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VT-5

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ID = 25598
       
Country:
United States of America (USA)
Brand: Western Electric Company Inc.; New York (NY)
Developer: Western Electric Company Inc.; New York (NY) 
Tube type:  Triode, vacuum   Universal 
  <1925 very rare. ***
Identical to VT-5 = 4215A = WE215A = 38015 = Wecovalve = CW1344 = 215A = CW-1344 = CW-38015 = R215A = 215A_Nissl = G125A = D-80050
Similar Tubes
Other base:
  Wecovalve_4pin
First year 1919 Saga of the Vacuumtube, Tyne page 371 - together with 215A

Base Peanut (WECO 1919/1920)
Was used by Military and/or Government
Filament Vf 1 Volts / If 0.25 Ampere / Direct / Battery =
Description

Hendrik Johannes van der Bijl (WECO, USA) developed this first WECO tube. It is also called peanut-tube for it's very small size. As Type N it has been finished in 1919 and was on market as 215A in the early 20ies - for nearly a decade.

H.J. van der Bijl deducted the fundamental functional relationships of triodes and by that won a post at the Western Electric Company (WECO) as Senior Research Phyicist until the publication of the book "Theory of the Tnermionic Tube and its Applications" in 1920. (EE)

The peanut-tube was also produced in Canada and ST&C (Standard Telephone & Cables, London) has produced the 215A as 4215A and as 4215AB with standard european socket.

 
Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
16 x 62 x 16 mm / 0.63 x 2.44 x 0.63 inch
Weight 10 g / 0.35 oz
Tube prices 4 Tube prices (visible for members only)
Literature -- Original-techn. papers.   
Taschenbuch zum Röhren-Codex 1948/49   
 
vt-5westernelectric_1_klein.jpg
VT-5
Geri Meier

 
wecosockel~~2.gif
VT-5: KoBi
Konrad Birkner † 12.08.2014

 
vt5data.png
VT-5: own collection
Peter den Boer


Usage in Models 1= 1928

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1


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