ineyetub 6BR5 EM80 Tuning Indicator Tube 6BR5 EM80 Tuning Indicator Tube 6br5em80$15.95 6DA5 EM81 European Tuning Indicator Tube 6DA5 EM81 European Tuning Indicator Tube 6da5em81$14.95 Triode, USA Customer Service M-F 9AM-4PM CT 1-800-774-3201 Email us Anytime: questions@triodestore.com