Functionally I think it is. Rewire the heaters as per rockon1's post if you can't find the original tubes. Have you tried an international ebay search?
mrt, did you even bother looking before you asked here?
How about fifty of them for $49?
Yeah I looked(like I said) for 6h2p-eb.... all i see on e-bay is 6h2p-V or the EV not the EB.. are the the same as the 6h2p-eb??????
Plus I dont want tubes shipped from Russia.. LAMO!
The Russian letter 'B' is pronounced 'V'. So if it says 'EB' on a Russian tube, it's translated to EV - thus the confusion on ebay.
The Russians have another letter for the sound 'B', but that's a different story...