{"id":130,"date":"2011-12-11T22:46:15","date_gmt":"2011-12-11T22:46:15","guid":{"rendered":"http:\/\/192.168.50.22\/index.php\/2011\/12\/11\/am-radio-mp3-mod\/"},"modified":"2026-03-18T21:24:09","modified_gmt":"2026-03-19T01:24:09","slug":"am-radio-mp3-mod","status":"publish","type":"post","link":"https:\/\/smegnl.medina.oh.us\/?p=130","title":{"rendered":"AM Radio MP3 Mod"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><span style=\"font-size: medium;\">Going to try and modify my mono AM radio to take a mp3 input and output stereo. In addition, I want it to light up, turn on and off with the existing knob, and control the volume with the existing knob. This should be fun.<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-size: medium;\">&nbsp;<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-size: medium;\">Here are some before pics of the radio.<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-size: medium;\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"256\" class=\"alignnone size-full wp-image-2705\" src=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/before.jpg.webp\" alt=\"\" srcset=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/before.jpg.webp 300w, https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/before.jpg-100x85.webp 100w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><br> <img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"184\" class=\"alignnone size-full wp-image-2723\" src=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/front.jpg.webp\" alt=\"\" srcset=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/front.jpg.webp 300w, https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/front.jpg-100x61.webp 100w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><br> <\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-size: medium;\"><br> Click above for a video of the inside and the tuner moving, (wmv)<\/span><\/p>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile\"><figure class=\"wp-block-media-text__media\"><\/figure><div class=\"wp-block-media-text__content\">\n<p class=\"wp-block-paragraph\"><\/p>\n<\/div><\/div>\n\n\n\n<figure class=\"wp-block-video\"><video height=\"240\" style=\"aspect-ratio: 320 \/ 240;\" width=\"320\" controls src=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/tuner.wmv\"><\/video><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-size: medium;\">I took it apart in order to get to the on\/off\/volume knob. Was a little tricky, the thing is built like an airplane black box.<\/span><\/p>\n\n\n\n<figure class=\"wp-block-image alignnone\"><a href=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/largeap2.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" src=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/apart2.jpg.webp\" alt=\"\" class=\"wp-image-2702\" srcset=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/apart2.jpg.webp 300w, https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/apart2.jpg-100x75.webp 100w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption class=\"wp-element-caption\">(Click for large view)<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"212\" src=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/apart.jpg.webp\" alt=\"\" class=\"wp-image-2699\" srcset=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/apart.jpg.webp 300w, https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/apart.jpg-100x71.webp 100w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-size: medium;\">&nbsp;<\/span><\/p>\n\n\n\n<figure class=\"wp-block-table aligncenter\"><table class=\"has-fixed-layout\"><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><figure><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2774\" src=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/rs3-68x100.jpg.webp\" alt=\"\" width=\"68\" height=\"100\"><\/figure><\/td><td class=\"has-text-align-center\" data-align=\"center\"><figure><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2771\" src=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/rs2-1-100x98.jpg.webp\" alt=\"\" width=\"100\" height=\"98\"><\/figure><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-size: medium;\">This is the volume\/on\/off switch that I was after. It is a Philco. The part number is &#8220;P\/F 3L3-005-05 Philco DJ K9&#8221;. I do not think I will find some 40yr old documentation on it.<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-size: medium;\">2011-12-12 Looked around today and yep, can not find squat on it. Probably going to have to cut it out and try to measure the pin out.<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-size: medium;\">&nbsp;<\/span><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-size: medium;\">&nbsp;<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-size: medium;\">Since I had no luck finding the information on the volume control, I decided to just gut the parts of the radio I did not need and unsolder the knob form its board. That way I can use a multi-meter to map it out.