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6SL7_DDR

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ID = 61267
       
Country:
Germany
Brand: Werk für Fernmeldewesen (OSW, HF, WF) Berlin, VEB, RFT (Ostd.)
Tube type:  Double Triode   Audio Frequency 
Identical to 6SL7_DDR = 6Н9М
Similar Tubes
Normally replaceable-slightly different:
  6SL7GT
Other class quality (otherwise equal):
  6SL7
First Source (s)
02.Jul.1941 : Electron Tube Registration List

Base Octal (Int.Octal, IO) K8A, USA 1935
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect / Specified voltage AND current AC/DC
Description

A metal version 6SL7 of this tube did never exist. There is no pin available to ground the envelope, see under 6SL7GT. Since you often see the short name 6SL7 we also use it here.

 
Text in other languages (may differ)
Information source Taschenbuch zum Röhren-Codex 1948/49   

sockel_6sl7_ddr.png 6SL7_DDR: Originales Datenblatt
Dennis Jaroschek


Just Qvigstad

Collection of

 
6sl7_ddr_glas_veb_rft_werk_604_1954.jpg

6SL7_DDR
 

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