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MULLARD EL34 6CA7 MATCHED PAIR DUAL HALO BLACKBURN XF2
MULLARD EL34 6CA7 MATCHED PAIR DUAL HALO BLACKBURN XF2
MULLARD EL34 6CA7 MATCHED PAIR DUAL HALO BLACKBURN XF2


 
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Product Code: MULLARD EL34 XF2
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MULLARD EL34 6CA7 MATCHED PAIR DUAL HALO BLACKBURN XF2

The Legendary 1960's EL34 "Xf2" by Mullard, Blackburn, U.K.

The World's most musical EL34 tube known for it's pronounced liquid midrange.  

Amplitrex Digital tested and plate matched for your musical pleasure

Selected for Uniquely Matched Plate-Resistance (Rp) & Tube-Gain (Mu)!

..." This tube is known for excellent performance, incredible bottom end, pronounced liquid midrange, outstanding highs. Described as the most musical sounding EL34 in the world, one of the most rugged longest lasting EL34's ever made, recently imitated but never equaled, clean, and powerful.  These 1960's legends have a super polished and quite refined bass, midrange, top end. A Major improvement over other 6CA7's.  Get rid of those Chinese or Russian 6CA7's and UPGRADE to original Mullard U.K. power tubes - which are Superior by far to Svetlana or Sovtek re-issue EL34's"...

PRICE IS FOR 2 BALANCED & MATCHED TUBES  Mullard EL34 Xf2 Matched Pair

BEAUTIFUL "BUGLE-BOY" LOGO TUBES AVAILABLE

MATCHED PAIR with Double Getters TUBE MUSEUM QUALITY STRONG LEGENDARY BLACKBURN U.K. POWER TUBES

LOW-NOISE - BEAUTIFUL SOUNDING - 1960's RARE MADE IN U.K. AUDIO TUBES

TWO (2) of the Rare Mullard U.K. Blackburn Xf2 Production, with 2-Getters per tube! Very Compelling Musical Tone with Long 10,000 Hour Heater Life!

These twin top-mica shields are designed to "deflect" unwanted electron bombardment to prevent cathode-poisioning. They work as a deflector-shield and help the tube achieve its correct operation point and last longer and operate cooler.

Recommended for:

Conrad Johnson
Dynaco ST-70
Vox
Park
HiWatt
Matchless
Marshall JTM combo 50 watts 1978
Marshall "Plexi"
Fender Amps
Musicman

These tubes are "PROFESSIONAL SPECIAL QUALITY" Premium Quality Amplitrex Digitally Tested Audio tubes

Authentic Mullard el34 Xf2 MADE in the U.K. in the 1960's

Factory Codes Xf2 Bxxx and Xf2 Bxxx

Beautiful old-world construction WORLDS SUPERIOR TO NEWER MADE CHINESE OR RUSSIAN TUBES in electrical conductivity
Factory Specification @ Real World Operating Voltage of 250Volts

Xf2 Bxxx Testing 79.2mA emissions.  Xf2 Bxxx Testing 76.0mA emissions.

Most NOS 6CA7 test between 85%-90% in GM right from the Factory

It's the mA emissions that REALLY MATTER in a EL34/6CA7

11.400/10,300 GM (min.= 5,400)  

All Tubes Tested on Amplitrex AT1000 DIGITAL ELECTRON TUBE TEST SYSTEM @ 250V REAL WORLD POWER!

TubeMuseum tested tubes takes the guesswork out of the process of selection delivering you the best Audio tubes that there possibly can be.

Beautiful Pair Balanced & Matched @ fixed bias mode @ 250 VOLTS!

CERTIFIED ULTRA-LOW NOISE TOP-GRADE

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