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 17.5 - Gm 3.2. 2 Ia 17.3 - Gm 3.3.
3 Ia 17.5 - Gm 3.2. 4 Ia 17.7 - Gm 3.3.