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Tubes for BAT VK60. Need help


I’m now looking to retube a BAT VK60. I know very little about the tubes in it or which ones are most important to address first... or at all.

Any VK 60 owners with re-tubeing experiences out there?

I surely would appreciate some input on what you wound up with and why...?

Thanks so very much for the time and efforts here, as I'm lost now.
blindjim

Showing 3 responses by swampwalker

swampwalker's avatar
swampwalker
5,138 posts
 
The 6c33bs are a lot cheaper than good NOS 6SN7s, thats for sure!
swampwalker's avatar
swampwalker
5,138 posts
 
Jim- There are a couple of good sellers of 6SN7s right here, who have pretty good knowledge of their typical sounds. Jsautter and Kalidelkol (not sure on teh spelling) come to mind, but there are also a couple of others. Of course Andy at Vintage Tube and Upscale Audio also.
swampwalker's avatar
swampwalker
5,138 posts
 
I thini Andy's description of the 3 NOS tubes is on the money. The mil spec 6sn7 is a VT231. The idea that the Thor could cause the tubes in the amp to fail seems to me to be nonsense, but it is true that if the BAT design runs the tubes at a higher voltage, it could cause shorter tube life and premature failure, esp with "NOS" tubes, that often turn out to be only overpriced "pulls". If you are buying NOS tubes from other than a trusted dealer and do not have a tube tester, you are really buying a pig in a poke. I found out the hard way and bought a tester.
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