Mullard Magic: For All Your Vintage Valve and Radio Needs!
12SN7GT, SYLVANIA, JAN SC966A, MATCHED PAIR, 1944 MANUFACTURE
12SN7GT, SPERRY, SPL-823431,MIL SPEC VALVE, 1956 MANUFACTURE, 12SN7
B36, MARCONI, 12SN7GT, CLEAR GLASS, METAL OVER CAPPED BASE, LARGE DECAL, ORIGINAL BOX, MAY 1949 MANUFACTURE 12SN7