{"id":22683,"date":"2025-06-29T18:03:37","date_gmt":"2025-06-29T17:03:37","guid":{"rendered":"https:\/\/www.crowave.com\/blog\/?p=22683"},"modified":"2025-06-29T18:05:50","modified_gmt":"2025-06-29T17:05:50","slug":"sharp-bxs-327","status":"publish","type":"post","link":"https:\/\/www.crowave.com\/blog\/2025\/06\/29\/sharp-bxs-327\/","title":{"rendered":"AM prijemnik Sharp BXS-327"},"content":{"rendered":"<p>Danas je nabavljen tranzistorski AM prijemnik oznake BXS-327, japanskog proizvo\u0111a\u010da Sharp (Hayakawa Electric Company) iz 1961. godine.<\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_02.jpg\" rel=\"lightbox[22683]\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-22685\" src=\"https:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_02.jpg\" alt=\"\" width=\"1000\" height=\"637\" srcset=\"http:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_02.jpg 1000w, http:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_02-768x489.jpg 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_01.jpg\" rel=\"lightbox[22683]\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-22684\" src=\"https:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_01.jpg\" alt=\"\" width=\"1300\" height=\"512\" srcset=\"http:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_01.jpg 1300w, http:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_01-768x302.jpg 768w\" sizes=\"auto, (max-width: 1300px) 100vw, 1300px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p>Tvrtka Sharp vu\u010de korijene iz 1912. godine kada je Tokuji Hayakawa otvorio metalsku radionicu u Tokyju. Prvi od njegovih patenata bila je metalna kop\u010da za remen nazvana \u201cTokubijo\u201d. Tijekom 1915. godine Hayakawa je patentirao metalni mehanizam za minu olovke za pisanje tako da istu nije trebalo posebno \u0161iljiti. Mogli bi re\u0107i da je to bila prete\u010da dana\u0161nje tehni\u010dke olovke. Olovka je nazvana \u201cEver-Ready Sharp\u201d (uvijek spremna nao\u0161trena) i taj naziv je kasnije inspirirao ime tvrtke koju danas poznajemo kao Sharp.<\/p>\n<p>Nakon \u0161to je 1920. godine najavljeno kako \u0107e za pet godina zapo\u010deti radijsko emitiranje u Japanu, Hayakawa je preusmjerio poslovanje na radio tehniku i kasnije elektroniku op\u0107enito. Tvrtka je 1924. godine dobila ime \u201cHayakawa Metal Works\u201d, a prva generacija kristalnih radio aparata za japansko tr\u017ei\u0161te plasirana je u prodaju sredinom 1925. godine. Tijekom 1942. godine naziv tvrtke je promijenjen u \u201cHayakawa Electric Industry Company\u201d(taj naziv originalno stoji i na na\u0161em prijemniku BXS-327 iz 1961. godine). Prve TV prijemnike tvrtka je po\u010dela proizvoditi 1953. godine (Sharp TV3-14T), a 1964. godine razvijen je prvi tranzistorski kalkulator na svijetu (Sharp CS-10A). Sredinom 1960-tih godina tvrtka je predstavila prvu mikrovalnu pe\u0107nicu s okretnom plo\u010dom. Tijekom 1970. godine ime tvrtke je preimenovano u Sharp Corporation.<\/p>\n<p>Sharp je 1973. godine proizveo prvi LCD kalkulator, a tijekom 1980-tih godina je imao suradnju sa Nintendom. Sharp je bio poznat kao proizvo\u0111a\u010d elektronike \u0161iroke potro\u0161nje sa dobrim odnosom cijene i kvalitete. No od 1976. godine Sharp tako\u0111er ulazi i u proizvodnju profesionalnih stereo sistema uvo\u0111enjem vrhunskih prijemnika, poja\u010dala, zvu\u010dnika, gramofona i kasetofona sa implementiranim najnovijim tehnologijama uklju\u010duju\u0107i i prve digitalne sisteme (linija Optonica). Od 2000. godine Sharp je ulo\u017eio velika sredstva u tvornice za proizvodnju LCD panela. Sredinom 2005. tvrtka Sharp pustila u prodaju tada najve\u0107i LCD televizor sa zaslonom dijagonale 65 in\u010da, a dvije godine kasnije predstavljen je prototip opet najve\u0107eg LCD TV-a sada sa zaslonom od 108 in\u010da. Od 2005. do 2010. Sharp je bio najve\u0107i brand mobilnih telefona u Japanu. Sharp je danas velika korporacija za proizvodnju \u0161irokog spektra elektroni\u010dkih proizvoda.