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Mullard EL34 / 6CA7 - Xf4, matched pair

Mullard EL34 / 6CA7 - Xf4, matched pair
Price: $179.00
1 matched pair in stock
Item Number: 590
Manufacturer: Mullard

The 1975 Mullard EL34 / 6CA7 power tubes in this pair have welded plates, single O getters, and holes in the centering pins (Xf4 series). The orange label has the Amperex globe logo. The Blackburn, UK factory codes are etched in the glass.

These tubes are matched for both current draw (34.4 & 35.8 mA) and transconductance (5200 & 5400 Gm) at 500V. They were tested at typical operating voltages on a laboratory grade Amplitrex AT1000. This testing process also includes screening for gas, heater-cathode leakage, shorts, noise, and excessive microphonics. Learn more about our testing process here.


Price is for the pair (2 matched tubes) and includes standard testing service. Tubes ship in new white boxes with test results for current draw (mA) and transconductance (Gm).

These tubes are sold as a matched pair. Photos are of the actual tubes.
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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