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Novel direct thermal low-voltage medium-power amplification tube

A technology of power amplification and electronic tubes, which is applied in the field of new direct-heating low-voltage medium power amplification electronic tubes, which can solve the problems of large filter volume, leakage, flashover, etc., and achieve the effect of small filter volume

Inactive Publication Date: 2019-04-02
南京誉凯电子科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Nowadays, most of the direct-heating medium-power amplifier tubes in audio equipment are originally designed to work at around 1000 volts. In use, there are often disadvantages such as flashover, leakage, breakdown, and large filter volume in the tube, which need to be improved.

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  • Novel direct thermal low-voltage medium-power amplification tube
  • Novel direct thermal low-voltage medium-power amplification tube
  • Novel direct thermal low-voltage medium-power amplification tube

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Embodiment Construction

[0010] See above-mentioned accompanying drawing and can know the structure of the present invention. It is characterized in that: its electron tube core 1 is twice as long as the existing power amplification tube core, which is 110m, such as 300B power amplification tube core; its cathode is four groups of inverted V-shaped filament parallel structure cathode 5, composed of four A group of inverted V-shaped filaments 5 are connected in parallel, and the bow tie of the filament is hung on the hook 2; There is a hole, which is riveted on the left side of the upper combined mica sheet 3 and 4 of the electron tube by means of a hollow rivet 8; its cathode combined positioning mica sheet consists of a mica sheet 3 with a longitudinal through groove 9 in the center and a mica sheet mounted on its The positioning mica sheet 4 on the reverse side of the sheet is composed of the right end surface of the positioning mica sheet 4, the centerline of the groove 9 and the lifting point of t...

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Abstract

The invention relates to a novel direct thermal low-voltage medium-power amplification tube. The tube core of the electron tube is twice as long as the tube core a current 300B power amplifying tube;the cathode of the electron tube is four sets of inverted V-shaped filament parallel structure cathodes 5; a cathode positioning piece is a combined positioning mica piece 3; and the anode of the electron tube is a cross-shaped transverse section hollow combined graphite anode 1 which is composed of two arc-shaped graphite semi-anodes with thickness of 1.0-1.5mm and the smoothness of [Delta][Delta][Delta]8. The novel direct thermal low-voltage medium-power amplification tube has an operating voltage of 300V, an anode current of 120 mA, anode power consumption of 60 watts and single tube outputpower reaching up to 22.5 watts, is saved in energy, safe and reliable and small in size of the filter, and can replace a power amplification electron tube connected in parallel in the 300B.

Description

technical field [0001] The invention relates to a power amplifying electronic tube, in particular to a novel direct-heating type low-voltage medium power amplifying electronic tube. Background technique [0002] Nowadays, most of the direct-heating medium-power amplifying tubes in audio equipment are originally designed to work at around 1000 volts. During use, there are often disadvantages such as flashover, leakage, breakdown, and large filter volume in the tube, which need to be improved. Contents of the invention [0003] The object of the present invention is to provide a novel direct-heating low-voltage medium-power amplifying electron tube for the above-mentioned defects in the prior art. [0004] The technical solution of the present invention is inspired by the parallel connection of 300B medium power amplifying electronic tube power amplifiers, and is characterized in that: the tube core is twice as long as the existing power amplifying tube core, such as the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J19/10H01J19/32H01J19/46H01J19/54
CPCH01J19/54H01J19/10H01J19/32H01J19/46
Inventor 刘梅
Owner 南京誉凯电子科技有限公司
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