1 x NOS 6136 Premium Top Shelf Low Noise Special Grade 6AU6/EF94/6au6a ~ SonyC800/g Altec21 WarmAudio Cal Stam + More ~ Musical Detailed Clarity Warm Bass ~ Military Selection

warm, musical, low-noise, excellent clarity and detail, the special edition 6136 is a top sonic contender for mics / amps / tuners ~ military selection / gold series

this premium top shelf low noise upgraded ef94/6au6(a) is essential for special apps like tube mics that require the lowest noise

6136/6au6a feature defined warm up times, higher heater cathode ratings + stable performance under variable conditions including temp/shock

the uncolored sound stage is revered for vocals, instruments and sound reproduction in a variety of hifidelity applications

many listeners + producers mention these as a lower noise improvement over many russian+chinese 6j4p varieties which fail fast

upgrade your sony c800, calrec, c37a or altec 21 / warm audio / golden age mic today! see comprehensive tuner / mic list below for 6au6 compatible apps

note: older sony c800 utilize 2 more 6au6 in the power supply, which would be a great upgrade, see our other 6au6a available

2 in stock ~ full gm conductance test 101% gm (65 % min good) and 110% gm (65 % min good)+ leak short gas check and very useful life test pass! (a key longetivity indicator)

all tubes also undergo a complimentary proprietary value-added refurb screen + deox process! one of a kind qc

give 100+ session hours w/ your specific amps voltage to fully settle in (break-in is important) ~ ships well packed worldwide

some hifi apps for premium grade 6au6a / 6136 low noise editions include:

schoeps cm61 mic ~ sony c800/g mic ~ sony c37a ~ altec 21 ~ calrecmcIntosh mr fm tuners ~ ma 6 multiplex mr 66 adapter (x 1)mr 55 tube am-fm /mono (x 3) ~ mr 55A tube am-fm mono (x 4)mr 65 tube/mono (x 4) ~ mr 65b tube fm tuner stereo (x 4)mr 66 tube mono/stereo (x 4) ~ mr 67 tube fm tuner stereo (x 3)mr 71 tube fm/stereo (x 4) ~ mx 110 (x 3)warm audio wa8000 ~ stam audio sa800g mk1golden age premier ga8000 + more apps!