Two Excellent 12BA6 Tubes. Strong EM > Long Life. GM Takes Precedence Over EM. Tube #2: GM[%]: 93 ,E M[%]: 103. Strong GM > Powerful Tubes. Fully Vetted Tubes. Tube #1: GM[%]: 90 ,E M[%]: 96. Top “D” Getters Value-Added Tubes.
Item Tag: 12BA6
Tung-Sol 12BA6 radio tube,tested strong!,HF93,AA5,pentode,gray plate
This tube tested well above new tube specs.