Among the series of miniature Noval Double Triodes, the ECC81 or 12AT7 and all its equivalents, including the professional 6201 version (Ultra-Prof the PINCHED WAIST), has been one of the most used tubes ever. Initially conceived for VHF, thanks to its excellent characteristics, HIGH gain and low internal resistance, it has been increasingly and considerably used also in the world of AUDIO and low frequency in general. The 6201 is by definition the PROFESSIONAL version with US marking (the European ECC801S). This is the 6201 produced in Germany, in Hamburg, by VALVO with code "D", marked PHILIPS MINIWATT (on this occasion as distributor and further guarantor of the product), Golden Pins connection, S.Q. series = SPECIAL QUALITY and "ultra selected" version PINCHED WAIST". Practically more is difficult to ask! As in the photo the valves are totally NOS in beehive cardboard for HIGH precision industrial supplies, mainly Civil but also Military. The structure is absolutely impeccable with dark gray plates, rounded grooves on the ends , as well as being clipped on one side; Full-round multi-layered Mica for maximum vibration reduction. TESTS over 100% and excellent balancing. RARE Professional Valve.
EQUIVALENT: 12AT7 = ECC81 = E81CC = A2900 = CV6091 = 6201 = 6060 = 6679 = 7492 = CV4024 = CV455 = M8162 = CV6091 = 12AT7WA = 12AT7WB = 12AT7WC = 33A/101K = 7728 = QA52406 = B172406 = CV1 = B1 CV3508
PLEASE NOTE:
- EVERY SINGLE TUBE IS STRICTLY TESTED, PAIRS & QUARTETS AVAILABLE OR MORE!
Some of the equipment on which the use of this valve is recommended:
- Manley
- LTV amps
- Earmax Silver Edition
- APEX 460 (sub for 12AX7)
- WAVAC 805 SE amp
-Kora integrated amp
- tube microphones
-CJ PV10A
- Manley Reference Cardioid mic
- Atma-Spere Preamplifier MP-1 Mk. III
- Reader CDP0.6T
- Berning
- Audio Experience Balanced A2
- Art Pro VLA II
-Monarchy SE250
- Eclair Engineering 'Evil Twin' Tube DI (direct input box)
- JC Morrison custom phono
- David Berning Quadrature Z amp