{"id":1403,"date":"2016-05-10T12:00:49","date_gmt":"2016-05-10T16:00:49","guid":{"rendered":"http:\/\/www.tentec.com:4080\/?p=1403"},"modified":"2025-02-11T20:26:11","modified_gmt":"2025-02-12T01:26:11","slug":"alpha-374-274","status":"publish","type":"post","link":"https:\/\/www.alpharfsystems.com\/?p=1403","title":{"rendered":"Alpha 374 \/ 274"},"content":{"rendered":"<p><!--more--><\/p>\n<p>Alpha 374 \/ 274<br \/>\nShipped 1974 &#8211; 1978<\/p>\n<div id=\"metaslider-id-1698\" style=\"max-width: 500px;\" class=\"ml-slider-3-103-0 metaslider metaslider-flex metaslider-1698 ml-slider has-dots-nav ms-theme-default\" role=\"region\" aria-label=\"a374\/274\" data-height=\"300\" data-width=\"500\">\n    <div id=\"metaslider_container_1698\">\n        <div id=\"metaslider_1698\">\n            <ul class='slides'>\n                <li style=\"display: block; width: 100%;\" class=\"slide-1699 ms-image \" aria-roledescription=\"slide\" data-date=\"2016-05-14 23:14:21\" data-slide-type=\"image\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.alpharfsystems.com\/wp-content\/uploads\/2016\/05\/374_alpha_front1-500x300.jpg\" height=\"300\" width=\"500\" alt=\"\" class=\"slider-1698 slide-1699 msDefaultImage\" \/><div class=\"caption-wrap\"><div class=\"caption\">Alpha 374 - front<\/div><\/div><\/li>\n                <li style=\"display: none; width: 100%;\" class=\"slide-1700 ms-image \" aria-roledescription=\"slide\" data-date=\"2016-05-14 23:14:53\" data-slide-type=\"image\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.alpharfsystems.com\/wp-content\/uploads\/2016\/05\/374_alpha_meter1-500x300.jpg\" height=\"300\" width=\"500\" alt=\"\" class=\"slider-1698 slide-1700 msDefaultImage\" \/><div class=\"caption-wrap\"><div class=\"caption\">Alpha 374 - meter<\/div><\/div><\/li>\n                <li style=\"display: none; width: 100%;\" class=\"slide-1701 ms-image \" aria-roledescription=\"slide\" data-date=\"2016-05-14 23:15:20\" data-slide-type=\"image\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.alpharfsystems.com\/wp-content\/uploads\/2016\/05\/374_alpha_top1-500x300.jpg\" height=\"300\" width=\"500\" alt=\"\" class=\"slider-1698 slide-1701 msDefaultImage\" \/><div class=\"caption-wrap\"><div class=\"caption\">Alpha 374 - inside top<\/div><\/div><\/li>\n                <li style=\"display: none; width: 100%;\" class=\"slide-1702 ms-image \" aria-roledescription=\"slide\" data-date=\"2016-05-14 23:15:51\" data-slide-type=\"image\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.alpharfsystems.com\/wp-content\/uploads\/2016\/05\/374_front_panel_off-500x300.jpg\" height=\"300\" width=\"500\" alt=\"\" class=\"slider-1698 slide-1702 msDefaultImage\" \/><div class=\"caption-wrap\"><div class=\"caption\">Alpha 374 - front panel off<\/div><\/div><\/li>\n                <li style=\"display: none; width: 100%;\" class=\"slide-1703 ms-image \" aria-roledescription=\"slide\" data-date=\"2016-05-14 23:16:44\" data-slide-type=\"image\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.alpharfsystems.com\/wp-content\/uploads\/2016\/05\/alpha374_top-500x300.jpg\" height=\"300\" width=\"500\" alt=\"\" class=\"slider-1698 slide-1703 msDefaultImage\" \/><div class=\"caption-wrap\"><div class=\"caption\">Alpha 374 - inside top<\/div><\/div><\/li>\n                <li style=\"display: none; width: 100%;\" class=\"slide-1704 ms-image \" aria-roledescription=\"slide\" data-date=\"2016-05-14 23:17:29\" data-slide-type=\"image\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.alpharfsystems.com\/wp-content\/uploads\/2016\/05\/IMG_7007-500x300.jpg\" height=\"300\" width=\"500\" alt=\"\" class=\"slider-1698 slide-1704 msDefaultImage\" \/><\/li>\n                <li style=\"display: none; width: 100%;\" class=\"slide-1705 ms-image \" aria-roledescription=\"slide\" data-date=\"2016-05-14 23:17:56\" data-slide-type=\"image\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.alpharfsystems.com\/wp-content\/uploads\/2016\/05\/IMG_7013-500x300.jpg\" height=\"300\" width=\"500\" alt=\"\" class=\"slider-1698 slide-1705 msDefaultImage\" \/><div class=\"caption-wrap\"><div class=\"caption\">Alpha 374 - back panel<\/div><\/div><\/li>\n                <li