ALL TUBES ARE TESTED BEFORE SHIPMENT. PLEASE GO TO OUR "POLICIES AND STATEMENTS" SECTION FOR WARRANTY AND SHIPPING INFORMATION.SMALL SIGNAL TUBES FOR AUDIOPHILE USE, WHERE INDICATED ARE TESTED FOR STANDARD SPECIFICATIONS AND ARE FURTHER TESTED FOR NOISE, MICROPHONICS, DISTORTION AND VOLTAGE GAIN. VOLTAGE GAIN IS THE MOST ACCURATE INDICATOR OF HOW A TUBE WILL OPERATE IN YOUR PRE AMP OR AMP. WE MATCH INTO PAIRS WHERE INDICATED.
POWER TUBES ARE MATCHED FOR PLATE CURRENT AND TRANSCONDUCTANCE ON A DIGITAL MAXI-MATCHER AT REAL OPERATING VOLTAGES FOR A VERY CLOSE MATCH.
EL509/6KG6, 6C33C-B CAN NOW BE BURNED IN AND MATCHED ON OUR SPECIALLY BUILT GEORGE KAYE TESTER! PAIR AND QUAD MATCHING OF THESE 2 TUBE TYPES IS NOW AVAILABLE!
