I really do need help on this please.......
The Leben site specifies 6L6 and EL34 valves as being suitable for the CS600.
Below is extracted part of a review of the Leben CS600
"For the tube-rollers, there are cathode resistor and plate switches which can be toggled in various combinations to allow for a wide array of driver tubes. You can use most of the 6L6 and EL34/6CA7 families of tubes. If you are fine with keeping the top cover off, you can tube-roll with even more variety of tubes, such as KT-88s, 350Bs, etc. (should a wad of cash fall from the sky and land on my head, I would like to try Western Electric 350Bs in Leben CS-600"
Clearly this suggests KT66, 88 and etc ! Could anybody please clarify/confirm that it would be cool and the gang to use these as alternatives.
I've been a bit high maintenance of late, clearly in need of attention . I'll back off for a bit after this !
And this is a genuine plea for help, not a backhanded way of saying "I've just bought a Leben CS600", which I have . It's the little things.....