Mullard Magic: For All Your Vintage Valve and Radio Needs!
6SL7GT, BRIMAR, FAT BLACK BASE, ORANGE PRINT, CV569, CV1985, ECC35, VT-229, FOOTSCRAY MAY 1963 PRODUCTION 6SL7
6SL7GT, BRIMAR, FAT BLACK BASE, ORANGE PRINT, CV569, CV1985, ECC35, VT-229, FOOTSCRAY, 6SL7
6SL7GT, GE, WHITE PRINT, CHROME ANODE, SCHENECTADY NY SEPTEMBER 1954 PRODUCTION 6SL7
6SL7GT, GE, WHITE PRINT, GREY ANODE, KENTUCKY, JANUARY 1942 PRODUCTION, PRODUCTION 6SL7