{"id":26444,"date":"2011-08-20T16:53:17","date_gmt":"2011-08-20T14:53:17","guid":{"rendered":"http:\/\/www.cqdx.ru\/ham\/?p=26444"},"modified":"2023-09-24T16:11:12","modified_gmt":"2023-09-24T16:11:12","slug":"6m4m-discovery64-pa-gs35-tube","status":"publish","type":"post","link":"https:\/\/www.cqdx.ru\/ham\/qro-qrp\/6m4m-discovery64-pa-gs35-tube\/","title":{"rendered":"6m\/4m Discovery64 PA (GS35 tube)"},"content":{"rendered":"<p><a href=\"https:\/\/www.cqdx.ru\/ham\/qro-qrp\/6m4m-discovery64-pa-gs35-tube\/attachment\/olympus-digital-camera-3\/\" rel=\"attachment wp-att-26432\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-26432\" title=\"OLYMPUS DIGITAL CAMERA\" src=\"https:\/\/www.cqdx.ru\/ham\/wp-content\/uploads\/2011\/08\/discovery64.jpg\" alt=\"\" width=\"530\" height=\"398\" srcset=\"https:\/\/www.cqdx.ru\/ham\/wp-content\/uploads\/2011\/08\/discovery64.jpg 500w, https:\/\/www.cqdx.ru\/ham\/wp-content\/uploads\/2011\/08\/discovery64-300x225.jpg 300w\" sizes=\"auto, (max-width: 530px) 100vw, 530px\" \/><\/a><\/p>\n<p>The new version of the 6m\/4m Discovery uses a Russian GS35 ceramic triode valve. This rugged triode valve will operate for long periods at an output up to 1500W. The output stage is a Pi\/L network with a tuned input circuit.<\/p>\n<p>A heavy duty toroidal transformer and voltage doubler board produce 3600V. The valve is cooled with forced air from a powerful centrifugal fan. The new Discovery features a specially designed control board.<\/p>\n<p>Incorporating soft start and a 3 min start-up timer. There is also protection for Plate over-current, Grid over-current, Over-drive and internal valve flash-over.<\/p>\n<h3><em>Specifications<\/em><\/h3>\n<table border=\"1\">\n<tbody>\n<tr>\n<td width=\"39%\">Frequency coverage<\/td>\n<td width=\"61%\">50 \u2013 54 MHz and 70 \u2013 75 MHz<\/td>\n<\/tr>\n<tr>\n<td width=\"39%\">Output power<\/td>\n<td width=\"61%\">1500W maximum<\/td>\n<\/tr>\n<tr>\n<td width=\"39%\">Drive<\/td>\n<td width=\"61%\">up to 100W<\/td>\n<\/tr>\n<tr>\n<td width=\"39%\">Power requirements<\/td>\n<td width=\"61%\">230V AC at 13A, 50\/60Hz<\/td>\n<\/tr>\n<tr>\n<td width=\"39%\">DC voltage<\/td>\n<td width=\"61%\">3600V DC<\/td>\n<\/tr>\n<tr>\n<td width=\"39%\">Gain<\/td>\n<td width=\"61%\">13dB nominal<\/td>\n<\/tr>\n<tr>\n<td width=\"39%\">Valve<\/td>\n<td width=\"61%\">single GS35 ceramic triode<\/td>\n<\/tr>\n<tr>\n<td width=\"39%\">Cooling<\/td>\n<td width=\"61%\">Forced air cooling<\/td>\n<\/tr>\n<tr>\n<td width=\"39%\">Harmonics<\/td>\n<td width=\"61%\">3rd harmonic: better than ?45dB<\/td>\n<\/tr>\n<tr>\n<td width=\"39%\">Metering<\/td>\n<td width=\"61%\">Plate current, Grid current \/ RF O\/P?<\/td>\n<\/tr>\n<tr>\n<td width=\"39%\">Protection<\/td>\n<td width=\"61%\">Plate over-current, Grid over-current, Over-drive,Internal<br \/>\nvalve flash-over, soft start &amp; 3 min timer<\/td>\n<\/tr>\n<tr>\n<td width=\"39%\">Dimensions<\/td>\n<td width=\"61%\">14in wide x 9.75in high x 17in deep 360mm x 250mm x 30mm<\/td>\n<\/tr>\n<tr>\n<td width=\"39%\">Weight<\/td>\n<td width=\"61%\">29kg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Price: ?1.949.00 (including 20 % tax) <\/p>\n","protected":false},"excerpt":{"rendered":"<p>The new version of the 6m\/4m Discovery uses a Russian GS35 ceramic triode valve. This rugged triode valve will operate for long periods at an output up to 1500W. The output stage is a Pi\/L network with a tuned input circuit. A heavy duty toroidal transformer and voltage doubler board produce 3600V. The valve is&hellip;<\/p>\n","protected":false},"author":2,"featured_media":26435,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[10],"tags":[272,320,357],"class_list":["post-26444","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-qro-qrp","tag-linear-amplifier","tag-pa","tag-qro","category-10","description-off"],"_links":{"self":[{"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/posts\/26444","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/comments?post=26444"}],"version-history":[{"count":0,"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/posts\/26444\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/media\/26435"}],"wp:attachment":[{"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/media?parent=26444"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/categories?post=26444"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cqdx.ru\/ham\/wp-json\/wp\/v2\/tags?post=26444"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}