#Newteacher95 rec tube upgrade#

I was also recommended by rodmann99999 to try the GZ34. Of course there are pros and cons of purchasing from Kevin and Internationally.

There are a few international sellers that have them. They have since increased in price over time, and currently run $110.00 - $115.00 each. I liked the tube so well, I purchased NOS spares thru E-Bay for a considerable savings. I bought the Phillips from Upscale at the time for $40.00 Ea. I would say the improvement was significant. I replaced the stock rectifier tubes in both my Primaluna P元 and PL8 I would welcome the opinions of those with more experience and finely tuned ears.

I'm pretty new to the tube game, but learning fast. In all probability I'll find myself buying & trying both and selling whatever comes in 2nd place. PrimaLuna / Upscale Audio have given great recommendations for the Phillips 5R4GYS in my preamp. Further research turned up a couple of great reviews for the tube in other amplifier and preamp applications.

#Newteacher95 rec tube upgrade#

I was hooked on the SE 274B when I saw that Woo Audio was offering the 274B as an upgrade to their WA6 headphone amplifier. The maximum current capability for Sophia Electric 274B mesh plate tube is 90ma, suitable for tube pre-amp. Please consult to your amplifier maker or refer to a tube manual. It would not be a problem with common choke input. To fully utilize its benefits, it may require first stage capacitor (capacitor input) to be less than 10MFD, or would shorten the 274B life span (very much like smoking is bad for your health). The indirect heating 5AR4 may turn on slower, however, people who buy 274B is for its superior sonic performance. While allegedly pin compatible, I understand the life of the rectifier might run short. I am contemplating switching the OEM 5AR4 rectifiers with a pair of mesh plate 274B's from Sophia Electric. I've achieved some very nice results tube rolling some of the other components I own(ed). (not the new 'premium' preamp, the original Dialogue Three) It's a fantastic unit and sounds incredible. I have recently acquired a PrimaLuna Dialogue Three preamp.