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In Reply to: RE: What "ages" tubes quicker; Leaving my headphone amp on or switching it on & off as needed ? posted by Old SteveA on September 20, 2014 at 06:26:32
What kind of tube went bad?
Follow Ups:
I believe it was a Buggle Boy 12ax7 & I'm not using this amp or that tube
anymore .
The tube sounded pretty nice (not the best tube I've used ; but nice all the same)
The amp really had too much of a "hybrid character" to the point of sounding a shade on the
"Cool" side of neutral. ( an honest Neutral is fine, but this Headphone amp sounds a tiny bit too "flat")The current Headphone amp I'm using, is using a set of '74 Siemens E84L (I forget the driver tube) & is about half the cost of the Hybrid Headphone amp ( I believe it is out of production ) . For the life of me I can''t remember why I retired this piece of equipment. ( the driver tube may be the Brimar tube mentioned further up & all tubes came from Tubemonger)
Edits: 09/20/14 09/20/14
What was the mode of failure? Heater out, noisy....?
Sorry, just very curious.
Older Chinese tubes had a terrible heater failure rate, but they seemed to have solved that issue.
With NOS stuff I rarely have any issues....
I think that may have been the reason I switched to using NOS tubes.
Now that I think of it ,it was'nt that Hybrid headphone amp that I would discover a tube had died in . It was (yet another) headphone amp . It was an "entry level priced" tube HP amp from a fairly new at the time American
Company.
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