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ES350 · 07-25-2008, 01:11 PM

That looks allright to me...my quartets of Philips 7581A's glow the nicest shade of blue/violet. Nothing wrong with them or the amp...

07-25-2008, 01:11 PM	#11 (permalink)
ES350 Senior Member Join Date: Apr 2008 Posts: 213 Thanks: 0 Thanked 0 Times in 0 Posts	Re: Tube Question about blue Glow That looks allright to me...my quartets of Philips 7581A's glow the nicest shade of blue/violet. Nothing wrong with them or the amp...