British Valve Association - Wikipedia, the free encyclopedia
British Valve Association. From Wikipedia, the free encyclopedia. Jump to: ... The British Valve Association (BVA) was a cartel of valve manufacturers in the ...
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Mullard - Wikipedia, the free encyclopedia
In 1928 the company introduced the first pentode valve to the British market. ... British Valve Association [edit] References ^ Mullard Award [edit] External links ...
en.wikipedia.org

Technical reference book on valves for control of fluids. [WorldCat.org]
... this at a library near you! -- Author: [British Valve Manufacturers' Association. ... London, British Valve Manufacturers' Association; label: Published on ...
www.worldcat.org

.Valve manufacturers listings from Valveweb
Shnaghai valve factory - Shanghai, China Fax: 011-86-216-403-3422 ... British Valve & Actuator Manufacturers' Association Ltd. listing of members ...
www.valveweb.com

Pipe Lines and Valve Standards
BSi - British Standard Valves. An overview of BSi - British Standard institute valve standards ... specifications from JAS - the Japanese Standards Association ...
www.engineeringtoolbox.com

Foseco Metals North America - Information Services
... Association. CEIR - European Committee for the Valve Industry ... British Valve and Actuator Manufacturers' Association Institution of Mining and Metallurgy ...
www.fosecomet.com

Metals Trade Associations
Global trade associations, ... British Columbia Sheet Metal Association (SMACNA-BC) ... British Valve & Actuator Manufacturers' Association (BVAMA) ...
metals.about.com

Steel Technology - Organisations - United Kingdom
Steel Technology Associations Directory - United Kingdom - associations, institutes, societies and ... British Valve and Actuator Manufacturers' ...
www.steel-technology.com

Hydrocarbons Technology - Organisations - United Kingdom
Association of British Independent Oil Companies (BRINDEX) ... British Valve and Actuator Manufacturers' Association. The McLaren Building, 35 Dale End ...
www.hydrocarbons-technology.com

newwhatsnew
British Valve and Actuator Manufacturers' Association ('BVAMA') - http://www.bavma.org.uk ... The association's aims are: to provide valve and actuator ...
www.lexisnexis.com

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The British Valve Association (BVA) was a cartel of vacuum tube manufacturers in the United Kingdom of Great Britain and Northern Ireland (UK) that was designed to protect their interests from foreign competition. This cartel dictated (among other things), the price of valves (tubes) and how they were numbered (supposedly designed to make it difficult to identify American equivalents, which were typically half the price in the United States of America ); however USA types manufactured in the UK by companies such as Brimar sold at the same price as their UK counterparts due to the BVA's insistence. All manufactures eventually published their own lists of 'equivalents' between their own valves and those of other manufacturers including American types, so cross-referencing became easy, in the UK at least.

The BVA dictated that no more than one electrode structure could be contained within one envelope. This latter point was because the BVA levied a charge of initially £1 per valveholder, to cover royalties on any of its members' patent rights. Pressure from set makers for multi-structure valves to overcome the BVA's edict lead to British and European manufacturers introducing many multi-structure valves and these eventually became the norm.

The British radio set makers were now able to adopt multi-structure valve designs. One German manufacturer produced a multi-structure valve that contained not only all the electrode structures for a complete radio receiver, but many of the passive components as well.