Holy-Grail Preamplifier Tubes

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This is the finest ever NOS 1960's TELEFUNKEN ULM, 46 YEAR OLD PRISTINE NOS, THE MOST SCARCE of the ECC83 12AX7 variant designed for superior QUIET performance, 50,000 hour heater-life, PERFECT BALANCE, SHOCK & VIBRATION RESISTANCE, and high-bandwidth musical sound reproduction - TELEFUNKEN ULM "HOLY-GRAIL OF ECC83 12AX7 CLASS TUBES. PRICE IS FOR THE BALANCED & MATCHED TRIODE SINGLE TUBE! Transform your McIntosh MC-225 or any other 12AX7 amp into a SONIC-DREAM with this single tube.

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WORLD BEST Telefunken ECC802S 12AU7 PERFECT TUBE PAIR WEST GERMANY

WORLD BEST Telefunken ECC802S 12AU7 PERFECT TUBE PAIR WEST GERMANY

Extremely RARE Telefunken <> ECC802S issue Made in ULM! 1960's serial with "ULM" code ULM made ECC802S are considered extinct and searched for because of the rarity of this type of tube made in the ULM factory

ECC81 12AT7 BUGLE-BOY MATCHED PAIR for McIntosh MC

ECC81 12AT7 BUGLE-BOY MATCHED PAIR for McIntosh MC

ECC81 12AT7 BUGLE-BOY MATCHED PAIR for MICS McIntosh MC
EXTINCT RARE "TREBLE-CLEF" CARTOON LOGO & BUGLE PLAYER.

NICE not often seen "Treble-Clef cartoon" on tubes! These make them more collectable and desirable

TUBE MUSEUM QUALITY NOS BUGLE-BOY FRANCE

Picture of the Actual Tubes you will receive - boxes displayed for hisoric representation and not included

PRECISION TESTED ON AMPLITREX AT-1000 TUBE TEST SYSTEMS for the decerning audiophile

nice clean un-burned bottoms with nice pins

tube 1: 10.2mA/9.7mA

tube 2: 9.0mA / 9.8mA

Change your amp into something better with La Radiotechnique, Suresnes, France Bugle-Boy France

ECC81 = 12AT7