an audiophile classic! also check out our official website, and free postage on all orders
1 vintage nos matsu national japan 5ar4 gz34 rectifier audio preamp tube, revered tone! quite rare dual-disc getter edition
these had legendary mullard tooling and quality influence via 'transfer of technology' licensing agreements
national tubes feature uniform characteristics, long service life, noise free operation, and superior sound reproduction
from old japan collectors carefully curated screened + twice tested, includes fragile oe or plain new box depending on stock
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full amplification test, 3 available: 98/98 ~ 98/97 ~ 96/95 % gm (65 % good) + useful life test pass! didnt move the meter
this unique mutual gm output test applies 225 vdc simulating actual circuits w/ filtered dc + leak short gas check
also supplier tested for conductance... while your bench results will always vary the circuit test is the best test
all tubes also undergo a proprietary refurb screening and deox process, one of a kind value-added seller qc!
ships fast well packed worldwide ~ 3 in stock see above