Mullard Magic: For All Your Vintage Valve and Radio Needs!
Different envelope shapes, military devices, commercial devices
5R4GB, GENERAL ELECTRIC, GE, NOS BOXED
CV717, STC, BROWN BASE, 5 RIB CHARCOAL ANODE, FOOTSCRAY NOVEMBER 1951 PRODUCTION, 5R4G
CV717, STC, BROWN BASE, 5 RIB CHARCOAL ANODE, FOOTSCRAY APRIL 1957 PRODUCTION, 5R4G
CV717, STC, BROWN BASE, 5 RIB CHARCOAL ANODE, FOOTSCRAY JANUARY 1956 PRODUCTION, 5R4G
5R4GY, BRIMAR, 3 RIBBED PLATE, BROWN BASE WITH WHITE PRINT, CV717, 5R4G
5R4GY, ELPICO, BLACK BASE, SMOOTH CHARCOAL ANODES, GREEN PRINT, DOUBLE D GETTER, CTION
5R4GY, RCA, BROWN BASE, SMOOTH ANODE, JUNE 1949 PRODUCTION, 0-26 DATE CODE,
5R4GY, RCA, BROWN BASE, SMOOTH ANODE, JUNE 1953 PRODUCTION
AV/5R4, STC, SOLID STATE, 5R4 RECTIFIER REPLACEMENT 1960S
5R4WGA, CHATHAM ELECTRONICS, JAN-CAHG, BLACK LADDER ANODE,
5R4GYB RCA HARRISON T9 ENVELOPE