I agree, don't buy any of the NOS tubes Woo sells! They are all junk!. For the Woo WA2 there is only 1 option. Siemens CCA (or E88CC). Get the 1960's grey shield A frame. Than get either the GEC 6AS7G or Western Electric 421A. Anything else is less than the best so like you said...why buy NOS twice!?! OH and I have no idea how fat your wallet is but you could also go for some Telefunken CCA. Those are $1000 each though for new ones.
5/22/15 at 2:55pm