{"id":32158,"date":"2024-09-13T06:34:36","date_gmt":"2024-09-13T04:34:36","guid":{"rendered":"https:\/\/www.matrelec.com\/industrial-triodes\/"},"modified":"2026-01-30T17:53:34","modified_gmt":"2026-01-30T15:53:34","slug":"industrial-triodes","status":"publish","type":"page","link":"https:\/\/www.matrelec.com\/en\/industrial-triodes\/","title":{"rendered":"Industrial triodes"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"32158\" class=\"elementor elementor-32158 elementor-31324\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-690e593 e-flex e-con-boxed e-con e-parent\" data-id=\"690e593\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7dc85c8 elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"7dc85c8\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Industrial triodes<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-824269a e-flex e-con-boxed e-con e-parent\" data-id=\"824269a\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-518fce4 elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"518fce4\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Frequently asked questions about triodes<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ab7c0d4 elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"ab7c0d4\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\tConceived and perfected at the beginning of the 20th century, the triode is an electronic signal amplification device that is at the origin of talking pictures, wireless transmission (radio communication), radar, television, computers and the latest generation of telecommunications. The vacuum diode, which creates a unidirectional current, may not be the first type of electronic tube, but it is at least the first to use radio waves to transmit a signal. \n\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5e6fb5a elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"5e6fb5a\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">What is a triode?\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c817b08 elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"c817b08\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Born under the name of audion in 1906, the triode is a vacuum lamp (electron tube)&nbsp;made up of&nbsp;three different&nbsp;electrodes: the emitting cathode, the intermediate grid and&nbsp;the receiving anode.<\/p>\n<ul>\n<li><span style=\"text-indent: -14.15pt;\">A hot electron emitter, the cathode consists of an incandescent filament or a plate heated by such a filament. This&nbsp;&nbsp; temperature rise gives electrons the energy they need to&nbsp;free themselves from the support and form an electron cloud around the cathode. <\/span><\/li>\n<li><span style=\"text-indent: -14.15pt;\">Applying an electrical potential difference of&nbsp;between the cathode&nbsp;and the anode accelerates the movement of electrons towards the anode. This results in a current of a few milliamps in the electronic circuit. <\/span><\/li>\n<li><span style=\"text-indent: -14.15pt;\">By interposing a grid between the two electrodes, the potential can be modulated to restrict or promote the passage of electrons.&nbsp;A small variation in&nbsp;electrical potential on the grid results in&nbsp;a large variation in the current collected by the anode, according to&nbsp;the principle of amplification.<\/span><\/li>\n<\/ul>\n<p class=\"MsoBodyText\">The&nbsp;triode works like a switch on the &#8221;&nbsp;all or nothing&nbsp;&#8221; principle, and&nbsp;enables significant amplification of the electronic signal without generating distortion effects.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9a8f3e8 elementor-invisible elementor-widget elementor-widget-image\" data-id=\"9a8f3e8\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"300\" height=\"170\" src=\"https:\/\/www.matrelec.com\/wp-content\/uploads\/2024\/09\/Maintenance-generateur-300x170-1.jpg\" class=\"attachment-large size-large wp-image-31902\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e9f51af elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"e9f51af\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">What types of triodes are used in industry?\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7af1e33 elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"7af1e33\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\tVacuum tubes, which were at the origin of radio communication in the 1920s and computers in the 1940s, were replaced in the 1960s by a new type of electronic component: the transistor. This semiconductor device with three active electrodes has replaced the vacuum lamp in telecommunications, electronics and computing.\n\nOnly a few sectors, such as machine tool construction, continue to use triodes because of their capacity for high-power amplification (up to over 150 MHz) in the absence of any neutrodyning effect. Triodes are also used in welding presses based on high-frequency technology. \t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-66390b7 elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"66390b7\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">What types of machines use industrial triodes?\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-13b9277 elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"13b9277\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\tGenerally speaking, all machines and equipment using high-frequency technology are equipped with high-power amplifiers in the form of a common-grid triode or a common-pentode cathode to generate waves up to 100 MHz.