{"version":"1.0","provider_name":"SADARS: Shefford and District Amateur Radio Society","provider_url":"https:\/\/sadars.co.uk\/wp","title":"17 May 2018 - Power supplies, how good is yours? - SADARS: Shefford and District Amateur Radio Society","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"ZnshhGYhWe\"><a href=\"https:\/\/sadars.co.uk\/wp\/archives\/1951\">17 May 2018 &#8211; Power supplies, how good is yours?<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/sadars.co.uk\/wp\/archives\/1951\/embed#?secret=ZnshhGYhWe\" width=\"600\" height=\"338\" title=\"&#8220;17 May 2018 &#8211; Power supplies, how good is yours?&#8221; &#8212; SADARS: Shefford and District Amateur Radio Society\" data-secret=\"ZnshhGYhWe\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/sadars.co.uk\/wp\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","description":"Bryan, M0BIK opened the evening with a slide show explaining the ins and outs of conventional power supplies.\u00a0 The choice of components was discussed as to which were better for various applications. It was noted that the later use of toroidal transformers meant a unit of less weight could be made which was more efficient.\u00a0 &hellip; Continue reading &rarr;","thumbnail_url":"http:\/\/sadars.co.uk\/wp\/wp-content\/uploads\/2018\/05\/2-x-12V-47A-power-supply-300x195.jpg"}