<\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_03.jpg\" rel=\"lightbox[22683]\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-22686\" src=\"https:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_03.jpg\" alt=\"\" width=\"1300\" height=\"818\" srcset=\"http:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_03.jpg 1300w, http:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_03-768x483.jpg 768w\" sizes=\"auto, (max-width: 1300px) 100vw, 1300px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_04.jpg\" rel=\"lightbox[22683]\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-22687\" src=\"https:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_04.jpg\" alt=\"\" width=\"1300\" height=\"404\" srcset=\"http:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_04.jpg 1300w, http:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_04-768x239.jpg 768w\" sizes=\"auto, (max-width: 1300px) 100vw, 1300px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_05.jpg\" rel=\"lightbox[22683]\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-22688\" src=\"https:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_05.jpg\" alt=\"\" width=\"1300\" height=\"674\" srcset=\"http:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_05.jpg 1300w, http:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_05-768x398.jpg 768w\" sizes=\"auto, (max-width: 1300px) 100vw, 1300px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_06.jpg\" rel=\"lightbox[22683]\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-22689\" src=\"https:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_06.jpg\" alt=\"\" width=\"1300\" height=\"581\" srcset=\"http:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_06.jpg 1300w, http:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_06-768x343.jpg 768w\" sizes=\"auto, (max-width: 1300px) 100vw, 1300px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_07.jpg\" rel=\"lightbox[22683]\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-22690\" src=\"https:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_07.jpg\" alt=\"\" width=\"1300\" height=\"580\" srcset=\"http:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_07.jpg 1300w, http:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_07-768x343.jpg 768w\" sizes=\"auto, (max-width: 1300px) 100vw, 1300px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_08.jpg\" rel=\"lightbox[22683]\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-22691\" src=\"https:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_08.jpg\" alt=\"\" width=\"1300\" height=\"866\" srcset=\"http:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_08.jpg 1300w, http:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_08-768x512.jpg 768w\" sizes=\"auto, (max-width: 1300px) 100vw, 1300px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_09.jpg\" rel=\"lightbox[22683]\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-22692\" src=\"https:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_09.jpg\" alt=\"\" width=\"1300\" height=\"672\" srcset=\"http:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_09.jpg 1300w, http:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_09-768x397.jpg 768w\" sizes=\"auto, (max-width: 1300px) 100vw, 1300px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_11.jpg\" rel=\"lightbox[22683]\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-22694\" src=\"https:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_11.jpg\" alt=\"\" width=\"1300\" height=\"928\" srcset=\"http:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_11.jpg 1300w, http:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_11-768x548.jpg 768w\" sizes=\"auto, (max-width: 1300px) 100vw, 1300px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p>Sharp BXS-327 ima dva AM valna podru\u010dja: standardni radiodifuzni srednji val 535-1605 kHz i kratki val u rasponu 16-18 MHz. Bazira se na osam germanijskih PNP tranzistora od kojih su dva u krugu AM tunera (lokalni oscilator i mje\u0161a\u010d), dva su za dva stupnja MF poja\u010danja (455 kHz), a preostala \u010detiri tranzistora su za transformatorsko NF audio poja\u010dalo sa push-pull izlazom. Specifi\u010dnost je \u0161to je bazna struja izlaznih tranzistora audio poja\u010dala stabilizirana termistorom. Postojao je i vanjskim izgledom identi\u010dan model BX-327 kod kojeg u tuneru radi samo jedan tranzistor (samoosciliraju\u0107i mje\u0161a\u010d), a tranzistor \u201evi\u0161ka\u201c je prenamijenjen za ARP (automatsku regulaciju poja\u010danja).