1 x Rare NOS Valvo Hamburg Germany 6201 Gold Pin ~ SQ Miniwatt Authentic 1964 Production ~ HolyGrail 12AT7 ECC81 ~ Musical Dynamic Warm Vintage Holographic Transparency ~ E81CC 12AT7WA

the breath of life! premium grade 6201 w/ special upper mica dampeners, 1964 hamburg germany valvo, authentic collectible

the legendary valvo hamburg sound stage is clear, harmonically rich, lush, transparent imaging, and a phenomenal bass stage

often dubbed the bass king! valvo hamburgs incredibly flat-response captures a vivid lucid encompassing reproduction of sound

the increased attack + extension adds musicality to a variety of genres, and high-end frequency clarity (moreso than telefunken)

sound reproduction is warm, airy, dynamic, and immersive ~ add fidelity and definition to any 12at7 ecc81 sound system/circuit

valvo data books note the special quality series utilizes long life layer free cathodes, tight tolerances, and vibration resilience

the low noise limited run gold pin 6201 is a highly regarded audiophile crown jewel, premium top echelon 12at7 ecc81 upgrade

1 x old stock valvo hamburg w/ nice special quality miniwatt silkscreens, rare collectibles w/ valvo hamburg boxes 

1964 build codes available ~ d4a3 / d4a3 ~ d4b2 / d4b2, authentic etch hamburg germany production

full gm conductance test, 4 in stock, nos pristine:

130/125 % gm d4a3 etch code ~ 130/126 % gm d4a3 etch code (65% min good) 

121/120 % gm d4b2 etch code ~ 115/114 % gm d4b2 etch code (65% min good)

+ useful life test pass! (a key longetivity indicator) + an impeccable gas / leak / short check

+ complimentary value-added refurb screen and deoxit process ~ one of a kind quality control

give several sessions or up to 100+ hours w/ your specific amps voltage to settle / break-in

ships well packed worldwide