VALVES ARE FAR FROM DEAD
Was the headline 50 years ago in Electronics Weekly's edition of May 24th 1961.
The story opens:
'The valve is far from dead. It may have shed some of its more routine duties, which have been taken up by the transistor, but new valves are to be seen in plenty.
Especially is this true of the industrial market, where many new and improved valve types are to be seen.
The demand for quick-heating valves for transmitters is catered for by a range of four types using special cathodes.
These new cathodes reach full temperature within one second from switch-on.'