{"id":10999,"date":"2024-09-25T08:44:55","date_gmt":"2024-09-25T03:14:55","guid":{"rendered":"https:\/\/johnsonfrancis.org\/techworld\/?p=10999"},"modified":"2024-09-25T08:44:57","modified_gmt":"2024-09-25T03:14:57","slug":"experiment-to-check-the-function-of-50-kilo-ohms-cermet-preset-potentiometer","status":"publish","type":"post","link":"https:\/\/johnsonfrancis.org\/techworld\/experiment-to-check-the-function-of-50-kilo-ohms-cermet-preset-potentiometer\/","title":{"rendered":"Experiment to check the function of 50 Kilo Ohms Cermet Preset Potentiometer"},"content":{"rendered":"<p><iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/ByKimZ0Qv_Q?si=uGpl0vEzWte5Qpdx\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><br \/>\nThree pins of the cermet 50K preset potentiometer were placed on three rows on a solderless breadboard. Jumper wires were used to connect the terminals to a digital multimeter. 200K range of resistance was selected in the multimeter. To start with, total resistance across the two terminals on one side of the cermet potentiometer was measured and found to be 50.7K. Then the resistance between one of those terminals and the central terminal was measured. Change in resistance as the central screw of the preset potentiometer was rotated to either side was recorded.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Three pins of the cermet 50K preset potentiometer were placed on three rows on a solderless breadboard. Jumper wires were used to connect the terminals to a digital multimeter. 200K range of resistance was selected in the multimeter. To start with, total resistance across the two terminals on one side of the cermet potentiometer was [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":11002,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-10999","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-amateur-radio-ham-radio"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Experiment to check the function of 50 Kilo Ohms Cermet Preset Potentiometer - Johnson&#039;s Techworld<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/johnsonfrancis.org\/techworld\/experiment-to-check-the-function-of-50-kilo-ohms-cermet-preset-potentiometer\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Experiment to check the function of 50 Kilo Ohms Cermet Preset Potentiometer - Johnson&#039;s Techworld\" \/>\n<meta property=\"og:description\" content=\"Three pins of the cermet 50K preset potentiometer were placed on three rows on a solderless breadboard. Jumper wires were used to connect the terminals to a digital multimeter. 200K range of resistance was selected in the multimeter. To start with, total resistance across the two terminals on one side of the cermet potentiometer was [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/johnsonfrancis.org\/techworld\/experiment-to-check-the-function-of-50-kilo-ohms-cermet-preset-potentiometer\/\" \/>\n<meta property=\"og:site_name\" content=\"Johnson&#039;s Techworld\" \/>\n<meta property=\"article:published_time\" content=\"2024-09-25T03:14:55+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-09-25T03:14:57+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/johnsonfrancis.org\/techworld\/wp-content\/uploads\/2024\/09\/Experiment-to-check-the-function-of-50-Kilo-Ohms-Cermet-Preset-Potentiometer-1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1207\" \/>\n\t<meta property=\"og:image:height\" content=\"675\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Johnson Francis\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Johnson Francis\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/experiment-to-check-the-function-of-50-kilo-ohms-cermet-preset-potentiometer\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/experiment-to-check-the-function-of-50-kilo-ohms-cermet-preset-potentiometer\\\/\"},\"author\":{\"name\":\"Johnson Francis\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/#\\\/schema\\\/person\\\/6201c843e80ccd3578e6196b1d007027\"},\"headline\":\"Experiment to check the function of 50 Kilo Ohms Cermet Preset Potentiometer\",\"datePublished\":\"2024-09-25T03:14:55+00:00\",\"dateModified\":\"2024-09-25T03:14:57+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/experiment-to-check-the-function-of-50-kilo-ohms-cermet-preset-potentiometer\\\/\"},\"wordCount\":104,\"publisher\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/#\\\/schema\\\/person\\\/6201c843e80ccd3578e6196b1d007027\"},\"image\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/experiment-to-check-the-function-of-50-kilo-ohms-cermet-preset-potentiometer\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/wp-content\\\/uploads\\\/2024\\\/09\\\/Experiment-to-check-the-function-of-50-Kilo-Ohms-Cermet-Preset-Potentiometer-1.jpg\",\"articleSection\":[\"Amateur Radio (Ham Radio)\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/experiment-to-check-the-function-of-50-kilo-ohms-cermet-preset-potentiometer\\\/\",\"url\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/experiment-to-check-the-function-of-50-kilo-ohms-cermet-preset-potentiometer\\\/\",\"name\":\"Experiment to check the function of 50 Kilo Ohms Cermet Preset Potentiometer - 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