Mullard Magic: For All Your Vintage Valve and Radio Needs!
6J5G, BRIMAR, ORANGE BASE PRINT, MARCH 1947 PRODUCTION
6J5G, FERRANTI, 1950S PRODUCTION
6J5G, OSRAM, HAMMERSMITH, POSTWAR, APRIL 1948 PRODUCTION
6J5GT, BRIMAR, METAL BAND BASE, CLEAR GLASS, RED BASE PRINT, JUNE 1953, BRIMSDOWN MANUFACTURE
6J5GT, MATCHED PAIR, NATIONAL UNION, ROUND CHARCOAL ANODE, MAY 1943 DATE CODE