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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

  ak2_1.gif
  Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus
ak2_pp_r.jpg
Collection JR
Jacob Roschy

 
Variants
25.png
Telefunken Werkstattbuch
Wolfgang Bauer

 
ak2_spec.png
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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