{"id":465,"date":"2018-06-20T15:57:29","date_gmt":"2018-06-20T15:57:29","guid":{"rendered":"http:\/\/www.ptcaviation.com\/wordpress\/?page_id=465"},"modified":"2018-06-20T15:57:29","modified_gmt":"2018-06-20T15:57:29","slug":"pi-filter","status":"publish","type":"page","link":"https:\/\/www.ptcaviation.com\/wordpress\/pi-filter\/","title":{"rendered":"PI filter"},"content":{"rendered":"

This is a PI filter I built to correct noise in the audio system after I installed two LED landing lights on my RV-4. I used a small piece of fiberglass for a circuit board. You will have to build one for each light and mount it as close to the light as practical. The lights I used ( see below ) only required 1 amp so the inductor I used is rated up to 1.6 amp. If your light requires more current then you will need to use an inductor with a higher rating. I purchased the components from Digikey.com. I used a post on Vansairforce by Dean Wilkinson as the genesis for this.<\/p>\n

Item          Qty    P\/N                                            Desc                                                             cost each<\/p>\n

C1 & C2       2       445-173261-1-ND<\/a>          CAP CER 1UF 25V X7R RADIAL                  $0.32<\/p>\n

C3                1         1189-1583-1-ND<\/a>           CAP ALUM 1000UF 20% 25V RADIAL       $0.64<\/p>\n

L1                 1        732-4206-ND<\/a>                 FIXED IND 100UH 1.6A 190 MOHM TH   $2.46<\/p>\n

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

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

This is a PI filter I built to correct noise in the audio system after I installed two LED landing lights on my RV-4. I used a small piece of fiberglass for a circuit board. You will have to build one for each light and mount it as close to the light as practical. The lights…<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"ngg_post_thumbnail":0,"footnotes":""},"class_list":["post-465","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.ptcaviation.com\/wordpress\/wp-json\/wp\/v2\/pages\/465","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ptcaviation.com\/wordpress\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.ptcaviation.com\/wordpress\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.ptcaviation.com\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ptcaviation.com\/wordpress\/wp-json\/wp\/v2\/comments?post=465"}],"version-history":[{"count":3,"href":"https:\/\/www.ptcaviation.com\/wordpress\/wp-json\/wp\/v2\/pages\/465\/revisions"}],"predecessor-version":[{"id":471,"href":"https:\/\/www.ptcaviation.com\/wordpress\/wp-json\/wp\/v2\/pages\/465\/revisions\/471"}],"wp:attachment":[{"href":"https:\/\/www.ptcaviation.com\/wordpress\/wp-json\/wp\/v2\/media?parent=465"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}