1x NOS Brimar GtBritain GoldGrid BlackPlate 12AT7 ECC81 ~ Grail Audio 6021 13D9 ~ Open Tone Great Bass Spatial Sound Warm Vintage ~ Several More Types Available: 6060 12AT7WA CV4024 w/ 10mm/14mm 1-hole/2-hole

a collectible audiophile darling! premium vintage brimar gt britain ~ a beautiful open tonality w/ revered black plate dynamics

these old stock 12at7 ecc81 feature a larger 14mm box plate w/ 2-holes, for increased resonance and air over 'wa' rugged editions

the legendary black carbide plate coating radiates heat faster, reduces plate temps, and enhances breakup + tonal characteristics

these also feature the sought after copper grid rods, which minimize cathode-current contamination, w/ better temp dissipation

a breathtaking liquid juicy vibe, neat and sweet, no loss of detail, w/ great extended response, and incredible bass transparency

often compared to mullard sound stages, brimar bva have improved tonal depth, more vocal sexiness, and a dynamic luminosity

featuring tweedy yet crisp vocal articulation, intimate acoustics, resolving instrumental separation, and percussion definition

the colorful lush live-concert harmonics, expansive sound, and dimensional frequency bloom, all contribute to the sonic lore

est. 1933, brimar bva was part of stc (similar to western electric) and a british valve assocation member, along w/ mullard/gec

often seen under the names ediswan, thorn, aei, and mazda, brimar are known for their cv military grade top echelon valves

1 x old stock 12at7 ecc81 brimar england w/ gold grids, 2-hole 14mm box plates, and black carbide coating, we also have several 10mm 1-hole box plate 6060 / 12at7w / cv4024 in stock

authentic british etch code visible and nice silkscreen, includes plain or branded tube box

+ includes complimentary pin protector and optional harmonic-distortion-dampener

full mutual conductance test + life test pass (key longetivity indicator) + leak / short / gas check

our high power output test simulates real circuits, and applies up to 250v, more than many other testers

+ undergoes a complimentary refurbish and deoxit process ~ one of a kind value-added qc

give several sessions or 150+ hours w/ your amps voltage to fully break-in / cure

ships well packed worldwide!