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ER2A7

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ID = 33893
       
Country:
United States of America (USA)
Brand: Raytheon Mfg. Co.; Cambridge, MA
Tube type:  Pentagrid-Converter (Heptode)   Frequency converter   Controlling (mu) 
Identical to ER2A7 = 2A7 = CV787 = Ut-2A7 = PH2A7
Similar Tubes
Other shape (e.g. bulb type):
  G-2A7-S

Base 7-Pin-Base U7A = small, old, USA Top contact with a cap
Was used by Radio/TV-reception etc.
Filament Vf 2.5 Volts / If 0.8 Ampere / Indirect / Parallel, (AC/DC)
Dimensions (WHD)
incl. pins / tip
x 116 x 38 mm / x 4.57 x 1.50 inch
Weight 39 g / 1.38 oz
 
er2a7_so.png
ER2A7: ARRL Handbook 1972
Michael Schlör

 

Usage in Models 1= 1934

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

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