A large mercury based valve from the former Â鶹Éç Borough Hill site which opened in 1925 in DaventryThis is a large water-cooled valve from the former Â鶹Éç Borough Hill site which opened in Daventry in 1925 with the first 'long wave' National Broadcasting Station known as 5XX. The radio announcement of 'Daventry Calling' was made at the opening and became well known across the world. Daventry was chosen for the site as it was the point of maximum contact with the land mass of England and Wales. In 1932, the 'short wave' Empire Service commenced broadcasting later developing into the Â鶹Éç World Service. The station was also instrumental in the development of Radar and the 'G' system for bomber command navigation and homing device during WW2. The Â鶹Éç final amplifier valve illustrates the importance of radio and other radio systems that have had global resonance.
Â鶹Éç final amplifier valve
Contributed by Daventry Town Council Museum
Most of the content on A History of the World is created by the contributors, who are the museums and members of the public. The views expressed are theirs and unless specifically stated are not those of the Â鶹Éç or the British Museum. The Â鶹Éç is not responsible for the content of any external sites referenced. In the event that you consider anything on this page to be in breach of the site’s House Rules please Flag This Object.
About this object
Click a button to explore other objects in the timeline
- Location
- Culture
- Period
- Theme
- Size
-
- H:
- 135cm
- W:
- 30.5cm
- D:
- 25.5cm
- Colour
- Material
View more objects from people in Northamptonshire.
Find out more
Podcast
Highlights from the collection
Â鶹Éç iD
Â鶹Éç navigation
Â鶹Éç links
Â鶹Éç © 2014 The Â鶹Éç is not responsible for the content of external sites. Read more.
This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.
Comments
It's not a mercury valve but a vacuum triode.