6 Vintage RCA Assorted Label 5Y3 Rectifier Tubes. Satisfaction Guaranteed.
Made in USA: RCA, Tung-Sol, & Stromberg-Carlson (Made by RCA)
Tested on Precision Apparatus Model 10-12
Tube#1 = 71/74, Tube#2 = 70/75, Tube#3 = 69/73, Tube#4 = 63/67
Tube#5 = 60/64, Tube#6 = 56/58; where the minimum good reading is 54.
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