radiomuseum.org

 
Please click your language flag. Bitte Sprachflagge klicken.

DEP240

Information - Help 
ID = 25928
       
Country:
Great Britain (UK)
Brand: Marconi-Osram - (Valves/Tubes); GB
Tube type:  Triode, vacuum   Power/Output 
  Ca. 1925 up to 1945 rare.
Identical to DEP240
First year Oct.1928 - - Manufacturers Literature Date of Marconi Publication No. 520A.

Base Europe 4-Pin (A, 4A, B4, since 1914)
Filament Vf 2 Volts / If 0.4 Ampere / Direct / Battery =
Description

Dull emitter super-power output triode, for use in the last stage of audio amplifying chains. Amplification factor 4; 2500 ohm impedance; 150V anode voltage with 17mA average current at 24V negative grid bias.

 
Dimensions (WHD)
incl. pins / tip
46 x 103 x mm / 1.81 x 4.06 x inch
Literature - - Manufacturers Literature   Grundig Röhren-Taschenbuch, 1948
- - Manufacturers Literature   Pamphlet 243
 
dep240.jpg
DEP240: M Hamm
Maurice Hamm

 
dep240.png
DEP240: M Hamm
Maurice Hamm

 
dep2401.png
DEP240: own collection
Peter den Boer



Forum contributions about this tube
DEP240
Threads: 1 | Posts: 2
Hits: 1665     Replies: 1
DEP240 (DEP240)
Maurice Hamm
29.Dec.06
  1 Habe dieses valve in eines zelbstbouw radio
Folgendes valves: HL210, DEP240 und PM2.
DEP240 gar kein info Nur ein bemerkung das es ungefer ein B205 handelt.

Nach mailing zu einer english man had er die folgende bemerkung gemacht.

P is Power OUTPUT Valve
nummer 240 = 2V Filiament 0,4 Amps
Anode 120-150V

Text auf glass:
Genau:  D.Ë.P. 240  (umlaut auf E)
Made in England
Patented
Marconi Valve
mit logo: BVA British Radio Valve
Konrad Birkner † 12.08.2014
22.Jun.08
  2

P doesn't necessarily mean Power (e.g. PM1 or PM12 or PM3 or PM5X)

DE often stands for Dull Emitter

B205 would be for a P240

 

 
DEP240
End of forum contributions about this tube

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