Antique radios, Old Time Radios

AK2

Country:	Europe		Brand:	Common type Europe
			Tube type:	OCTODE Frequency converter Controlling (mu)

Tube ID = 608


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Identical to	AK2 = 4M1 = TAK2 = TK2 = WE32 = NMO51
Similar Tubes	Normally replaceable-slightly different: A4GDR2 Heater different: CK1; EK1 Other base: AK1; VO4
First Series	Mar.1935 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)	Mar.1935 : Philips Bulletin
Predecessor Tubes	AK1
Successor Tubes	1936 EK2

Base	Europe side contact base P (P8A) (Codex=Seo)
Was used by	Radio/TV-reception etc.
Filament	Vf 4 Volts / If: 0.65 Ampere / -: Indirect / -: Parallel, (AC/DC) /
Tube prices	2 Tube prices (visible for members only)
Literature	Taschenbuch zum Röhren-Codex 1948/49 Design = Philips


	Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse Karel De Reus

Collection JR
Jacob Roschy

Variants

Telefunken Werkstattbuch
Wolfgang Bauer

RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector

Usage in Models (calculation each 25th of the month)	3= 1935?? ; 13= 1935? ; 151= 1935 ; 12= 1936?? ; 30= 1936? ; 301= 1936 ; 1= 1937?? ; 22= 1937? ; 150= 1937 ; 7= 1938?? ; 17= 1938? ; 66= 1938 ; 5= 1939? ; 10= 1939 ; 2= 1940 ; 1= 1947 ; 1= 1948 ; 1= 1950?? ;
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 793

Variants
PH Paul Heussner	AK2*B7 AK2 with British B7 (or M7A) base 21.Mar.2006 Jacob Roschy

Further Information for

AK2

AK2 (AK2) (22.07.2007) Reinhard Hanschke	Clicks: 444 Replies: 0
Neupreis 1938: 59,00 FFR Lit.: Catalog der Firma Manufrance von 1938

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AK2

Variants

AK2*B7

AK2