we pride ourselves on a proprietary value-added complete refurb screening and deox process = crystal-clear audio grade
also be sure to check out our official site! more rare part numbers added daily including sealed box true nos...+ free postage!
~
hard to find direct japan import 7dj8 white-tip matsu preamp audio tube from 1963 w/ oe box, phenomenal 6dj8 circuit plugin
this rare limited run (special leaf-spring-getter) tube has less breakup vs. mullard and more clarity up top w/ less noise
these are popular for amps that are tough on tube lifetime, especially e88cc/6922 which can fail fast depending on load
this .3a constant 7dj8 also has more upper register detail reveal, an audiophile 'secret' tube w/ additional low-end kick
national tubes are revered worldwide for their hard vacuum quality longetivity and rich warm pure sound reproduction
add airy fidelity to vocals + dazzling sweet tone extension to your preamp/stereo/tube mic, try them in any ecc88 position today!
~
full amplification test 130/130 % gm (65% good) + important life test pass! no meter movement at all
high gm scores relate to amplification capability via gain and bass response, especially useful for push pull apps/amps
our unique mutual gm output test applies real world voltages w/ filtered dc plus an impeccable gas test and leak/short check
give 100+ session hrs w/ your specific amps voltage to fully cure, ships fast worldwide well packed w/ real oe box
~authentic vintage hifidelity audio curation by cali acoustics~