@Nathan. I could afford the Tung Sol 5998 and a Mullard CV4003, but I saw the NOS/NIB, Jan, and Chatham 5998s. What are those? which one is best? which one should I get?
And the "Russian bypass caps for the 100uf", can you please give me specific code name Or it would be nice if you you me a link? I am not clear about this. And if I have those caps, where do I solder on (terminal #?)? Thanks for your help.