Introduced in 1948, the 5687 was oe designed for avionics (arinc), w/ high transconductance for industrial and military use. audio note m3, manley jumbo shrimp, ayon cd player, audio note dac 5 signature, audio note amp kits.
Item Tag: nec nippon
2x Matched 3Mica 6CA7 EL34 NEC Nippon (WE Japan) /Rare Vintage NOS Power Tubes
El34 has an expansive history, known for pronounced distortion characteristics, distinct over other power tubes such as 6550 marantz, dynaco mark 2/4 +stereo-70, leak st-50/60, scott, hiwatt, orange, laney, heath, traynor, eico, fisher, pye mozart +more.
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2x Vintage WeldPlate 6CA7 EL34 NECNippon (WE Japan) PowerTubes /Digital Tested
El34 has an expansive history, known for pronounced distortion characteristics, distinct over other power tubes such as 6550 marantz, dynaco mark 2/4 +stereo-70, leak st-50/60, scott, hiwatt, orange, laney, heath, traynor, eico, fisher, pye mozart +more.
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1x VintageNOS NECNippon (WEJapan) 12AD7 /Rare LowNoise 12AX7 ECC83 Sub /Grail
The rare audiophile 12ad7 was introduced in 1955, as a low-noise/low-hum 12ax7 on steroids! predating the legendary 7025. full mutual conductance gm test + leak / short / gas / sound checks + life test (a key longetivity indicator).