{"id":2342,"date":"2016-08-31T07:59:18","date_gmt":"2016-08-31T05:59:18","guid":{"rendered":"http:\/\/www.retro.co.za\/blog\/?p=2342"},"modified":"2016-08-31T09:07:00","modified_gmt":"2016-08-31T07:07:00","slug":"from-the-junkbox","status":"publish","type":"post","link":"http:\/\/www.retro.co.za\/blog\/?p=2342","title":{"rendered":"From the Junkbox"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-3447\" src=\"http:\/\/www.retro.co.za\/blog\/wp-content\/uploads\/2014\/01\/C1166-874x1024.jpg\" alt=\"C1166\" width=\"874\" height=\"1024\" srcset=\"http:\/\/www.retro.co.za\/blog\/wp-content\/uploads\/2014\/01\/C1166-874x1024.jpg 874w, http:\/\/www.retro.co.za\/blog\/wp-content\/uploads\/2014\/01\/C1166-256x300.jpg 256w, http:\/\/www.retro.co.za\/blog\/wp-content\/uploads\/2014\/01\/C1166.jpg 1376w\" sizes=\"auto, (max-width: 874px) 100vw, 874px\" \/><\/p>\n<p>This is a C1166 Pulse Tetrode made by <a href=\"http:\/\/www.gracesguide.co.uk\/English_Electric_Valve_Co\">English Electric<\/a>, who <a href=\"http:\/\/www.wylie.org.uk\/technology\/semics\/EEV\/EEV.htm\">also made transistors<\/a>. Good for switching <a href=\"http:\/\/www.wvs-tech.de\/wvs-tech\/data\/produkte\/hv-pulsmodulator-roehren\/pulse%20tubes%20glass%20+%20voltage%20recitifier.pdf\">17 500 volts at 15 amps<\/a>. But only for <a href=\"http:\/\/antiqueradios.com\/forums\/viewtopic.php?f=5&amp;t=108492\">1 microsecond every 1 millisecond<\/a> (<a href=\"http:\/\/www.retro.co.za\/zs1ke\/MCR1\/index.html\">1T4<\/a> and AA battery for scale).<\/p>\n<p>The filament alone needs almost 60 watts (9 amps at 6.3 volts).<\/p>\n<p>Quite useless unless one wants to build a glowbug radar or something. But quite marvelous in a way.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This is a C1166 Pulse Tetrode made by English Electric, who also made transistors. Good for switching 17 500 volts at 15 amps. But only for 1 microsecond every 1 millisecond (1T4 and AA battery for scale). The filament alone needs almost 60 watts (9 amps at 6.3 volts). Quite useless unless one wants to build a glowbug radar or something. But quite marvelous in a way.<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[75,37,31],"tags":[],"class_list":["post-2342","post","type-post","status-publish","format-standard","hentry","category-electronics","category-farting-around","category-geek"],"_links":{"self":[{"href":"http:\/\/www.retro.co.za\/blog\/index.php?rest_route=\/wp\/v2\/posts\/2342","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.retro.co.za\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.retro.co.za\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.retro.co.za\/blog\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.retro.co.za\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2342"}],"version-history":[{"count":4,"href":"http:\/\/www.retro.co.za\/blog\/index.php?rest_route=\/wp\/v2\/posts\/2342\/revisions"}],"predecessor-version":[{"id":3448,"href":"http:\/\/www.retro.co.za\/blog\/index.php?rest_route=\/wp\/v2\/posts\/2342\/revisions\/3448"}],"wp:attachment":[{"href":"http:\/\/www.retro.co.za\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2342"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.retro.co.za\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2342"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.retro.co.za\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2342"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}