Please click your language flag. Bitte Sprachflagge klicken.


Information - Help 
ID = 15425
United States of America (USA)
Developer: General Electric Co. (GE); Bridgeport CT, Syracuse NY 
Tube type:  Triode, vacuum   Power/Output 
Identical to 845 = 38145 = CV735 = C845 = UV845 = E745 = 545 = SE3945 = VT-43
Similar Tubes
Normally replaceable-slightly different:
Successor Tubes ER845  

Base Jumbo 4-pin bayonet (1918) (Codex=Byy)
Was used by Transmittertube (Radio)
Filament Vf 10 Volts / If 3.25 Ampere / Direct / Specified voltage AC/DC

Transmitting triode, graphite anode, 75W. Also used in audio, class A or AB1, amplifier circuits. 4-pin jumbo bayonet base.

Dimensions (WHD)
incl. pins / tip
x 210 x 64 mm / x 8.27 x 2.52 inch
Tube prices 4 Tube prices (visible for members only)
Information source Tube Lore (II)   p. 78
Tube Lore (I)   
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49

845: RCA Amateur Transmitting Types 1934
Götz Linss † 27.06.21

vt4c_8.png 845: Manufacturer's Literature
Emilio Ciardiello

More ...

Just Qvigstad
845: RCA de forest amateur 1934
Miguel Angel Trujillo-Rodriguez

More ...
Usage in Models 1= 1932? ; 1= 1933? ; 1= 1937? ; 1= 1942??

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):4

Collection of



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]