vintage mullard are audiophile crown jewels, rich warm holographic sound reproduction, dynamic bass, and articulate detail
the liquid mid-band reveal, polished tonality, and oustanding top-end extension, all contribute to their sought after sonic lore
collectible same code b9j1 aframe feature some of the best tube-era metallurgy as transistors took over, w/ lots of personality
these special hp editions were hand selected (out of thousands!?) for instrument grade apps, w/ an ultra low noise floor db
increase harmonic fidelity today, upgrade your preamp, stereo, or tube mic! popular 6922 alternative w/ a great low register

2x authentic old stock mullard gt britain 6dj8 ecc88 w/ nice silkscreens, special hp selected (low noise) editions

authentic blackburn england production etch, same code pair! b9j1, w/ rare (hard to find pristine) oe boxes


full mutual conductance gm micromhos test + leak/short/gas/life tests: pristine tv7 balanced pair: 82/88 (62) 84/78 (62)
our high power output test measures the entire linear curve (eg-ip), and applies up to 250v ~ more than many other testers
+ undergoes a proprietary refurbish and complimentary deoxit proces ~ a one of a kind value-added quality control

give several sessions (100+ hours) to fully settle in w/ your amps voltage
ships well packed worldwide! priority/express by special request

~ authentic vintage hifidelity audiophile preamp / power / rectifier / mic tube curation ~
see our new arrivals, official site, reserve/request pricing options, true-nos sealed box rarities