Quote:
Originally Posted by ronenash
I have confirmed with CJ that there was a defective series of tube from EH. It appears the 2010 series of 6922 have had a high failure rate with many going noisy only after a few hundred hours.
I have seen this in the ET3 as well as the ET5. In both cases putting in another tube (either JJ 6922 or even better Gold Lion 6922) took care of the problem.
As a general rule, avoid EH 6922 that have the 2010 date on them.
Tubes is the ET5 should last 3-5 year without a problem.
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Great, that's when I bought a backup pair 
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Myles Astor, Senior Editor., Positive-Feedback.com, Goldmund Telos 300 amplifier, Goldmund Mimesis 37S Nextgen preamplifier, Doshi EVO phono and tape stages; Zellaton Plural EVO speakers; VPI Vanquish Turntable, VPI 12-inch Fat Boy gimbal arm and SAT LM-12 arm; Lyra Atlas SL Lambda, Fuuga mk.2, vdh Colibri Master Signature cartridges; Technics 1506/FM heads; Various cables including TA, MIT, Kubala-Sosna, Skogrand, Viero L3 Equilibrio speaker cables, Audience, SRA Craz 3 rack, Isobase and OHIO Class XL+2.1 platforms.
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