Home:  Receiving: 'R' VALVE, BBC MARKING AND BASE, 1923

'R' VALVE, BBC MARKING AND BASE, 1923

View all Receiving

'R' VALVE, BBC MARKING AND BASE, 1923

The 'R' Valve was developed from the French hard vacuum valve of WW1 and was made in the UK from 1916 by the Marconi Osram Valve Company. Its use in new equipment declined in 1925 with the introduction of the lower power dull emitter valves.

The first ever broadcast from Savoy Hill in 1923 used these valves in the audio amplifier. This was the first UK Hard Vacuum valve to go into production, historically so important that a company in Europe started making copies for enthusiasts who wished to make early wireless sets work.

Add a memory or information about this object

A0770



2007 The Museum of Technology, The Great War and WWII
Company registered in England No. 7452160, Registered Charity No. 1140352, Accredited Museum No. 2221