<br>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2708\" src=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/cleanparts.jpg.webp\" alt=\"\" width=\"300\" height=\"255\" srcset=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/cleanparts.jpg.webp 300w, https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/cleanparts.jpg-100x85.webp 100w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><br>\nBare Essentials -Click for large view<\/span><\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><span style=\"font-size: medium;\">&nbsp;<\/span><\/p>\n\n\n\n<figure class=\"wp-block-table aligncenter\"><table class=\"has-fixed-layout\"><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><span style=\"font-size: medium;\"><figure><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2748\" src=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/pot2.jpg.webp\" alt=\"\" width=\"150\" height=\"206\" srcset=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/pot2.jpg.webp 150w, https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/pot2.jpg-73x100.webp 73w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/figure><\/span><\/td><td class=\"has-text-align-center\" data-align=\"center\"><span style=\"font-size: medium;\"><figure><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2751\" src=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/pot3.jpg.webp\" alt=\"\" width=\"150\" height=\"231\" srcset=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/pot3.jpg.webp 150w, https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/pot3.jpg-65x100.webp 65w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/figure><\/span><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><span style=\"font-size: medium;\">The knob removed from the circuit board<\/span><\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><span style=\"font-size: medium;\">&nbsp;<\/span><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-size: medium;\">2011-12-13 Results not good for the volume control. I put a meter on it today. Turns out that it is indeed mono. It is three separate&nbsp;pots. One for power, one for volume, and one for treble. I can not run stereo thru the mono volume part. I will need to go back to the drawing board.<\/span><\/p>\n\n\n\n<figure class=\"wp-block-image alignnone wp-image-2745 size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"365\" src=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/pot.jpg.webp\" alt=\"\" class=\"wp-image-2745\" srcset=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/pot.jpg.webp 500w, https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/pot.jpg-100x73.webp 100w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><figcaption class=\"wp-element-caption\">Meter Reading on volume pot<\/figcaption><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-size: medium;\">&nbsp;<\/span><\/p>\n\n\n\n<p class=\"has-text-align-left wp-block-paragraph\"><span style=\"font-size: medium;\">After doing some research I found that a car amp takes between 0.2 V and 5V for a &#8220;Line in&#8221; input. My current MP3 player puts out around 0.5 to 1V. Therefore, i need to preamp the signal to get it closer to the 5V range, and to give it some signal to run thru whatever volume control I come up with. (still looking for a radio stereo knob). After HOURS of searching the net, i found this. It will amp up to 10X (2.8V). I could not find any dimensions I hope it will fit inside the radio chassis.<\/span><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"679\" height=\"590\" src=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/LD10preamp.jpg.webp\" alt=\"\" class=\"wp-image-2785\" srcset=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/LD10preamp.jpg.webp 679w, https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/LD10preamp.jpg-100x87.webp 100w\" sizes=\"auto, (max-width: 679px) 100vw, 679px\" \/><\/figure>\n\n\n\n<p class=\"has-text-align-left wp-block-paragraph\"><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-size: medium;\">&nbsp;<\/span><\/p>\n\n\n\n<p class=\"has-text-align-left wp-block-paragraph\"><span style=\"font-size: medium;\">Well Some good news!! My dad had an old FM radio that was in his motorcycle. I took out the FM volume control.<\/span><\/p>\n\n\n\n<figure class=\"wp-block-image alignnone wp-image-2736 size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"339\" src=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/oldfm.jpg.webp\" alt=\"\" class=\"wp-image-2736\" srcset=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/oldfm.jpg.webp 300w, https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/oldfm.jpg-88x100.webp 88w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><figcaption class=\"wp-element-caption\">Old FM Radio<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image alignnone wp-image-2739 size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"286\" src=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/oldfm2.jpg.webp\" alt=\"\" class=\"wp-image-2739\" srcset=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/oldfm2.jpg.webp 300w, https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/oldfm2.jpg-100x95.webp 100w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><figcaption class=\"wp-element-caption\">Inside FM Radio<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image alignnone wp-image-2717 size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"133\" src=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/fmpot.jpg.webp\" alt=\"\" class=\"wp-image-2717\" srcset=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/fmpot.jpg.webp 300w, https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/fmpot.jpg-100x44.webp 100w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><figcaption class=\"wp-element-caption\">FM radio volume pot<span style=\"font-size: medium;\">\u00a0<\/span><\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image alignnone wp-image-2696 size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"291\" src=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/2pots.jpg.webp\" alt=\"\" class=\"wp-image-2696\" srcset=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/2pots.jpg.webp 300w, https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/2pots.jpg-100x97.webp 100w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><figcaption class=\"wp-element-caption\">Old an New volume pot<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image alignnone wp-image-2727 