What I've been up to lately.

JimJ
5,000+ posts

Tangled Up in Blue
Just some pictures of the new Rogue Audio 66 line preamp, testing it with one monoblock.

66top9rf.jpg


66detail4ld.jpg


tubes4qg.jpg


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Listening test, using an ancient Realistic bookshelf speaker, 12awg flat stranded wire and PG interconnects. Can't wait to get it installed in the real setup in my apartment...

testrig1fp.jpg


tubes0qu.jpg


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Awww, look at those cute little t00bs //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Pretty nice man, some day I'll have my speakers built and I can boast about how much better my setup is than yours.

 
Yeah, it's probably my least favorite...but it was laying around at the time //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

These Mullards sound good. And the seller including a couple-year supply of other 12AU7's isn't bad, even if they are cheaper Russian ones //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 
Listening party at Jim's. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif Er, .. I'll bring the CDs. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

How often do those tubes Poof? How many is a few years' supply?

 
Listening party at Jim's. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif Er, .. I'll bring the CDs. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif
How often do those tubes Poof? How many is a few years' supply?
The tubes in the preamp are good for two years...maybe three if they don't see a lot of use. Same thing for the little driver tube on the monos. The big power triodes actually last longer, I'll probably go three years or a little more between changing those out.

I'll post some glowing shots tonight, but I think the operating points that Rogue uses for the 12AU7s are really low...so there isn't a whole lot of filament glow. The big tubes have thoriated tungsten filaments, so they're going to light up like a Christmas tree no matter how hard they're being run //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 
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JimJ

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