TAKE NOTE: You get 8 of these (6SN7) teflon rings for the price of 1 Herbies Hal-O 27. The guy will mix-and-match, too, so you can get 6SN7 and 6AS7 damping rings in a single shipment.
With Herbies, your looking at at least $15 for a single 6SN7 damper and about $25 for a single 6AS7 damper. IME, the Herbies 6AS7 Hal-O often loses its grip on the 6AS7 as well. : )
Yeah I see that now. I didn't fully read the auction. Just looked at pictures + price.