radiomuseum.org
Please click your language flag. Bitte Sprachflagge klicken.

15E

Information - Help 
ID = 9620
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Transmitting Triode, air cooled   UHF 
Identical to 15E = 4C30 = 8023 = 3-15A3 = CV933
Successor Tubes 15R  

Base SPECIAL TUBEBASE in general (Codex=sp) Sidecontact and top contact.
Was used by Radar
Filament Vf 5 Volts / If 4 Ampere / Direct
Description

UHF transmitting triode, mu 25, 20W plate dissipation. Thoriated tungsten filamentary cathode. Used as oscillator for frequencies up to 500MHz, also in ring oscillator circuits.

Two were used in the ASB-1 transmitter, 1941, giving 5 kW pulses at 515 MHz. Four used in the ASB-3 transmitter, 1942, generating 15 kW pulses. Six in the ASB-7 transmitter, 1943, giving 50 kW pulses.

15E was also considered one of the best noise source when operated as controlled temperature diode. MIT Radiation Lab Series, Microwave Receivers by S. N. Van Voorhis.

 
Tube prices 1 Tube prices (visible for members only)
Information source Taschenbuch zum Röhren-Codex 1948/49   
Tube Lore (I)   
  scanimage001.png
  15E: TM11-467 Radar System Fundamentals
Emilio Ciardiello
 
15e_b_enh.jpg
15E: Private collection
Emilio Ciardiello

More ...
 
15e_sock.png
15E: Tabu Röhren-Codex, 1948
Anonymous 15 Collector

More ...
 


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