{"id":104,"date":"2018-09-04T14:18:55","date_gmt":"2018-09-04T12:18:55","guid":{"rendered":"http:\/\/www.krusinsky.cz\/domains\/krusinsky.cz\/?page_id=104"},"modified":"2026-09-20T13:59:46","modified_gmt":"2026-09-20T11:59:46","slug":"promenne-rezistory-kondenzatory-a-civky","status":"publish","type":"page","link":"https:\/\/www.krusinsky.cz\/domains\/krusinsky.cz\/zakladni-elektrotechnicke-soucastky-a-jejich-znaceni-pismeny\/promenne-rezistory-kondenzatory-a-civky\/","title":{"rendered":"Prom\u011bnn\u00e9 rezistory, kondenz\u00e1tory a c\u00edvky"},"content":{"rendered":"<p>V\u0161echny 3 tyto typy sou\u010d\u00e1stek existuj\u00ed:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>pevn\u00e9<\/li>\n<li>prom\u011bnn\u00e9<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>Zde jsou n\u011bjak\u00e9 obr\u00e1zky pevn\u00fdch rezistor\u016f:<\/p>\n<table>\n<tbody>\n<tr>\n<td><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-932\" src=\"https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2026\/09\/rezistor_s_napisem-300x225.png\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2026\/09\/rezistor_s_napisem-300x225.png 300w, https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2026\/09\/rezistor_s_napisem-1024x768.png 1024w, https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2026\/09\/rezistor_s_napisem-768x576.png 768w, https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2026\/09\/rezistor_s_napisem.png 1448w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-933\" src=\"https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2026\/09\/rezistor-s-prouzky-300x225.png\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2026\/09\/rezistor-s-prouzky-300x225.png 300w, https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2026\/09\/rezistor-s-prouzky-1024x768.png 1024w, https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2026\/09\/rezistor-s-prouzky-768x576.png 768w, https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2026\/09\/rezistor-s-prouzky.png 1448w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Nepevn\u00e9 rezistory je\u0161t\u011b k tomu existuj\u00ed:<\/p>\n<ul>\n<li>prom\u011bnn\u00e9 rezistory: Vypadaj\u00ed stejn\u011b nebo podobn\u011b jako potenciometry, akor\u00e1t maj\u00ed 2 v\u00fdvody.<\/li>\n<li>potenciometry nebo rezistory s pohybliv\u00fdmi kontakty (Rozd\u00edl mezi nimi je mo\u017en\u00e1 pouze v hodnot\u00e1ch odporov\u00e9 dr\u00e1hy.) (Prost\u0159edn\u00ed v\u00fdvod je spojen s b\u011b\u017ecem, kter\u00fd se pohybuje po odporov\u00e9 dr\u00e1ze, kter\u00e1 spojuje krajn\u00ed v\u00fdvody.)<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-935\" src=\"https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2026\/09\/potenciometr-300x226.jpg\" alt=\"\" width=\"300\" height=\"226\" srcset=\"https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2026\/09\/potenciometr-300x226.jpg 300w, https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2026\/09\/potenciometr-768x578.jpg 768w, https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2026\/09\/potenciometr.jpg 1020w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/li>\n<li>odporov\u00e9 trimry (Pouze konstukt\u00e9r nebo oprav\u00e1\u0159 za\u0159\u00edzen\u00ed s nimi nastav\u00ed hodnotu a b\u011b\u017en\u00fd u\u017eivatel s nimi nemanipuluje. Jinak funguj\u00ed na stejn\u00e9m principu jako potenciometry)<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-937\" src=\"https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2026\/09\/odporovy-trimr-300x225.png\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2026\/09\/odporovy-trimr-300x225.png 300w, https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2026\/09\/odporovy-trimr-1024x768.png 1024w, https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2026\/09\/odporovy-trimr-768x576.png 768w, https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2026\/09\/odporovy-trimr.png 1448w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/li>\n<\/ul>\n<p>Zde jsou n\u011bjak\u00e1 sch\u00e9mata zapojen\u00ed prom\u011bnn\u00e9ho rezistoru a potenciometru (V prvn\u00edch t\u0159ech se reguluje proud, ve \u010dtvrt\u00e9m nap\u011bt\u00ed.):<\/p>\n<ol>\n<li>Prom\u011bnn\u00fd rezistor-reostat:<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-111\" src=\"https:\/\/www.krusinsky.cz\/domains\/krusinsky.cz\/wp-content\/uploads\/2018\/09\/baterie-a-\u017e\u00e1rovka-a-reostat-300x203.jpg\" alt=\"\" width=\"300\" height=\"203\" srcset=\"https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2018\/09\/baterie-a-\u017e\u00e1rovka-a-reostat-300x203.jpg 300w, https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2018\/09\/baterie-a-\u017e\u00e1rovka-a-reostat.jpg 476w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/li>\n<li>Potenciometr jako reostat (Pozn.: I t\u0159et\u00ed v\u00fdvod je b\u011b\u017en\u011b zapojen. Spojuje se s b\u011b\u017ecem.)<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-109\" src=\"https:\/\/www.krusinsky.cz\/domains\/krusinsky.cz\/wp-content\/uploads\/2018\/09\/potenciometr-jako-reostat-300x203.jpg\" alt=\"\" width=\"300\" height=\"203\" srcset=\"https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2018\/09\/potenciometr-jako-reostat-300x203.jpg 300w, https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2018\/09\/potenciometr-jako-reostat.jpg 476w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/li>\n<li>Nebo se m\u016f\u017ee takto ke ka\u017ed\u00e9mu konci odporov\u00e9 dr\u00e1hy p\u0159ipojit jin\u00fd spot\u0159ebi\u010d.:<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-110\" src=\"https:\/\/www.krusinsky.cz\/domains\/krusinsky.cz\/wp-content\/uploads\/2018\/09\/potenciometr-jako-reostat-2-243x300.jpg\" alt=\"\" width=\"243\" height=\"300\" srcset=\"https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2018\/09\/potenciometr-jako-reostat-2-243x300.jpg 243w, https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2018\/09\/potenciometr-jako-reostat-2.jpg 329w\" sizes=\"auto, (max-width: 243px) 100vw, 243px\" \/><\/li>\n<li>Toto je potenciometr jako d\u011bli\u010d nap\u011bt\u00ed:<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-86\" src=\"https:\/\/www.krusinsky.cz\/domains\/krusinsky.cz\/wp-content\/uploads\/2018\/09\/d\u011bli\u010d-nap\u011bt\u00ed-197x300.jpg\" alt=\"\" width=\"197\" height=\"300\" srcset=\"https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2018\/09\/d\u011bli\u010d-nap\u011bt\u00ed-197x300.jpg 197w, https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2018\/09\/d\u011bli\u010d-nap\u011bt\u00ed.jpg 234w\" sizes=\"auto, (max-width: 197px) 100vw, 197px\" \/><\/li>\n<\/ol>\n<p>U d\u011bli\u010de nap\u011bt\u00ed to fuguje tak, \u017ee \u010d\u00edm je b\u011b\u017eec bl\u00ed\u017ee k uzlu, t\u00edm je na v\u00fdstupu d\u011bli\u010de men\u0161\u00ed nap\u011bt\u00ed.<\/p>\n<p>Zde jsou n\u011bjak\u00e9 obr\u00e1zky pevn\u00fdch kondenz\u00e1tor\u016f:<strong> (pozn.: U v\u0161ech kondenz\u00e1tor\u016f je napsan\u00e9 max. nap\u011bt\u00ed, ke kter\u00e9mu je sm\u00edte p\u0159ipojit, ani\u017e byste je zni\u010dili.)<br \/>\n<\/strong><\/p>\n<table title=\"pevn\u00e9 kondenz\u00e1tory\">\n<tbody>\n<tr>\n<td><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-938\" src=\"https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2026\/09\/kondenzatory-300x225.png\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2026\/09\/kondenzatory-300x225.png 300w, https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2026\/09\/kondenzatory-1024x768.png 1024w, https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2026\/09\/kondenzatory-768x576.png 768w, https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2026\/09\/kondenzatory.png 1448w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-939\" src=\"https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2026\/09\/kondenzatory-2-300x225.png\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2026\/09\/kondenzatory-2-300x225.png 300w, https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2026\/09\/kondenzatory-2-1024x768.png 1024w, https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2026\/09\/kondenzatory-2-768x576.png 768w, https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2026\/09\/kondenzatory-2.png 1448w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Napravo jsou elektrolytick\u00e9. Tzn. vrstva dielektrika je z elektrolytu. Ty maj\u00ed v\u011bt\u0161\u00ed rozm\u011bry a kapacitu. <strong>U nich je t\u0159eba si d\u00e1vat pozor, abyste je nep\u0159ipojili k el. nap\u011bt\u00ed opa\u010dnou polaritou ne\u017e je na nich naps\u00e1no. Mohli byste je zni\u010dit.