Mullard Magic: For All Your Vintage Valve and Radio Needs!
U50, MARCONI OSRAM, BLACK BASE, HAMMERSMITH 1949 PRODUCTION,
U50, MARCONI, BROWN BASE, JG, HAMMERSMITH JULY 1953 PRODUCTION,
U50, OSRAM, BLACK BASE, HAMMERSMITH 1950 PRODUCTION,
5Y4G, HYTRON, WHITE BOX
5Y4G, NATIONAL UNION, WHITE BOX
5Y4G, RAYTHEON, WHITE BOX