{"id":1942,"date":"2021-03-28T09:18:05","date_gmt":"2021-03-27T22:18:05","guid":{"rendered":"https:\/\/amateurradiosupplies.com.au\/?post_type=product&#038;p=1942"},"modified":"2026-03-27T19:09:46","modified_gmt":"2026-03-27T08:09:46","slug":"toptek-pa-500wh-big-red-super-high-power-linear-amplifier","status":"publish","type":"product","link":"https:\/\/amateurradiosupplies.com.au\/index.php\/product\/toptek-pa-500wh-big-red-super-high-power-linear-amplifier\/","title":{"rendered":"TOPTEK PA-500WH HF High Power Linear Amplifier 500W"},"content":{"rendered":"<p><strong>NOTE:SOLD OUT 20\/03\/26 ON BACK ORDER<\/strong><\/p>\n<p>PA-500WH: Super High Power HF linear amplifier features the latest in RF amplifier design. The circuit employs strip-line technology. This advanced tuning method eliminates both the requirement for hand selecting components and point-to-point wiring. This Technology coupled with the PA-500WH exclusive modular construction provides unsurpassed reliability and RF performance. The RF transistors are continuously biased through a fully regulated bias supply. A built-in cooling fan protects the RF transistors from thermal decay. Voltage regulation, temperature compensation.<br \/>\nTOPTEK: Linear amplifiers have an outstanding reliability record over many years! RF power transistors in push-pull (parallel). With new improved amplifier protection circuits.<\/p>\n<p>Specifications:<br \/>\nFrequency Range\uff1a1.5 &#8211; 30 MHz<br \/>\nRF Input Power\uff1a5 &#8211; 50W AM\/FM . 10- 100W SSB\/CW<br \/>\nRF Output Power\uff1a450W AM\/FM . 500W SSB.<br \/>\nModes\uff1aAM \/ FM \/ SSB \/ CW<br \/>\nTransistors: 4 x Toshiba 2SC-2879<br \/>\nSWR\uff1a1.1 &#8211; 1.5<br \/>\nDC Power Requirement: DC 13.8V \/ 80 Amps Negative Ground Only<br \/>\nDimensions\uff1a195 ( W ) x 285 ( L ) x 100 ( H ) mm<br \/>\nWeight\uff1a4.0 Kg <\/p>\n<p>Location:<br \/>\nMake sure to install the PA-500WH in a location where an adequate flow of air will cool the aluminum heat sink. Do not install in an enclosed space such as console or glove box. <\/p>\n<p>Note: Prior to switching the PA-500WH amplifier (ON) check that the PA-500WH rear panel mount PTT on \/ off control switch is set to (OFF) to ensure the carrier operate relay operates.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>NOTE:SOLD OUT 20\/03\/26 ON BACK ORDER PA-500WH: Super High Power HF linear amplifier features the latest in RF amplifier design. [&hellip;]<\/p>\n","protected":false},"featured_media":15352,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[35],"product_tag":[],"class_list":{"0":"post-1942","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-amplifiers","8":"first","9":"instock","10":"shipping-taxable","11":"purchasable","12":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/amateurradiosupplies.com.au\/index.php\/wp-json\/wp\/v2\/product\/1942","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/amateurradiosupplies.com.au\/index.php\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/amateurradiosupplies.com.au\/index.php\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/amateurradiosupplies.com.au\/index.php\/wp-json\/wp\/v2\/comments?post=1942"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/amateurradiosupplies.com.au\/index.php\/wp-json\/wp\/v2\/media\/15352"}],"wp:attachment":[{"href":"https:\/\/amateurradiosupplies.com.au\/index.php\/wp-json\/wp\/v2\/media?parent=1942"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/amateurradiosupplies.com.au\/index.php\/wp-json\/wp\/v2\/product_brand?post=1942"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/amateurradiosupplies.com.au\/index.php\/wp-json\/wp\/v2\/product_cat?post=1942"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/amateurradiosupplies.com.au\/index.php\/wp-json\/wp\/v2\/product_tag?post=1942"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}