<\/strong><\/p>\n<p>V minulosti se pou\u017e\u00edvaly i prom\u011bnn\u00e9 kondenz\u00e1tory a kapacitn\u00ed trimry, co\u017e byla obdoba prom\u011bnn\u00e9ho rezistoru, ale ty u\u017e se dnes tolik nepou\u017e\u00edvaj\u00ed.<\/p>\n<p>&nbsp;<\/p>\n<p>A s c\u00edvkama je to obdobn\u00e9. Akor\u00e1t nastaviteln\u00e9 c\u00edvky existuj\u00ed jen uvnit\u0159 za\u0159\u00edzen\u00ed. Tj.: Neexistuj\u00ed takov\u00e9, se kter\u00fdmi by manipuloval b\u011b\u017en\u00fd u\u017eivatel. Ale tak\u00e9 u\u017e se dnes tolik nepou\u017e\u00edvaj\u00ed.<\/p>\n<p>N\u00ed\u017ee je nejd\u0159\u00edve obr\u00e1zek pevn\u00fdch c\u00edvek a \u00fapln\u011b dole obr\u00e1zek nastaviteln\u00e9 c\u00edvky. Lze ji nastavit nap\u0159. \u0161roubov\u00e1kem. Pou\u017e\u00edv\u00e1 se tak\u00e9 nap\u0159. v p\u0159ij\u00edma\u010d\u00edch, vys\u00edla\u010d\u00edch, zesilova\u010d\u00edch, m\u011b\u0159\u00edc\u00ed technice, RF filtrech, atd.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-945\" src=\"https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2026\/09\/civky-300x225.png\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2026\/09\/civky-300x225.png 300w, https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2026\/09\/civky-1024x768.png 1024w, https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2026\/09\/civky-768x576.png 768w, https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2026\/09\/civky.png 1448w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-947\" src=\"https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2026\/09\/nastavitelna-civka-300x225.png\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2026\/09\/nastavitelna-civka-300x225.png 300w, https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2026\/09\/nastavitelna-civka-1024x768.png 1024w, https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2026\/09\/nastavitelna-civka-768x576.png 768w, https:\/\/www.krusinsky.cz\/wp-content\/uploads\/2026\/09\/nastavitelna-civka.png 1448w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>V\u0161echny 3 tyto typy sou\u010d\u00e1stek existuj\u00ed: pevn\u00e9 prom\u011bnn\u00e9 Zde jsou n\u011bjak\u00e9 obr\u00e1zky pevn\u00fdch rezistor\u016f: Nepevn\u00e9 rezistory je\u0161t\u011b k tomu existuj\u00ed: prom\u011bnn\u00e9 rezistory: Vypadaj\u00ed stejn\u011b nebo podobn\u011b jako potenciometry, akor\u00e1t maj\u00ed 2 v\u00fdvody. potenciometry nebo rezistory s pohybliv\u00fdmi kontakty (Rozd\u00edl mezi nimi je mo\u017en\u00e1 pouze v hodnot\u00e1ch odporov\u00e9 dr\u00e1hy.) (Prost\u0159edn\u00ed v\u00fdvod je spojen s b\u011b\u017ecem, kter\u00fd [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":100,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"footnotes":""},"class_list":["post-104","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.krusinsky.cz\/domains\/krusinsky.cz\/wp-json\/wp\/v2\/pages\/104","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.krusinsky.cz\/domains\/krusinsky.cz\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.krusinsky.cz\/domains\/krusinsky.cz\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.krusinsky.cz\/domains\/krusinsky.cz\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.krusinsky.cz\/domains\/krusinsky.cz\/wp-json\/wp\/v2\/comments?post=104"}],"version-history":[{"count":25,"href":"https:\/\/www.krusinsky.cz\/domains\/krusinsky.cz\/wp-json\/wp\/v2\/pages\/104\/revisions"}],"predecessor-version":[{"id":948,"href":"https:\/\/www.krusinsky.cz\/domains\/krusinsky.cz\/wp-json\/wp\/v2\/pages\/104\/revisions\/948"}],"up":[{"embeddable":true,"href":"https:\/\/www.krusinsky.cz\/domains\/krusinsky.cz\/wp-json\/wp\/v2\/pages\/100"}],"wp:attachment":[{"href":"https:\/\/www.krusinsky.cz\/domains\/krusinsky.cz\/wp-json\/wp\/v2\/media?parent=104"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}