ChrisX
New Head-Fier
- Joined
- Jan 10, 2009
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Dsavitsk would have to answer that, but my guess is yes. If they're my tubes, please let me know and I'll replace them with something better matched.
That was one pair of the kit indeed. Thanks for the offer but I plan to use the 6J6 only for initial setup and I'm going to switch to E90CC anyway, so the tubes are ok for me.
We tend to use DC matching as a proxy for AC matching, but who knows whether this is a reasonable thing to do for any given tube. The easiest way to check yours would be to play a 60Hz tone and measure the AC output from both channels with a multimeter (even cheap meters can measure 60Hz reasonably accurately.) That should give you an idea how mismatched your tubes are. And truth be told, tube matching is not that important here. They'd have to be way way off be before you'd hear much of a difference..
Thanks for the idea about AC matching. I will try to match the best pair of my 5-pack of E90CC this way. I assume that this will give more useful results than matching with my very simple Sencore tester. I have access to a good multimeter so maybe I can also measure at higher frequencies. But first I will make the proposed measurement with the 6J6 mentioned above to get a feeling about the relation between DC and AC mismatch.