tungsten filament

Tungsten filaments, developed in the 1900s, last longer and make a brighter light.

Why should you be able to walk into a shop and buy a tungsten filament bulb?

In order to get a very bright light, we need to increase the temperature of the tungsten filament.

Use two lamps each with a 60W tungsten filament bulb.

The lamp with a tungsten filament is indeed the only design used now, but in 1906 they were too expensive.

While the light is turned off, the value of q for the tungsten filament would be zero.

Bare tungsten filaments operated at a temperature of around 2200 C.

The lamps were incandescent lights which used a tungsten filament.

In 1909 the Mazda name was created for the tungsten filament light bulb.

The life expectancy of the tungsten filament bulb was considerably increased by this development.

The company was awarded a patent for electric bulbs with a tungsten filament in 1903.

It was not until tungsten filaments replaced carbon that a portable electric light became a reality.

For a true blackbody (which tungsten filaments are not).

They broke electric bulbs, separated the brass base from the glass, and took out the tungsten filament.

A cathode, as a thin wire of tungsten filament, runs through this arrangement.

By far the most recognized type of lighting is the incandescent light bulb using a tungsten filament.

Only Tom's was provided with a tungsten filament, which gave a glaring white pencil of light, increased by reflectors.

An improvised circuit closed, sending electric current through a short length of tungsten filament.

For these reasons, plain tungsten filaments are all but obsolete in automotive headlamp service.

A thoriated tungsten filament is connected to the electrodes by screws.

It is formed by way of an electric discharge in helium with a heated tungsten filament.

The tungsten filament outlasted all other types (especially the former carbon filaments).

Nernst lamps did not use a glowing tungsten filament.

Low power tungsten filament indicator lamps fitted to the end of fixed seating rows.

In fact, they will tend to do so at the hottest (and therefore thinnest) portions of the tungsten filament the most.