<\/p>\n<p>Prili\u010dno specifi\u010dno za male d\u017eepne AM prijemnike iz 1960-tih godina, ovaj Sharp BXS-327 je opremljen uti\u010dnicama za vanjski zvu\u010dnik ili slu\u0161alice kao i uti\u010dnicom za vanjsko napajanje. Napajanje je ina\u010de 6 V preko \u010detiri standardne AA baterije (japanska oznaka UM-3). Tipi\u010dno za kvalitetnije prijemnike toga doba, Sharp BXS-327 je dolazio u ko\u017enoj futroli sa remenom za no\u0161enje u sme\u0111oj ili crnoj boji.<\/p>\n<p>Prema dosada\u0161njim iskustvima u razgledavanju malih d\u017eepnih tranzistorskih AM prijemnika iz 1960\/70-tih godina jasno se mo\u017ee primijetiti kako su modeli renomiranih proizvo\u0111a\u010da s po\u010detka 1960-tih godina bili elektroni\u010dki prili\u010dno dobro konstruirani sa najmanje osam tranzistora. No u kasnijim godinama, kako je konkurencija rasla i elektronika \u0161iroke potro\u0161nje uzela maha, naglasak se po\u010deo stavljati na \u0161to br\u017eu i jeftiniju cijenu proizvodnje te su elektroni\u010dke sheme AM radio prijemnika reducirane u svim segmentima (tuner, MF poja\u010dala, NF poja\u010dalo), ponegdje do same granice prakti\u010dne upotrebljivosti.<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_10.jpg\" rel=\"lightbox[22683]\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-22693\" src=\"https:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_10.jpg\" alt=\"\" width=\"1300\" height=\"567\" srcset=\"http:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_10.jpg 1300w, http:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_10-768x335.jpg 768w\" sizes=\"auto, (max-width: 1300px) 100vw, 1300px\" \/><\/a><span style=\"color: #00ffff;\"><em>Specifi\u010dna konstrukcija elektrolitskog kondenzatora (lijevo) i AM detektorska dioda (desno).\u00a0<\/em><\/span><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Danas je nabavljen tranzistorski AM prijemnik oznake BXS-327, japanskog proizvo\u0111a\u010da Sharp (Hayakawa Electric Company) iz 1961. godine. &nbsp; &nbsp; Tvrtka Sharp vu\u010de korijene iz 1912. godine kada je Tokuji Hayakawa otvorio metalsku radionicu u Tokyju. Prvi od njegovih patenata bila je metalna kop\u010da za remen nazvana \u201cTokubijo\u201d. Tijekom 1915. godine Hayakawa je patentirao metalni mehanizam [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":22685,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":{"0":"post-22683","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-radio","8":"czr-hentry"},"jetpack_featured_media_url":"https:\/\/crowave.com\/blog\/wp-content\/uploads\/2025\/06\/sharp_bxs_327_02.jpg","_links":{"self":[{"href":"https:\/\/www.crowave.com\/blog\/wp-json\/wp\/v2\/posts\/22683","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.crowave.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.crowave.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.crowave.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.crowave.com\/blog\/wp-json\/wp\/v2\/comments?post=22683"}],"version-history":[{"count":3,"href":"https:\/\/www.crowave.com\/blog\/wp-json\/wp\/v2\/posts\/22683\/revisions"}],"predecessor-version":[{"id":22697,"href":"https:\/\/www.crowave.com\/blog\/wp-json\/wp\/v2\/posts\/22683\/revisions\/22697"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.crowave.com\/blog\/wp-json\/wp\/v2\/media\/22685"}],"wp:attachment":[{"href":"https:\/\/www.crowave.com\/blog\/wp-json\/wp\/v2\/media?parent=22683"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.crowave.com\/blog\/wp-json\/wp\/v2\/categories?post=22683"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.crowave.com\/blog\/wp-json\/wp\/v2\/tags?post=22683"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}