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6977

Information - Help 
ID = 19446
       
Country:
United States of America (USA)
Brand: USA - Tubes designated in the USA
Tube type:  INDICATOR, in general 
Identical to 6977 = DM160 = CV5412
Similar Tubes
Normally replaceable-slightly different:
  CV6094
Multiple differences or of other kind:
  KP-125 ; ИВ-15
First Source (s)
Jun.1957 : -- Original-techn. papers. Electronics

Filament Vf 1 Volts / If 0.03 Ampere / Direct
Description Bar indicator tube, specifically designed as indicator for transistorized computers. Blue-green bar lights when control grid is at zero potential. Intended to replace HV transistor and neon lamp combination as logic state indicating device.
50VDC at 0.5mA anode in on state; -3VDC on the grid is enough to cut-off plate current. 20,000 hours life. Subminiature tubular body, 4-pin flying leads base.
Amperex or other Philips related plants. 
Text in other languages (may differ)
Tube prices 1 Tube prices (visible for members only)
Information source -- Original prospect or advert   Electronics, June 1957, pg.65
  dm1606977.png
  6977: Valvo Spezialröhren II
Willi Ribbe
 
6977_a.jpg
6977
Emilio Ciardiello

 
6977_so_1.png
6977: rtt
Michael Schlör

 
6977_data.png
6977: valvo Taschenbuch 1973
Michael Schlör



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