6C33-B vs everything else.


Ok this tube is making me wonder??? I know that BAT is running it in their tubes amps but I don't recall having the chance to hear BAT.

Can anyone tell me what the characteristics of this tube are? I am quite familliar with EL34, KT88, and 6550 output tubes so a compairison agianst one of those would be helpful.
kt_88

Showing 2 responses by tubes108

Jeff. Per your thought that the 6c33c is quite destructive when they failed in your VK60s, and therefore you would not consider another amp that uses this power tube. Certainly any type of problem is a pain in the rear and I am sorry you had a bad problem.

It seems to me it is how the circuit in your amp dealt with the tube failure that caused the destruction you experienced. I am not aware that the 6c33c exhibits any unusual characteristics such that failures with that tube would result in problems that would not occur if a different output tube had a similar failure when used in the same circuit.
I've owned amps from Quicksilver and their quality (both performance and reliability) is fantastic and they are one of the best providers of service in the industry. If you can find one in your price range, I'd explore Badboss429's suggestion.

I owned a Joules Electra amp that utilized the 6c33c tubes. These amps were designed by a true artist who knows his stuff. The tube life within this circuit was quite lengthy. The sockets were without any problem, either in corrosion or contact spring issues. In part, I assume the reliability of these amps and the longevity & freedom from the issues described by Atmasphere is due to the reasonable bias currents utilized within the Joules design.

I had a bud who owned the Atmasphere 6c33c amps and their bias requirements were double what Joule uses. He had a need to replace the sockets about yearly and had constant tube issues.