CJ has very particular taste in tubes. Personally, I'd rather try something with a little less bite. Most of the reputable tube dealers out there have great tubes for the CJ. Try: tubesandmore.com for NOS usa tubes, upscaleaudio.com, echohifi.com for quality tubes. Very pricey but reputable tubes would be from tubeworld.com or tubeman.com
YES, you should replace all output tubes together. Otherwise, you will have a variety of problems from unbalanced sound to greatly reducing the life of the new tubes while they compensate for the old ones. Get your tubes tested first?
YES, you should replace all output tubes together. Otherwise, you will have a variety of problems from unbalanced sound to greatly reducing the life of the new tubes while they compensate for the old ones. Get your tubes tested first?