radiomuseum.org

 
Please click your language flag. Bitte Sprachflagge klicken.

AC/S2

Information - Help 
ID = 25903
       
Country:
Great Britain (UK)
Brand: Mazda = Valve (Tube) brand GB (see also France)
Developer: Mazda = Valve (Tube) brand GB (see also France) 
Tube type:  Screen-grid Tetrode   RF/IF-Stage 
  Ca. 1925 up to 1945 very rare. ***
Identical to AC/S2 = VT109_GPO = CV1677
Similar Tubes
Normally replaceable-slightly different:
  AC/SG

Base Europe 5-Pin (O5A, B5) Top contact with a cap
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1.1 Ampere / Indirect / Parallel, (AC/DC)
Description

Va <200. Vg2<80. Gm =3.4 High gain version of AC/SG.

 
Literature - - Manufacturers Literature   Grundig Röhren-Taschenbuch, 1948
Babani, International Radio Tube Encyclopaedia   Pages 48 & 49
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
- - Manufacturers Literature
 
ac_s2_bild1~~2.jpg
AC/S2: R.O.
Rudolf Osterkamp

 
acsg_acs2~~1.png
AC/S2: own collection
Peter den Boer


Usage in Models 1= 1931 ; 6= 1932 ; 1= 1935

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):8


You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]
  
rmXorg