Antique radios, Old Time Radios

unknown

Tube ID = 3537


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Identical to	unknown

Filament
Description	Not a certain tube, just a placeholder in the model tube lineups. Kind of "wild card". Being in a model listing it needs a reference place in the tube data base. Otherwise it would not be accepted by the system. Text in other languages (may differ)

KoBi
Konrad Birkner

Usage in Models (calculation each 25th of the month)

2= 1920?? ; 1= 1923?? ; 2= 1923? ; 3= 1923 ; 2= 1924? ; 8= 1924 ; 5= 1925?? ; 1= 1925? ; 5= 1925 ; 1= 1926?? ; 1= 1926? ; 8= 1926 ; 2= 1927?? ; 2= 1927? ; 23= 1927 ; 1= 1928?? ; 3= 1928? ; 38= 1928 ; 3= 1929?? ; 6= 1929? ; 13= 1929 ; 9= 1930?? ; 11= 1930? ; 31= 1930 ; 11= 1931? ; 23= 1931 ; 4= 1932?? ; 19= 1932? ; 52= 1932 ; 6= 1933?? ; 8= 1933? ; 13= 1933 ; 4= 1934?? ; 9= 1934? ; 7= 1934 ; 28= 1935?? ;

Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 1281

No further Information for

unknown

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