Please click your language flag. Bitte Sprachflagge klicken.


Information - Help 
ID = 2653
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 rare.
Identical to 215A = Wecovalve = CW1344 = VT-5 = CW-1344 = CW-38015 = R215A = OR1 = D-98677 = 215A_Nissl = D-80050 = Wecovalve_A = A_Wecovalve = 4215A = WE215A = 38015
Similar Tubes
Normally replaceable-slightly different:
  239A ; H125A
Other base:
  4215AB ; 4215_AB ; Wecovalve_4pin
Other base and data slightly different:
  4001_AB ; B_Wecovalve
First year 1919 Saga of the Vacuum Tube, Tyne page 371
First Source (s)
1920 : Radios von gestern, 3. Auflage page 212

Base Peanut (WECO 1919/1920)
Was used by Radio/TV-reception etc.
Filament Vf 1.4 Volts / If 0.25 Ampere / Direct / Battery =

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.

The earliest type of 215A tube had a bakelite 4 contact base which was 16 mm diameter and had a metal locking pin on the side, with the bulb diameter being 13 mm diameter. in 1922 the bulb size was increased to 16 mm diameter. Various methods of supporting the element structure were adopted over the tubes' economic life. In later tubes, the locking pin was also bakelite and some tubes had magnesium flashing.

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 Thermionic Tube and its Applications" in 1920. (EE)

The peanut-tube was also produced in Canada by Northern Electric.
In UK ST&C (Standard Telephone & Cables, London) has produced the 215A as 4215A (with adapter to B4 socket) and as 4215AB (with B4 base) to fit European standard socket. Tyne, p.370.

Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
x 60 x 16 mm / x 2.36 x 0.63 inch
Weight 10 g / 0.35 oz
Tube prices 17 Tube prices (visible for members only)
Information source -- Original-techn. papers.   
Taschenbuch zum Röhren-Codex 1948/49   
Saga of the Vacuum Tube, Tyne

215a_sockel.png 215A: nach Western Electric 1933
Robert Schmalstieg

Just Qvigstad
215A: KoBi
Konrad Birkner † 12.08.2014

More ...
Usage in Models 1= 1922?? ; 1= 1922? ; 2= 1922 ; 2= 1923? ; 9= 1923 ; 2= 1924? ; 2= 1924 ; 1= 1925?? ; 5= 1925? ; 4= 1925 ; 2= 1926? ; 1= 1927 ; 1= 1928

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):33

Collection of



You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]