Not yet, decided to listen to all the 45s together so I could decide which I like. I only have the 3 pairs so the tung sol was the last. Then the 46 and after that I'll just leave whichever sounds best in the amp for a fair while.
Do you think the 6BY5GA would sound any different from the 6BY5G Glenn? Is the voltage drop the same? The G style is surprisingly hard to find but the GA are still rather common. I need to stock up and see if I can find a pair that doesn't make that whistling sound.
Are you sure it is not the 45s making the sound?
I will look and see if I have any more 6BY5G sitting around if I do I will send them to you.
will look tonight.