Wireless World, August, 1948.

Valves Advertised:

4300A, 4304CA, 4242A, 4212E, 4270A, 4357A, 4228A, 4074A, 4282A, 4260A, 5B/250A, 5C/100A, 4052A, 4069A, 4274A, 2V/400A, 4064B, 4078A, 4222B, 4313C & G180/2M.