{"id":241,"date":"2013-09-12T19:14:07","date_gmt":"2013-09-12T17:14:07","guid":{"rendered":"http:\/\/www.verelec.nl\/?page_id=241"},"modified":"2013-09-12T19:16:37","modified_gmt":"2013-09-12T17:16:37","slug":"champ-5c15f1","status":"publish","type":"page","link":"https:\/\/www.verelec.nl\/?page_id=241","title":{"rendered":"Champ 5C1\/5F1"},"content":{"rendered":"

Probably the best amp I ever built:). By coincidence I found an old 6SJ7 (metal penthode) tube in our local army dumpstore. I knew I had seen a schematic once before in the past. After some digging around I found the Fender(TM) 5C1 schematic. I had a bunch of old power and old output\u00a0 transformers so I decided to build a small 5W amp containing the 5C1 AND the 5F1 schematic. The power transformer was from an old tube radio. The output transformer I got from an aquaintance who said this was a very good output transformer (and he was right). As for the rest, jus a bunch of old components I had. Made an experimental chassis to play around with and started experimenting. And damn it sounded great. So time to build a permanent version. Brother in Law made a chassis from zinc plated steel. Used a simple strip board for the parts. Used the cheapest poplar wood I could find. The grille is made from a left over piece of brass with a simple square pattern in it. Polihed it with brass polish and sprayed it with 4-5 layers of clear laquer. The cabinet is lacquered with 3 layers of boat varnish. The only thing that was most expensive was the faceplate (lasered).<\/p>\n

Some pictures of the prototyping and finished product<\/p>\n

\"11020050\"<\/a> \"11020051\"<\/a> \"11020052\"<\/a> \"11020053\"<\/a> \"11020054\"<\/a><\/p>\n

\"12110026\"<\/a> \"12110025\"<\/a><\/p>\n

\"12110024\"<\/a> \"12110023\"<\/a><\/p>\n

The speaker is a Jensen P10R (Alnico)<\/p>\n

Here are some clips:<\/p>\n

Clean 5C1<\/a><\/p>\n

Full volume 5C1<\/a><\/p>\n

Clean 5F1<\/a><\/p>\n

Full volume 5F1<\/a><\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Probably the best amp I ever built:). By coincidence I found an old 6SJ7 (metal penthode) tube in our local army dumpstore. I knew I had seen a schematic once before in the past. After some digging around I found … Lees verder →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":238,"menu_order":0,"comment_status":"open","ping_status":"open","template":"","meta":{"footnotes":""},"_links":{"self":[{"href":"https:\/\/www.verelec.nl\/index.php?rest_route=\/wp\/v2\/pages\/241"}],"collection":[{"href":"https:\/\/www.verelec.nl\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.verelec.nl\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.verelec.nl\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.verelec.nl\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=241"}],"version-history":[{"count":3,"href":"https:\/\/www.verelec.nl\/index.php?rest_route=\/wp\/v2\/pages\/241\/revisions"}],"predecessor-version":[{"id":257,"href":"https:\/\/www.verelec.nl\/index.php?rest_route=\/wp\/v2\/pages\/241\/revisions\/257"}],"up":[{"embeddable":true,"href":"https:\/\/www.verelec.nl\/index.php?rest_route=\/wp\/v2\/pages\/238"}],"wp:attachment":[{"href":"https:\/\/www.verelec.nl\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=241"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}