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O4A657

Information - Help 
ID = 67086
       
Country:
Germany
Brand: Werk für Fernmeldewesen (OSW, HF, WF) Berlin, VEB, RFT (Ostd.)
Tube type:  Solid-State-Diode 
Identical to O4A657
Similar Tubes
Normally replaceable-slightly different:
  O4A656

Base Wires
Filament Solid State
Description

4 Dioden, schaltbar als Ringmischer, 6 Pins; Manufactured by WF (DDR)

 
Weight 2 g / 0.07 oz
Information source Radio und Fernsehen (DDR)   1961, Nr.19
 
04a_657_wf.jpg
O4A657: Eigene Sammlung
Egon Strampe

More ...
 
wf_04a657_anschluss.png
O4A657: radio u. fernsehen 19/1961
Wolfgang Eckardt

 


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