I agree with Thorman. Audiogon is a good source for tubes, just stay with the sellers that have a lot of nice feedback. You could probably find them cheaper elsewhere, but that's a good way to get a stack of old, microphonic, or just pain bad sounding tubes. Andy at Vintage Tube service does a nice job because he tests the tubes before he sends them out.
Best Source for Tubes
Hi folks. Can anyone put in me onto a good, reliable and inexpensive source for replacement tubes? Thanks.