Standard thermionic valve

Made:
1930s in England

Standard Telephones and Cables Limited thermionic valve From National Valve Museum:

The 4304CB transmitting valve has a directly heated thoriated tungsten filament. The electrodes are sealed into a glass pinch.The anode is of carbon and can dissipate 50 Watts. The high operating voltage leads to the placing of the anode connection on the top cap. The grid is moved to a top cap connection in order to allow the valve to operate at high frequency.The valve was used as a power oscillator as well as a power amplifier and in pulse mode for early 200 MHz radar.

Details

Category:
Radio Communication
Object Number:
Y1984.48.171
Materials:
glass, metal (unknown), plastic (unidentified)
type:
thermionic valve
taxonomy:
  • component - object
credit:
Gift of Dr. G. R. Airth
status:
Permanent collection

Cite this page

Rights

We encourage the use and reuse of our collection data.


Data in the title, made, maker and details fields are released under Creative Commons Zero


Descriptions and all other text content are licensed under a Creative Commons Attribution 4.0 licence

Using our data

Download

Download catalogue entry as json

Download manifest IIIF

Our records are constantly being enhanced and improved, but please note that we cannot guarantee the accuracy of any information shown on this website.