para sa akin
12ax7 tubes - Telefunken
12au7 tubes - RCA "BlackPlates" and Telefunken "Smooth Plates"
now which of the two telefunkens, for me its the 12ax7.
sir akyat...singit ako...sa 12au7, so far it's the RCA blackplate...mataba tumunog...parang longganisang mataba
kimpao, superman..... thanks for the tips.
i think the Ei 12ax7 tubes on my AMX EL34 amp might be nearing extinction since one of them lights up like a bulb whenever i turn on the amp, so i'm on the lookout for a replacement..... i've also read some tube reviews mostly for guitar amps, and you're right about the Teles...... nothing short of a Mullard would be probably sound better.
but for my budget (1.5k) i'm not sure if i can go Tele, unless i get a good package deal like when hans got his Tele+RCA for "only" 3k (?)..... i read some good reviews on the JJ/Tesla current production tubes and the JAN/Philips.... i think they are near my budget, any comments on these?
for the AMX preamp, i got an instant upgrade when i changed my rectifier tube from Matsushjta 5ar4 to RCA "sexy bottle" 5u4g..... hans was kind enough to lend me his stock Hitachi 12au7 and between his/john's Hitachi and my Matsushjta, i think the Hitachi was the better tube, so congrats to the new owner of john's preamp you already have the better tubes for the preamp.
andrew seems to be testing various combinations of budget tubes on the preamps.... john's version is slightly different from hans with the Sylvania 12ax7 phono tubes.... note: hans got all-hitachi tubes and i got all matsushjta tubes.