Skylab
Reviewerus Prolificus
You know that if you are buying 5998's from AES that you are getting GE Pink base tubes, right? At least that is what they have on their website for $29.50 each. They are not identical to the Tung Sol's. I have a pair, but I haven't actually auditioned them yet, but the plate structure is definitely different. They are supposed to be the same tube electrically as the Tung-Sol 5998, but they are different looking both externally and internally.