\n\nHigh-frequency waves can be used to modify the state of a material by raising its temperature as a result of electron agitation. Depending on the equipment used, it is then possible to cut, weld, glue, connect, dry or dehydrate materials according to their physico-chemical characteristics. Triodes with high amplification power are used in welding presses for plastics and even certain metals (induction), thermoforming machines, cold-cutting machines for tubes, gluing machines for wood, dryers and dehydration equipment for organic materials&#8230;  \t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b9b94bb elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"b9b94bb\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">What makes up a high-frequency generator?\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ab072fe elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"ab072fe\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>On an HF welding press, the generator is responsible for transforming electrical energy into high-frequency waves to power the electrodes. Incorporated into the machine frame, it&nbsp;is made up of the following&nbsp;&nbsp; components: <\/p>\n<ul>\n<li><span style=\"text-indent: -14.15pt;\">a&nbsp;electron tube or high-frequency triode&nbsp;,<\/span><\/li>\n<li><span style=\"text-indent: -14.15pt;\">a triode cooling circuit,<\/span><\/li>\n<li><span style=\"text-indent: -14.15pt;\">a current galvanometer for the anode,<\/span><\/li>\n<li><span style=\"text-indent: -14.15pt;\">an anode circuit breaker.<\/span><\/li>\n<li><span style=\"text-indent: -14.15pt;\">a water-cooled or forced-air-cooled heat sink<\/span><\/li>\n<li><span style=\"font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';\">&nbsp;<\/span><span style=\"text-indent: -14.15pt;\">an oscillator&nbsp;for&nbsp;quarter-wave HF energy transfer,<\/span><\/li>\n<li><span style=\"text-indent: -14.15pt;\">a motorized variable capacitor for high-frequency adjustment,<\/span><\/li>\n<li><span style=\"text-indent: -14.15pt;\">automatic HF power regulation at 27.12 MHz,<\/span><\/li>\n<li><span style=\"text-indent: -14.15pt;\">an anti-flash device&nbsp;electronically sensitive thyristor,<\/span><\/li>\n<li><span style=\"text-indent: -14.15pt;\">a shielded high-frequency line.<\/span><\/li>\n<\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-00bf44d elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"00bf44d\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">How do I make the triode last on an HF welding machine?\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4bf2745 elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"4bf2745\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>For high-frequency soldering presses, the&nbsp;&nbsp; electronic tubes are among the&nbsp;wear parts with the highest renewal or replacement costs. It is therefore essential to maximize the precautions taken when using&nbsp;triodes, in order to optimize their potential lifespan through a few common-sense measures: <\/p>\n<ul>\n<li><span style=\"text-indent: -14.15pt;\">Observe a minimum warm-up phase of ten minutes at the start-up of&nbsp;the&nbsp;welding machine before starting product assembly operations.&nbsp;<\/span><\/li>\n<li><span style=\"text-indent: -14.15pt;\">After completing a sequence of welding operations, it&#8217;s best to let the diode cool down for about a quarter of an hour before shutting down the press.&nbsp;<\/span><\/li>\n<li><span style=\"text-indent: -14.15pt;\">Ensure that filters are cleaned on a regular basis, with the frequency depending on the level&nbsp;of dust in the production environment&nbsp;(weekly, fortnightly, monthly, etc.).<\/span><\/li>\n<\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4bf849f elementor-align-center elementor-widget elementor-widget-button\" data-id=\"4bf849f\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/shop.matrelec.com\/fr\/\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-right\" viewBox=\"0 0 320 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M285.476 272.971L91.132 467.314c-9.373 9.373-24.569 9.373-33.941 0l-22.667-22.667c-9.357-9.357-9.375-24.522-.04-33.901L188.505 256 34.484 101.255c-9.335-9.379-9.317-24.544.04-33.901l22.667-22.667c9.373-9.373 24.569-9.373 33.941 0L285.475 239.03c9.373 9.372 9.373 24.568.001 33.941z\"><\/path><\/svg>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Discover our online store<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Frequently asked questions about triodes Conceived and perfected at the beginning of the 20th century, the triode is an electronic signal amplification device that is at the origin of talking pictures, wireless transmission (radio communication), radar, television, computers and the latest generation of telecommunications. The vacuum diode, which creates a unidirectional current, may not be [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-32158","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.matrelec.com\/en\/wp-json\/wp\/v2\/pages\/32158","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.matrelec.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.matrelec.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.matrelec.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.matrelec.com\/en\/wp-json\/wp\/v2\/comments?post=32158"}],"version-history":[{"count":2,"href":"https:\/\/www.matrelec.com\/en\/wp-json\/wp\/v2\/pages\/32158\/revisions"}],"predecessor-version":[{"id":38191,"href":"https:\/\/www.matrelec.com\/en\/wp-json\/wp\/v2\/pages\/32158\/revisions\/38191"}],"wp:attachment":[{"href":"https:\/\/www.matrelec.com\/en\/wp-json\/wp\/v2\/media?parent=32158"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}