US1130042A - High-current-output audion. - Google Patents

Description

H. J. VAN DER BIJL &. A. MoL. NIGOLSON. I

HIGH GURRENT OUTPUT AUDION. APPLICATION FILED JUNE 6', 1914.

1,1 39,042, Patented Mar. 2, 1915.

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To all whom it may concern:

Be it known that we, Hnmmm JOHA-NNES VAN DER BIJL and ALEXANDER MCLEAN N10- ons'on, subjectsof the King of Great Britain, residing at-New York, in the county of New York andStateof New York, and at Tarrytown, in the county of Westchester and State of New York, respectively, have invented certain new and useful Improvements in High-Current-Output Audions, of which the following is a full, clear, concise, and exact description.

This invention relates to audions having a high current output and its object is to increase the efliciency of such audions.

In audions the closeness of the input electrode and filament to each other is conducive to efliciency of operation. Furthermore, the distance of the output electrode from the filament and the amount of obstruction the input electrode ofiers between the filament and output electrode, are factors having a bearing on the current output of the audion.

The present invention is concerned more particularly with the construction and relative arrangement of the input electrode, filament-and output electrode for the purpose of securing the maximum efliciency. In accordance with this invention the input electrode and filament are placed side by side facing the output electrode, said input electrode and filament preferably being arranged in a common plane parallel to the plane of the output electrode.

The invention may be more readily under stood by reference to the accompanying drawings, in which- Figures 1 and 2 are perspective views of two diflerent embodiments of the invention.

Like reference characters refer to like parts in both figures of the drawings.

Referring first to Fig. 1, the input electrode is shown as consisting of one or more rectangular plates or strips 1, 1, two of such plates being shown in the drawings, electrically connected together and having their adjacent side edges slightly spaced apart and parallel to each other. Lying between said parallel side edges is the. filament 2. The filament and the input electrode are The output electrode preferably consists, as

Specification of Letters latent.

' flown, NEW YORK, ASSIGNORS 'ro wnsritnn memo COMPANY,

Patented'Mar. 2, 1915.

Application filed June 6, 1914. Serial No. 843,501.

shown, of a air of electrically connected rectangular p ates '3, 3 located upon opposite sides'of the plane of said filament and input electrode-and parallel thereto. With such structure and arrangement of theparts, the nput electrode is near to the filament, said input electrode presents minimum obstruction between the filament and the output electrode, and the output electrode presents a largesurface facing the filament.

In Fig. 2 the input electrode is in the form of a plurality of parallel wires 1 electrically connected together at their ends. The filament is composed of a plurality of strands or threads 2, the several wires 1 of the input electrode lying between the several strands 2 of the filament. This provides a large filament area which, it has been dis- 70 covered, is conducive to efficiency in this hlgh current output type of audion. Moreover, with such structure and arrangement, the several parts of the input electrode are brought into close relation with the filament. The output electrode preferably, as shown, consists of a pair of electrically connected rectangular plates 3", 3, located upon opposite sides of the plane of said input electrode said bulb.

The two audion structures hereinbefore described both give a high current output. The modification shown in Fig. 1 tends to the hi gher degree of amplification and hence the greater efficiency. However, if a high current output be especially desirable, the modification shown in Fig. 2 is preferable.

What is claimed is:

1. An audion having an input electrode and a filament side by side and facing an output electrode at approximately equal distances from said input electrode andfilament.

2. An audion having an input electrode and a filament in a common plane, and an output electrode spaced at approximately the same distance from said input electrode and filament.

3. An audion having an input electrode and a filament in a common plane and an output electrode in a plane parallel .thereto.

4. An audion having an input electrode and a filament located in close relation to each other in a common plane and an output electrode facing said input electrode and filament and slightly spaced at approxi-' said input electrode and in the same plane therewith, and an output electrode in a plane parallel to the plane of said input electrode and filament.

7. An audion having an input electrode consisting of a plurality of parallel wires, and a filament consisting of threads parallel to and in the same plane with said wlres.

v 8. An audion having an input electrode consisting of a plurality of parallel wires,-

and a filament consisting of threads parallel witg said wires and in the same plane therewit 9. An audion having an input electrode consisting of a plurality of parallel wires,

a filament having strands in close relationto said wires, said electrode Wires and filament strands being parallel to one another in a common plane, and a plate parallel to said plane.

10. An audionhaving an input electrode and a filament in' a common plane, and an output electrode comprising a pair of plates uponopposite sides of said plane in parallel relation thereto. V v

11. 'An audion having an input electrode consisting of a plurality of parallel wires, a filament having strands in'close relation to said wires, said electrode'wires and filament strands being parallel to one another in a common plane,.and an output electrode comprising a pair of plates upon opposite sides of said plane in parallel relation thereto.

In witness whereof, We hereunto subscribe our names this 3 day of June A.'D., 1914.

HENDRIX JOHANNES vnq mm BIJL. ALEXANDER MOLEAN NIGOLSON.

Witnesses:

.E. EDLER, I K. L. STAHL.

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