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1FD9

Information - Help 
ID = 3861
       
Country:
Great Britain (UK)
Brand: Mazda = Valve (Tube) brand GB (see also France)
Tube type:  Diode-Pentode   Audio Frequency 
Identical to 1FD9 = ZD17 = DAF91
Base Miniatur-7-Pin-Base B7G, USA 1940
Filament Vf 1.4 Volts / If 0.05 Ampere / Direct / Battery =
Description Mazda 
Information source - - Manufacturers Literature   
1fd9_so.png 1FD9: rtt
Anonymous 10 Collector

Just Qvigstad 		1fd9data.png
1FD9: own collection
Peter den Boer
Usage in Models 1= 1947 ; 2= 1949 ; 4= 1950 ; 3= 1951 ; 2= 1952 ; 2= 1953 ; 1= 1954?? ; 1= 1954 ; 1= 1956?? ; 1= 1956 ; 1= 9999
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):19

Collection of

Collection of a member from FIN
Robert Gillespie (USA)
Martin Steyer (D)
 
1fd9.jpg

1FD9
 
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