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D7-221GH

Information - Help 
ID = 31809
       
Country:
Germany
Brand:
Tube type:  Oscilloscope CRT, picture tube   Indication 
Identical to D7-221GH
Similar Tubes
Heater different:
  D7-220GH

Base SPECIAL TUBEBASE in general
Was used by Technology / Measurement
Filament Vf 6.3 Volts / If 0.095 Ampere / Indirect / Parallel, (AC/DC)
Description

Wie D7-220GH, jedoch mit Sparheizung.

 
Dimensions (WHD)
incl. pins / tip
72 x 49 x 225 mm / 2.83 x 1.93 x 8.86 inch
Weight 350 g / 12.35 oz
 
sockel_d7_221gh.png
D7-221GH: Originalunterlagen
Helmut Post

 
valvo_d7221gh_data.png
D7-221GH: Valvo Handbuch 1976/77
Georg Richter


Usage in Models 1= 1979?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1

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