Please click your language flag. Bitte Sprachflagge klicken.


Information - Help 
ID = 27524
Great Britain (UK)
Brand: Standard Telephones and Cables Ltd. (STC); London, Foots Cray
Tube type:  Beam Power Tube   beam power 
Identical to 5B/254M = CV428
Similar Tubes
Different connections:
  5B/254G ; 5B/255M
Multiple differences or of other kind:
  5B/257M ; 5B/258M ; CV2347

Base Loctal-8, B8G (Sylvania, 1938)
Filament Vf 6.3 Volts / If 0.9 Ampere / Indirect / Parallel, (AC/DC)
Description This is one of a range of reliable beam power tubes from STC. The 5B/254G, 5B/254M (CV428), 5B/255M (CV391), 5B/256M (CV499), 5B/257M (CV2220), 5B/258M (CV2347), were developed from the 5B/250A (807)with similar characteristics to the 807. The range comprises single and double-ended and wire terminated versions and were widely used in military and civilian equipments for both audio and radio frequency applications up to 125 MHz.
Total anode and screen dissipation <25W.
Power outputs from a pair at 60 MHz class C can achieve 40W with anode voltages of 600. At audio frequencies a pair in class AB2 can achieve 80W rms. 
Information source -- Original-techn. papers.   
5B/254M: My tubes
Anonymous 413 Collector

5B/254M: Datenblatt
Wolfgang Bauer

5B/254M: Brimar Radio Valves and Teletube Manual No.7
Anonymous 1038 Collector

from Just Qvigstad

Documents about this component
  Manufacturer's Data Sheets 563 KB

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]