size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"270\" src=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/inside2.jpg.webp\" alt=\"\" class=\"wp-image-2727\" srcset=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/inside2.jpg.webp 300w, https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/inside2.jpg-100x90.webp 100w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><figcaption class=\"wp-element-caption\">Volume pot inside radio<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image alignnone wp-image-2720 size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"306\" src=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/fmpotin.jpg.webp\" alt=\"\" class=\"wp-image-2720\" srcset=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/fmpotin.jpg.webp 300w, https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/fmpotin.jpg-98x100.webp 98w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><figcaption class=\"wp-element-caption\">Close up of pot in radio<\/figcaption><\/figure>\n\n\n\n<p class=\"has-text-align-left wp-block-paragraph\"><span style=\"font-size: medium;\">After taking the Pot out of the radio, I painted the case, the AM needle, the Plate behind the needle.. I then put the FM pot into the AM radio. I put the knobs on the AM and FM pots. It matches up very well.<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image alignnone wp-image-2742 size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"550\" height=\"271\" src=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/painted.jpg.webp\" alt=\"\" class=\"wp-image-2742\" srcset=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/painted.jpg.webp 550w, https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/painted.jpg-100x49.webp 100w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><figcaption class=\"wp-element-caption\">Painted and front assembled<span style=\"font-size: medium;\">\u00a0<\/span><\/figcaption><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-size: medium;\">&nbsp;<\/span><\/p>\n\n\n\n<p class=\"has-text-align-left wp-block-paragraph\"><span style=\"font-size: medium;\">Believe it or not, it works!!! Got the switch wired to the pre-amp, addes some power and wala&#8230;AM stereo MP3 player.<\/span><\/p>\n\n\n\n<figure class=\"wp-block-image alignnone wp-image-2711 size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"375\" src=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/done1.jpg.webp\" alt=\"\" class=\"wp-image-2711\" srcset=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/done1.jpg.webp 500w, https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/done1.jpg-100x75.webp 100w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><figcaption class=\"wp-element-caption\">Everything in and wired up<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image alignnone wp-image-2754 size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"375\" src=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/preampin.jpg.webp\" alt=\"\" class=\"wp-image-2754\" srcset=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/preampin.jpg.webp 500w, https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/preampin.jpg-100x75.webp 100w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><figcaption class=\"wp-element-caption\">PreAmp board<span style=\"font-size: medium;\">\u00a0<\/span><\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image alignnone wp-image-2761 size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"375\" src=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/switch.jpg.webp\" alt=\"\" class=\"wp-image-2761\" srcset=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/switch.jpg.webp 500w, https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/switch.jpg-100x75.webp 100w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><figcaption class=\"wp-element-caption\">Switch all wired up<span style=\"font-size: medium;\">\u00a0<\/span><\/figcaption><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<figure class=\"wp-block-image alignnone wp-image-2730 size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"375\" src=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/mes.jpg.webp\" alt=\"\" class=\"wp-image-2730\" srcset=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/mes.jpg.webp 500w, https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/mes.jpg-100x75.webp 100w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><figcaption class=\"wp-element-caption\">Messy but done<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image alignnone wp-image-2788 size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"375\" src=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/Run1-1.jpg.webp\" alt=\"\" class=\"wp-image-2788\" srcset=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/Run1-1.jpg.webp 500w, https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/Run1-1.jpg-100x75.webp 100w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><figcaption class=\"wp-element-caption\">Test run and it WORKED!!