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

NT98

Information - Help 
ID = 16109
       
Country:
Great Britain (UK)
Brand: Common type Great Britain tube/semicond.
Developer: GEC, General Electric Co Ltd., GENALEX; London 
Tube type:  Pulse magnetron 
Identical to NT98 = W2510 = CV1255 = NTA98 = E1189 = REL3D
Successor Tubes CV56A   CV56   NT98C   NT98A   NT98D   NT98B  

Was used by Radar
Filament Vf 6 Volts / If 1.2 Ampere / Half indirect
Description

This is the Admiralty standardized code for the early S-band magnetron E1189. First use in March 1941 on the HMS Orchis corvette. 10 kW typical peak power, 5 kW minimum at 10 cm.

Later in 1941 it originated four frequency selections, identified by A, B, C or D suffix indicating the operating frequency.

NT98 was used in the Naval radar Type 271.

Manufactured by GEC and BTH in Britain. NT98 was also manufactured overseas by manufacturers related to Bell Telephone. In Canada it was produced by Northern Electric as REL Type 3D, while in Australia it was made by Standard Telephone and Cables as NTA98.

The development of the E1189 magnetron at GEC can be read at this link.

 
Information source Taschenbuch zum Röhren-Codex 1948/49   
-- Original prospect or advert   Callick, Metres to Microwaves.

Collection of

 
nt98c_01r.jpg

 

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]
  

Data Compliance More Information