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AC/S

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ID = 28396
       
Country:
Great Britain (UK)
Brand: Metropolitan-Vickers (Metro-Vick, Cosmos); GB
Developer: Metropolitan-Vickers (Metro-Vick, Cosmos); GB 
Tube type:  Vacuum Pentode   RF/IF-Stage 
Identical to AC/S = AC/S_Radiorecord
Similar Tubes
Normally replaceable-slightly different:
  E442
First year 1928 Saga of the Vacuum Tube, Tyne Seite 374

Base cosmos-AC-5-pin Top contact screw type.
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1 Ampere / Indirect / Specified voltage AC/DC
Description

Story of Cosmos valves see here

 
Information source -- Collector info (Sammler)   
British Radio Valves - The Classic Years: 1926-1946   Supplement, p. 14


Just Qvigstad
gb_metro_vic_ac_s_anzeige_1929.png
AC/S: Modern Wireless Vol. X1, No. 30, June 1929
Jörg Holtzapfel

Usage in Models 1= 1928

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

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