NOS Dgetter Triple Mica Ten KobeKogyo 5751 ~ Rare Premium 12AX7 ECC83 +Original Box ~ Legendary Early Fujitsu Tone

we pride ourselves on a proprietary complimentary value-added complete refurb screen and deox process

old stock ten kobe kogyo (early fujitsu!) 5751 preamp audio tube, premium upgraded 12ax7 ecc83 collectible

very rare triple-mica + dgetter edition w/ original box, revered sound stage worldwide by audiophiles

carefully curated and twice tested direct import w/ nice silkscreens on both sides

full conductance test nos % mutual gm (65%)+ life test pass! (life check = key longetivity indicator)

our special gm output test applies real world 225vdc voltages w/ filtered dc, plus an impeccable gas test and leak/short check

gm scores relate to current-transfer ability, whereas gain relates to signal amplification ~ a subtle difference based on actual voltages

give several sessions or up to 100+ hours w/ your specific amps voltage to fully cure (break-in is important)

ships well packed worldwide ~ authentic vintage hifidelity audio curation