revered top echelon sonics worldwide! ei yugoslavia tubes were made w/ the highest quality euro tooling of the tube-era
these rare 6dj8 ecc88 resonator getters are the best versions to hear and all test pristine at 130/130 % gm
smooth detailed imaging and airy deep bass, one of the best valvo germany alternatives and just as rare! (bass kings)
not to be confused w/ parasol getters, these limited runs have an immersive smooth sound stage for a variety of vocal types
these audio grade phono ready top ranked upgrades are great for stereos, preamps, hifidelity apps, tube mics + more
for circuits that are touch on 6922/e88cc lifetime, try 6dj8 ecc88 for a zoomed in hifidelity immersive sound stage
this pristine set of 3 w/ ei etch codes includes plain or branded boxes, collectible pair and a spare!
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fully tested for gm conductance 130/130~130/130~130/130 % mutual gm (65 % good) perfectly balanced triodes
our unique mutual gm output test applies 225 vdc simulating actual circuit operations w/ filtered dc!
all tubes also undergo an important life test pass ~ a key longetivity indicator
mutual gm scores = current transfer ability, especially important for push pull amps
also twice tested for unparalleled accurary! via legendary tv7/hickok 539c
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full sound auditioned w/ closed back high resolution monitors and aira preamps for noise and microphonics
we pride ourselves on a proprietary complimentary value-added complete refurb screen and deox process
give 100+ session hours w/ your specific amps voltage to fully cure (break-in is important)
ships well packed worldwide ~ authentic vintage hifidelity audio curation by caliacoustics
check out our official site! reserve/request options, true-nos sealed-box rarities, and limited run special editions