Please click your language flag. Bitte Sprachflagge klicken.


Information - Help 
ID = 45704
Brand: Tesla; Praha, Bratislava etc.
Tube type:  Transmitting Tetrode, air cooled   UHF 
Identical to RE025XM
Similar Tubes
Other shape (e.g. bulb type):
  RE025XA ; RE025XB
Normally replaceable-slightly different:
  4CX250K ; 8245
Heater different:
Multiple differences or of other kind:

Base COAXIAL in general (X..) Top contact with a cap.
Filament Vf 6 Volts / If 2.6 Ampere / Half indirect
Description Forced air cooled ceramic tetrode. 250W anode dissipation; up to 500MHz full ratings, usable up to 1500MHz. Special coaxial base: starting from bottom, heater, heater-cathode, G1, G2 and anode. 
Dimensions (WHD)
incl. pins / tip
41 x 70 x mm / 1.61 x 2.76 x inch
Weight 130 g / 4.59 oz
Information source - - Manufacturers Literature   

re025xm_sokl.png RE025XM: Catalogue TESLA from 1968year.
Josef Smitka

RE025XM: Catalogue TESLA from 1969 year.
Josef Smitka

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]