Tubes for BAT VK60. Need help

Hi Jim ! Hope all is going well for you! Before my now 150SE's :), I used red base RCA 6sn7's in my VK60. The front two 6sn7's are the input and make the greatest change on the sound.

The 63CCb's also seem to need to be replaced yearly in my system. More dynamics and jump every time I replace them.

Regarding the 6sn7's, They need to be matched and the matched pairs put in spots 1 & 4, then 2 & 5, and finally 3 and 6. Or course these are 6 tubes in the second row. #1 from left to right in my example here.

The RCA's seemed to be smoother on the top end, a little warmer than the stock sovteks.

Also, using 400 - 600 grit sand paper, sanding the tube pins, then using contact cleaner in the tube sockets and the tube pins to me is a big help.

Good luck

thanks john
Talking to BAT today I was told one thing of import... look to get 6SN7s with at least 600v ratings... during start up that is the applied voltage ... if that is not the ratings things will wear out sooner or not work properly.

They didn't say anything about the 6c33b's... except they cost a lot. I'm not far from Cuba.. maybe I'll slip over there and find a Mig.

The 6c33bs are a lot cheaper than good NOS 6SN7s, thats for sure!

swampwalker
I got all RCA in the Thor.. NOS. 12AT & 12AX... very nice.

Are the or is there some amalgamation of info on the types and their related sounds, akin to Joe's tube lore review?

Thanks much