+1 for both Andy and Brent J. For the price of some tubes, it’s important to know the NOS tube you get is the tube you want and ordered. I found that the tubes make a huge difference in SQ, particularly in phono stages. For my ears, and the lowest noise I run Amperex & Telefunken NOS.
I know now nothing about 845s.
The new PSvane & gold lions 12AX7s have an edge that I don’t prefer. But that’s the fun of rolling tubes. Brent J has me on hold for a pair of Tung Sol 6SN7 for my amp. I always look for military or medical grade “low noise” tubes.
On the humming noise topic, I had a “motor-boating” sound only coming thru my phono section. After LOTS of trial and error, I isolated it to RFI coming from my google mesh WAP. It was getting picked up somewhere in my TT, cartridge or cables. When I moved the WAP across the room and onto the floor, it has essentially disappeared. So don’t overlook that a possibility. Good luck!
I know now nothing about 845s.
The new PSvane & gold lions 12AX7s have an edge that I don’t prefer. But that’s the fun of rolling tubes. Brent J has me on hold for a pair of Tung Sol 6SN7 for my amp. I always look for military or medical grade “low noise” tubes.
On the humming noise topic, I had a “motor-boating” sound only coming thru my phono section. After LOTS of trial and error, I isolated it to RFI coming from my google mesh WAP. It was getting picked up somewhere in my TT, cartridge or cables. When I moved the WAP across the room and onto the floor, it has essentially disappeared. So don’t overlook that a possibility. Good luck!