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Used tubes question

I bought a used quad of xf2's. They were cheap, 150.00 bucks, so I figured I'd give this older-mullard-tube-thing one reads about so much a listen. Now I worry about putting them in my intergrated. I have a Leben CS-600 and fear it going up in flames. The seller said they were closely matched and tested on his such and such tester. He had plenty of positive feedback. Should I just pop 'em in and see what happens? What is the worst that can happen?
oldsalt

Showing 4 responses by oldsalt

oldsalt's avatar
oldsalt OP
17 posts
 
Thanks everyone.
Any suggestions on what to look for in a tube tester? And, will testing tubes keep me from damaging my amp? What should I be on the look out, or, ear out for, when I turn the amp on that might signify a problem? Distortion? Weird tube colors? 10 foot flames?
Thanks again.
oldsalt's avatar
oldsalt OP
17 posts
 
They sound fan-f*ing-tastic. Wow. I'm going to save up for a NOS pair or two. Wow, wow, wow....
oldsalt's avatar
oldsalt OP
17 posts
 
Yes. Yes. Yes.
I've removed the tubes from the amp and encased them in 20 layers of silk velvet. I'm thinking I will only put them in for special occasions. Why waste them on the kids when they are listening to Dan Zanes! No disrespect to the very talented Mr. Zanes intended.
I guess I should just find a NOS quad.
I just ordered some Sylvania 6CS7's today. What about RCA 6CS7's? Do you know of a source for Tung Sol 6CS7's? Really, the rectifier will make that much difference?
oldsalt's avatar
oldsalt OP
17 posts
 
Wow again. What a difference with the Sylvania 6CS7's. It is more dramatic then when I added the xf2's. BTW-The CS-600 is more than respectable and more than little :-).
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