And another contender among 6AS7/5998/6080 tubes. This time it’s 2399, produced by Tung-Sol, but practically always branded by Chatham, the sound… well, the sound is exactly like 5998, which is to say FANTASTIC! The major constructional difference was the grid rods. I haven’t ever seen 5998 or even 421A with copper rods, but this beauty had them shining through the plates. For the rest, read Tung-Sol 5998 HIGHLY RECOMMENDED
And another contender among 6AS7/5998/6080 tubes. This time it’s 2399, produced by Tung-Sol, but practically always branded by Chatham, the sound… well, the sound is exactly like 5998, which is to say FANTASTIC! The major constructional difference was the grid rods. I haven’t ever seen 5998 or even 421A with copper rods, but this beauty had them shining through the plates. For the rest, read Tung-Sol 5998 HIGHLY RECOMMENDED