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DF651

Information - Help 
ID = 3402
       
Country:
Germany
Brand: Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH
Tube type:  Vacuum Pentode 
Identical to DF651 = CK549DX = 549DX
Similar Tubes
Heater different:
  CK538DX ; DF650
First year 1955 Tube leaflet collection E.Erb Analysis by original leaflets

Base Subminiatur (wire-ends, flat) B5A
Filament Vf 0.625 Volts / If 0.01 Ampere / Direct / Battery =
Description Serienauslieferung ab 1955, Ug2=9V; Ig2=9,5µA, S=0,068mA/V; Ri=5MOhm 
Dimensions (WHD)
incl. pins / tip
7 x 20 x 5 mm / 0.28 x 0.79 x 0.20 inch
Tube prices 1 Tube prices (visible for members only)
Literature
  d_telefunken_df651_appl.png
  DF651: Akumed
Thomas Günzel
 
df651_telefunken.jpg
DF651: My tubes
Anonymous 413 Collector

 
df651_so.png
DF651: rtt
Michael Schlör

 
df651_data1.png
DF651: Funkschau Röhrendokumente
Michael Schlör


Usage in Models 1= 1953 ; 1= 1955?? ; 1= 1955

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):3


Forum contributions about this tube
DF651
Threads: 1 | Posts: 3
Hits: 3051     Replies: 2
DF651
Trev Levick
22.May.05
  1 Abmessungen (BHT)7x20x5mm - Eine sehr kleine Röhre!
Siehe Foto.

Gruß Trevor
Hans-Thomas Schmidt
22.May.05
  2 Vielen Dank, Herr Levick, die Werte wurden in das Röhrendatenblatt übernommen.

Schönen Abend noch, H.-T. Schmidt
Trev Levick
23.May.05
  3 Herr Schmidt,

danke für die Ergänzung!
Ich habe noch keine kleinere deutsche Röhre gesehen.

Gruß Trevor
 
DF651
End of forum contributions about this tube

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