NOS Tube Recommendation for Quicksilver Phono Pre Amp

In my Phono Pre I run GE 5751 Black Plates - Triple Mica’s instead of 12AX7’s and LOVE THEM… The 5751’s make for a great phono pre tube, might want to consider over a 12AX7.

I also run a set of RCA 5751 Triple Mica Black Plates in my DAC and they do a great job of giving it a more of an analog sound than other tubes I’ve tried.(Mullard Reissues, Sovtek LPS’s, JJ’s, Pisvane’s)

Something to consider…Could also be a mismatch of synergy with your system based upon your cartridge not liking your phono pre or vise versa… Although the Nagaoka MP-500 is an awesome cart !!!  The 200 is my next cart ! 

Quick follow-up: were those Gold Lyons you put into your Rogue NOS or new run?

Brand new production but they are doing really good things at Gold Lyon. I buy my tubes from Upscale or the original equipment manufacturer. My Gold Lyons came from Upscale. Not really cheap nowadays but I been very satisfied by the 4 different Gold Lyon tubes I have bought.

@yogiboy - yep, sure did. 

@cey - great thought... text has been sent!

@russ69 - good to know there are high quality new production tubes out there as an option; the NOS tubes are getting rarer and WAYY too expensive!

@skiznfliz - you're the second person to suggest subbing in 5751s for the 12AX7s and I'm intrigued. I will definitely experiment with this!! Also, I started with the MP-200 and it is an AMAZING cart. It is definitely the sweet spot on the graph of performance vs cost. Upgrading to the MP-500 (before I started running the QS phono stage) was the best sound I've ever gotten out of my system. I was MC cart curious, but now I'm most likely MP-500 for life!!

Finally, if you want to save SERIOUS $$$, order your Nag direct from Japan (https://www.cdjapan.co.jp/product/NEONAG-MP-200). I bought my mp-500 this way and had zero issues. 

When I needed to replace the tubes in my Phono Preamp, I called the manufacturer, Zesto.  Fortunately, they are a small to mid-sized manufacture and the owner/designer/salesman, George, is a wonderful guy who loves to speak with audiophiles.  

He told me that he listened to many new and several NOS sets of tubes when voicing my Andros 1.2.  His choice for the 'Best Sounding' tube was current production (and inexpensive) JJs gold.

You may want to contact your gear's manufacturer... like George at Zesto, they probably have done their homework!

@ larryi, thanks for the information on Tele-fakes. Perhaps this is why so many folks are reporting that modern-production tubes, of various brands, sound as-good or better-than NOS tubes.

@skiznfliz & @crawfishdaddi 5751 are not a drop-in substitute for 12AX7--thats circuit-dependent, and a phono circuit theyre almost never a substifute for 12AX7. quicksilver will tell you if 5751 can sub for 12AX7 in their phono stage.