new production power tubes we offer are burned in for 48 hours and then tested to get the most precise matches for both emissions and transconductance. Please be aware that most vendors do not go to these lengths to assure tight matches for both mA and gm. Many simply run tubes for a while in a Maxi-matcher, match according to mA and call it done. If you want the most out of your amp be sure the vendor you buy from tests thoroughly!
Price: Starting at $26.00
These EL34 power tubes are made exclusively at the SED SPb factory in St. Petersburg and they bear the "Winged C" logo. The current production SED SVEL34 tubes meet or exceed the original version. Prices include extended burn-in and precision matching.
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Price: Starting at $26.50
Sale Price: Starting at $23.85
These new production Genalex Gold Lion N709 / EL84 power tubes are based on the classic Marconi-Osram Valve Co. version. Prices include extended burn-in and precision matching. Click "more info" for a Sovtek EL84 / Genalex N709 comparison chart.
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Price: Starting at $42.00
Sale Price: Starting at $37.80
These new production Genalex Gold Lion KT77 power tubes can directly substitute for 6CA7 or EL34 type tubes. Prices include extended burn-in and precision matching.
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Price: Starting at $49.50
These KT88 power tubes are made exclusively at the SED SPb factory in St. Petersburg and they bear the "Winged C" logo. The current production SED SVKT88 tubes meet or exceed the original version. Prices include extended burn-in and precision matching.
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Price: Starting at $53.50
Sale Price: Starting at $48.15
These new production Genalex Gold Lion KT88 power tubes are based on the original Marconi-Osram Valve Co. made in the 1960s. Prices include extended burn-in and precision matching.
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Price: Starting at $34.50
These 6550 power tubes are made exclusively at the SED SPb factory in St. Petersburg and they bear the "Winged C" logo. The current production SED SV6550C tubes meet or exceed the original version. Prices include extended burn-in and precision matching.
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Price: Starting at $34.50
Sale Price: Starting at $31.05
These new production Tung-Sol 6550 power tubes are based on the original type 3 Tung-Sol 6550 made in the 1960s. Prices include extended burn-in and precision matching.
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Price: Starting at $26.00
These 6L6GC power tubes are made exclusively at the SED SPb factory in St. Petersburg and they bear the "Winged C" logo. The current production SED SV6L6GC tubes meet or exceed the original version. Prices include extended burn-in and precision matching.
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Price: Starting at $37.00
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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TC Tubes specializes in precision testing and matching of vintage and new production vacuum tubes for guitar players, DIY tube audio enthusiasts, and audiophiles.
We also offer high quality and hard to find parts for DIY tube amplifier projects.
Our website features secure payment options and fast, convenient shipping around the world.
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