Selling a quad of Electro Harmonix 6CA7s for 25 dollars shipped via USPS priority mail.
In case you don't already know, the 6CA7 is a drop in replacement for the EL34 and is generally regarded as combining the superior bass and treble extension of the KT88 with the midrange warmth of an EL34. Anyway, I used these for less than 50 hours so they're probably not even broken in yet. In my system they had great bass but I needed the darker sound of the cryo'd ValveArts I was already using at the time.