style=\"display: none; width: 100%;\" class=\"slide-1706 ms-image \" aria-roledescription=\"slide\" data-date=\"2016-05-14 23:18:20\" data-slide-type=\"image\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.alpharfsystems.com\/wp-content\/uploads\/2016\/05\/IMG_7011-500x300.jpg\" height=\"300\" width=\"500\" alt=\"\" class=\"slider-1698 slide-1706 msDefaultImage\" \/><div class=\"caption-wrap\"><div class=\"caption\">Alpha 374 - inside top<\/div><\/div><\/li>\n            <\/ul>\n        <\/div>\n        \n    <\/div>\n<\/div>\n<p>&#8212;<\/p>\n<p>Model 374 Specs:<\/p>\n<p>3 Air Cooled Eimac 8874 \/ 3CX400A7<br \/>\nLegal Limit 80m &#8211; 10m (except 12m)<br \/>\n&#8220;Bandpass&#8221; and Manual Tuning Selections<br \/>\nOpen-frame Relay T\/R<br \/>\n240 \/ 120 vac<br \/>\nDimensions: 7.5&#8243;h x 17&#8243;w x 13&#8243;d<\/p>\n<p>&#8212;<\/p>\n<p>Model 274 Specs:<\/p>\n<p>2 Air Cooled Eimac 8874 \/ 3CX400A7<br \/>\nLegal Limit 80m &#8211; 10m (except 12m)<br \/>\nManual Tuning<br \/>\nOpen-frame Relay T\/R<br \/>\n240 \/ 120 vac<br \/>\nDimensions: 7.5&#8243;h x 17&#8243;w x 13&#8243;d<\/p>\n<h3><strong>Documentation<\/strong><\/h3>\n<table>\n<tbody>\n<tr>\n<td>Alpha 374 Instruction Manual<\/td>\n<td><a href=\"http:\/\/www.alpharfsystems.com\/wp-content\/uploads\/2016\/05\/Alpha_374_Instruction_Manual.pdf\">Alpha_374_Instruction_Manual<\/a><\/td>\n<\/tr>\n<tr>\n<td>374 Parts List<\/td>\n<td><a href=\"https:\/\/www.alpharfsystems.com\/wp-content\/uploads\/2016\/05\/374-PARTS-LIST.pdf\">374 PARTS LIST<\/a><\/td>\n<\/tr>\n<tr>\n<td>374 Bandpass Adjustments<\/td>\n<td><a href=\"http:\/\/www.alpharfsystems.com\/wp-content\/uploads\/2016\/05\/374_bandpass_adj.doc\">374_bandpass_adj<\/a><\/td>\n<\/tr>\n<tr>\n<td>374 Front and Sides Removal<\/td>\n<td><a href=\"http:\/\/www.alpharfsystems.com\/wp-content\/uploads\/2016\/05\/374_front_and_side_panel_removal.doc\">374_front_and_side_panel_removal<\/a><\/td>\n<\/tr>\n<tr>\n<td>Care and Feeding of Alpha 374<\/td>\n<td><a href=\"http:\/\/www.alpharfsystems.com\/wp-content\/uploads\/2016\/05\/care_and_feeding_of_Alpha_374.doc\">care_and_feeding_of_Alpha_374<\/a><\/td>\n<\/tr>\n<tr>\n<td>Amplifier Keying Specifications<\/td>\n<td><a href=\"http:\/\/www.alpharfsystems.com\/wp-content\/uploads\/2016\/05\/Amp_Keying_Specs.pdf\">Amp_Keying_Specs<\/a><\/td>\n<\/tr>\n<tr>\n<td>Alpha Amplifier Production Dates<\/td>\n<td><a href=\"http:\/\/www.alpharfsystems.com\/wp-content\/uploads\/2016\/05\/Alpha_Amplifier_Production_Dates.pdf\">Alpha_Amplifier_Production_Dates<\/a><\/td>\n<\/tr>\n<tr>\n<td>WARC Band Settings<\/td>\n<td><a href=\"http:\/\/www.alpharfsystems.com\/wp-content\/uploads\/2016\/05\/WARC_1979_Amplifier_Settings.doc\">WARC_1979_Amplifier_Settings<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":5,"featured_media":1699,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-1403","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-discontinued-products"],"_links":{"self":[{"href":"https:\/\/www.alpharfsystems.com\/index.php?rest_route=\/wp\/v2\/posts\/1403","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.alpharfsystems.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.alpharfsystems.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.alpharfsystems.com\/index.php?rest_route=\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/www.alpharfsystems.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1403"}],"version-history":[{"count":3,"href":"https:\/\/www.alpharfsystems.com\/index.php?rest_route=\/wp\/v2\/posts\/1403\/revisions"}],"predecessor-version":[{"id":3890,"href":"https:\/\/www.alpharfsystems.com\/index.php?rest_route=\/wp\/v2\/posts\/1403\/revisions\/3890"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpharfsystems.com\/index.php?rest_route=\/wp\/v2\/media\/1699"}],"wp:attachment":[{"href":"https:\/\/www.alpharfsystems.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1403"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpharfsystems.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1403"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpharfsystems.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1403"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}