Antique radios, Old Time Radios

R215A

Country:	Canada		Brand:	Northern Electric Co. Ltd.; Canada
			Tube type:	Triode, vacuum Universal

Tube ID = 25789


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Identical to	R215A = 215A = CW-1344 = 4215A = WE215A = 38015 = Wecovalve = VT-5 = CW38015 = 215A_Nissl
Similar Tubes	Other base: Wecovalve_4pin

Base	OTHER TUBEBASE in general
Was used by	Radio/TV-reception etc.
Filament	-: 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 with special base. 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 Thermionic 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.

O.F.
Otto Frosinn

KoBi
Konrad Birkner

Datenbl. R215-A Northern Electric Comp.
Otto Frosinn

Usage in Models (calculation each 25th of the month)	1= 1924 ; 2= 1925 ; 1= 1928 ;
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 4

No further Information for

R215A

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