5R4GY RCA Valve Tube NOS (V171) | Vintage Electronics
5R4GY STC B.V.A BRIMAR NOS MADE IN ENGLAND 4274B. substitution 300B. integer . tube etc. 5U4G*5R4GY*5R4WGA*5Z3P interchangeable : Real Yahoo auction salling
5R4GYA GENERAL ELECTRIC CV517 5R4GY 5R4 RECTIFIER VALVE 100% OK