Do you have a recommendation for which 6350 to purchase? At tube world they're saying Sylvania black plate first, then GE then RCA.
Any suggestions on which particular 6350 and where to buy appreciated!
Also, have you compared the 6350 to the Mulllards or RCA Clear Tops? Many thanks, Dogmatrix!
My research concurs with Tube World but they are talking about a completely different application to the Wa7tp . My tubes are Sylvania branded RCA and I am happy with them . Were I looking to buy now I would probably go for the nos pair of GE five stars on Ebay . Early Sylvania are on my hunt list but are proving difficult to find .
Having a quick dig through the tube box to refresh memory , I found
Mullard CV4003 "box plate" I have the domestic M8136 version , certainly one of the best all rounders great midrange
RCA 12au7 "clear top" I have a 1959 pair , excellent clarity and detail
A couple of exotics that I thought bested the Mullard and RCA
Mazda 12au7 silver slotted plates , wide open sound stage and amazing detail
Ten 12au7 from Japan , super lush classic tube presentation with solid bass
My favourites of the easier to find affordable tubes
GE Mobile Radio 6680 , good at everything
CBS Hytron JHY-5814a , found a nos mint pair from 1956 gave the best performance from the Wa7 overall powerful clear and open
6350 beats them all however , I think it is just a better rectifier the presentation is more powerful and at the same time effortless . Like my old Wa7 had a restrictor on it the 6350 opens everything up to full throttle