Reviving a bit of an old thread here, but about to send my power supply in for the T upgrade and am looking into tubes...
The Philips 5R4GYS has been recommended to me as a superb replacement to the stock one that comes with the upgrade, but I can't seem to find any at a...rational price point. Anyone have any leads?
Now that it's a little more widespread with adoption, maybe others have some more input on alternatives that are great as well. I saw Raytheon 5AR4, NOS Mullard 5AR4...