My wife almost tied her tubes around my neck when I wanted to buy new ones but she forgot for a moment she already had em tied. I survived and got a new set of EL34 Ruby's (12) 2 12AX7's 2 EL84's. Of the 14 old tubes EL34's 1 had a short 2 were in the replace zone. All others were fine but they will only be for back up. Just get new tubes that MATCH and it makes a hell of a difference. If a tube tester costs more than a new set of tubes use someone elses tester. BTW why do some people knock Ruby EL34's? They sound great to me.
