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

4-125A

Information - Help 
ID = 21345
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Transmitting Tetrode, air cooled 
Identical to 4-125A = 4D21 = QB3/300GA = PL-4D21
Similar Tubes
Normally replaceable-slightly different:
  6155

Base Giant 5 pin medium shell B5D Top contact with a cap.
Filament Vf 5 Volts / If 6.5 Ampere / Direct
Description

5-pin jumbo base

 
Tube prices 2 Tube prices (visible for members only)
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   
  eimac_4_125a_umgebungs_plan.gif
  4-125A: Eimac Katalog 19848
Arpad Roth † 27.3.17
 
4125a_1.jpg
4-125A: K.H.Fischer
Karlheinz Fischer

 
4125a_sock.png
4-125A: Tabu Röhren-Codex, 1948
Anonymous 15 Collector

 
4125a_spec_1a.png
4-125A: Valvo,Senderöhren, 1983
Anonymous 15 Collector


from Just Qvigstad

Usage in Models 1= 1946 ; 1= 1967

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2


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