another rare audiophile classic! reference grade highly regarded suresnes france preamp audio tube, the top sonic echelon

the crown jewel of any collection, rich romantic veil imaging w/ one of a kind high resolution frame grid holographics

old stock ediswan 6dj8 ecc88 by rt france w/ very early philips tooling and engineering technology, pristine nos spec 

this very hard to find 1958 has special internals that will outperform most 6dj8 ecc88 without the dreaded island effect

6dj8 ecc88 are a popular tuning choice in preamps mics stereos and highlight a variety of genres w/ gorgeous mids

 old production '50s tubes have the most precious tube-era metallurgy warmth and tone quality

full amplification test / tight match 118 / 120 % mutual gm (100nos/65good) + life short gas life

our unique mutual gm output test applies 225 vdc simulating actual circuit operations w/ filtered dc

all tubes also undergo a proprietary complimentary master refurb process! one of a kind seller qc

give 100+ session hours w/ your specific amps voltage to fully cure / flash

ships well packed worldwide w/ amperex boxes + combined postage available

~vintage audio curation by caliacoustics~