Matched Quad Vintage CV6 VR135 Orange Print Valves Tubes. Military Arrow Markings on the Glass.
New Old Stock, Fully Tested & Matched on AVO VCM 163. 1 Ia 15.7 - Gm 2.9. 2 Ia 15.8 - Gm 2.9.
3 Ia 15.9 - Gm 3.1. 4 Ia 15.9 - Gm 3.