SYLVANIA, Made in USA

Strong Pair JHS 12AT7 Valves Tubes

JHS Military Spec

Black Plates, Square Getters

Triple Mica Construction

Fully Tested on AVO VCM 163

100% Book Spec = Ia 10 - Gm 5.5

1) Ia 12.1/9.6 - Gm 6.2/5

2) Ia 10.3/9.3 - Gm 5.2/4.9

New Old Stock, Supplied in Original Boxes