Rare Double Dgetter Matsu/Mullard 6CA7 EL34 NHK Selection NOS AudioTube FreePost

Rare Double Dgetter Matsu/Mullard 6CA7 EL34 NHK Selection NOS AudioTube FreePost
Rare Double Dgetter Matsu/Mullard 6CA7 EL34 NHK Selection NOS AudioTube FreePost
Rare Double Dgetter Matsu/Mullard 6CA7 EL34 NHK Selection NOS AudioTube FreePost
Rare Double Dgetter Matsu/Mullard 6CA7 EL34 NHK Selection NOS AudioTube FreePost
Rare Double Dgetter Matsu/Mullard 6CA7 EL34 NHK Selection NOS AudioTube FreePost
Rare Double Dgetter Matsu/Mullard 6CA7 EL34 NHK Selection NOS AudioTube FreePost

Rare Double Dgetter Matsu/Mullard 6CA7 EL34 NHK Selection NOS AudioTube FreePost

Old stock vintage production matsu national 6ca7 el34 power preamp audio output tube. The rarest first edition w/ double-dgetter tone and special comms grade nhk selection, collectible.

Legendary mullard tooling warmth and quality influence via'transfer of technology' licensing agreements. National tubes feature uniform noise-free characteristics, long service life, and superior sound reproduction. Sonic review: "great balance across the whole range, simply wonderful rich full sound".

Direct japan import carefully curated. And pictured special old box. Full amplification test 95 % gm (65 % good) + our useful life test pass! No meter movement at all.

Our unique gm output test applies 225 vdc simulating actual circuit operations w/ filtered dc + leak short gas. Also supplier double checked via tv7 for conductance, while your bench results will vary the circuit test is the best test. Authentic vintage hifidelity audio curation by caliacoustics.
Rare Double Dgetter Matsu/Mullard 6CA7 EL34 NHK Selection NOS AudioTube FreePost