PHILIPS DIAL LIGHT BULB, 15mm ENVELOPE, 6.3V 0.3A

KT61, GEC, METAL OVERCAPPED BLACK BASE, LARGE BLUE & WHITE SQUARE DECAL, EX BBC VALVE STORES, NO KEYWAY, HAMMERSMITH DECEMBER 1952 PRODUCTION

KT88, GEC, BOXED, NO PRINT,

EL84, MULLARD, NEW SHIELD, MATCHED PAIR, SIMILAR FACTORY CODE kM1 B1L1, kM1 B1L2, BLACKBURN NOVEMBER 1971 MANUFACTURE

U709, MARCONI, EZ81 WHITE PRINT, MATCHED PAIR

12SN7GT, Sylvania, US Navy, Silver Base Print 12SN7