{"id":1362,"date":"2018-09-26T20:57:29","date_gmt":"2018-09-27T03:57:29","guid":{"rendered":"http:\/\/philcoradio.com\/library\/?page_id=1362"},"modified":"2018-09-26T20:57:29","modified_gmt":"2018-09-27T03:57:29","slug":"early-30s-philco-wiring-color-codes","status":"publish","type":"page","link":"https:\/\/philcoradio.com\/library\/index.php\/shop-talk\/general\/early-30s-philco-wiring-color-codes\/","title":{"rendered":"Early 30s Philco Wiring Color Codes"},"content":{"rendered":"<p><em><strong>[Contributed by Chuck Schwark]<\/strong><\/em><\/p>\n<p>From the May, 1934 issue of the\u00a0<span class=\"mycode_i\"><span class=\"mycode_u\">Philco Serviceman<\/span><\/span>, page 4:<\/p>\n<p><span class=\"mycode_b\">COLOR CODE FOR PHILCO WIRING<\/span><\/p>\n<p><span class=\"mycode_b\"><span class=\"mycode_size\">P<\/span><\/span>hilco has adopted the standard R.M.S. color code as employed by various other radio manufacturers.<br \/>\nThis coloring of wires is held wherever possible, and there are only a very few exceptions where the<br \/>\nstandard coloring is not used.<br \/>\nThe chart below indicates the various colors of wires and the types of circuits in which these wires are used:<br \/>\n__________________________________________________<\/p>\n<p><strong><span class=\"mycode_b\" style=\"color: #ff0000;\"><span class=\"mycode_color\">RED<\/span><\/span><\/strong>\u00a0. . . . . . . . . Filaments and odd wires<\/p>\n<p><strong><span class=\"mycode_b\" style=\"color: #993300;\"><span class=\"mycode_color\">BROWN<\/span><\/span><\/strong>\u00a0. . . . . . . Cathodes and grounds<\/p>\n<p><strong><span class=\"mycode_b\">WHITE<\/span><\/strong>\u00a0. . . . . . . . B+ and screens of output pentodes<\/p>\n<p><strong><span class=\"mycode_b\">WHITE<\/span><\/strong>\u00a0w\/<strong><span class=\"mycode_b\">BLACK<\/span><\/strong>\u00a0tracer<br \/>\nand\/or<br \/>\n<strong><span class=\"mycode_b\">BLACK<\/span><\/strong>\u00a0w\/<strong><span class=\"mycode_b\">WHITE<\/span><\/strong>\u00a0tracer . . . . Plates<\/p>\n<p><strong><span class=\"mycode_b\" style=\"color: #008000;\"><span class=\"mycode_color\">GREEN<\/span><\/span><\/strong>\u00a0. . . . . . . . Grids and screen grids<br \/>\n__________________________________________________<\/p>\n<p>This may seem like a limited selection, but remember, this is 1934 and manufacturing standards are still being formed, hashed out and adopted among the many, many radio manufacturers of the day.<\/p>\n<p>Every radio manufacturer&#8217;s Engineering Department had the &#8220;not-invented-here&#8221; attitude to overcome as well when the industry was trying to standardize things.<\/p>\n<p>Nowadays, after weathering and oxidizing under temp extremes and collecting dirt and dust for 70+ years, they all tend to be a muddled dark-ish blah color that obscures the original colors. Previous repairs from the 30s to 40s may have also introduced a new piece of wire here and there as well, also confusing everything.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[Contributed by Chuck Schwark] From the May, 1934 issue of the\u00a0Philco Serviceman, page 4: COLOR CODE FOR PHILCO WIRING Philco has adopted the standard R.M.S. color code as employed by various other radio manufacturers. This coloring of wires is held wherever possible, and there are only a very few exceptions where the standard coloring is [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":1327,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1362","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/philcoradio.com\/library\/index.php\/wp-json\/wp\/v2\/pages\/1362","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/philcoradio.com\/library\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/philcoradio.com\/library\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/philcoradio.com\/library\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/philcoradio.com\/library\/index.php\/wp-json\/wp\/v2\/comments?post=1362"}],"version-history":[{"count":0,"href":"https:\/\/philcoradio.com\/library\/index.php\/wp-json\/wp\/v2\/pages\/1362\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/philcoradio.com\/library\/index.php\/wp-json\/wp\/v2\/pages\/1327"}],"wp:attachment":[{"href":"https:\/\/philcoradio.com\/library\/index.php\/wp-json\/wp\/v2\/media?parent=1362"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}