<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image alignnone wp-image-2757 size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"375\" src=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/side1.jpg.webp\" alt=\"\" class=\"wp-image-2757\" srcset=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/side1.jpg.webp 500w, https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/side1.jpg-100x75.webp 100w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><figcaption class=\"wp-element-caption\">Outputs<span style=\"font-size: medium;\">\u00a0<\/span><\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image alignnone wp-image-2760 size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"375\" src=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/side2.jpg.webp\" alt=\"\" class=\"wp-image-2760\" srcset=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/side2.jpg.webp 500w, https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/side2.jpg-100x75.webp 100w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><figcaption class=\"wp-element-caption\">Inputs<span style=\"font-size: medium;\">\u00a0<\/span><\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image alignnone wp-image-2764 size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"375\" src=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/together.jpg.webp\" alt=\"\" class=\"wp-image-2764\" srcset=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/together.jpg.webp 500w, https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/together.jpg-100x75.webp 100w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><figcaption class=\"wp-element-caption\">All done<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image alignnone wp-image-2714 size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"375\" src=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/done9.jpg.webp\" alt=\"\" class=\"wp-image-2714\" srcset=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/done9.jpg.webp 500w, https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/done9.jpg-100x75.webp 100w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><figcaption class=\"wp-element-caption\">Final test run<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"625\" height=\"539\" src=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/MP3AM.jpg.webp\" alt=\"\" class=\"wp-image-2733\" srcset=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/MP3AM.jpg.webp 625w, https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/MP3AM.jpg-100x86.webp 100w\" sizes=\"auto, (max-width: 625px) 100vw, 625px\" \/><\/figure>\n\n\n\n<p class=\"has-text-align-left wp-block-paragraph\"><span style=\"font-size: medium;\"> <\/span><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-size: medium;\">2011-12-21<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-size: medium;\">New knobs are here and on the radio, so that makes it officially done.<br>\n<\/span><span style=\"font-size: medium;\"> <img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2693\" src=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/final.jpg\" alt=\"\" width=\"625\" height=\"352\" srcset=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/final.jpg 625w, https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/final-100x56.jpg 100w\" sizes=\"auto, (max-width: 625px) 100vw, 625px\" \/><\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-size: medium;\">Overall I am really happy with the outcome. I accomplished my goal of having an MP3 Stereo player in the Maverick without changing the look of the AM radio. There are a couple things that did not come out like I wanted. The Stereo Pot that I put in is a little high in resistance. Thus I really get no sound in the first 25% of the knob movement. I chose a bad spot to put the input on the side of the radio. Lastly, I have no fader control, or L to R, on the radio knob. There is an internal adjustment on the preAmp.However, this did allow me to use some new Cougar knobs (pictured above). The fader knobs do not exactly fit, but since mine do not work anyway, it doesn&#8217;t mater. They still look good.<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-size: medium;\">&nbsp;&#8212;&#8212;-<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Just and update:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">I finally mounted the radio in the Maverick and added a Bluetooth in the ashtray.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image alignnone wp-image-2794 size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"342\" src=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/mounted-768x342.png.webp\" alt=\"\" class=\"wp-image-2794\" srcset=\"https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/mounted-768x342.png.webp 768w, https:\/\/smegnl.medina.oh.us\/wp-content\/uploads\/2026\/03\/mounted-768x342.png-100x45.webp 100w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><figcaption class=\"wp-element-caption\">Mounted<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Going to try and modify my mono AM radio to take a mp3 input and output stereo. In addition, I want it to light up, turn on and off with the existing knob, and control the volume with the existing knob. This should be fun. &nbsp; Here are some before pics of the radio. Click [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2794,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14],"tags":[],"class_list":["post-130","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-maverick"],"_links":{"self":[{"href":"https:\/\/smegnl.medina.oh.us\/index.php?rest_route=\/wp\/v2\/posts\/130","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/smegnl.medina.oh.us\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/smegnl.medina.oh.us\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/smegnl.medina.oh.us\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/smegnl.medina.oh.us\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=130"}],"version-history":[{"count":4,"href":"https:\/\/smegnl.medina.oh.us\/index.php?rest_route=\/wp\/v2\/posts\/130\/revisions"}],"predecessor-version":[{"id":3191,"href":"https:\/\/smegnl.medina.oh.us\/index.php?rest_route=\/wp\/v2\/posts\/130\/revisions\/3191"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/smegnl.medina.oh.us\/index.php?rest_route=\/wp\/v2\/media\/2794"}],"wp:attachment":[{"href":"https:\/\/smegnl.medina.oh.us\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=130"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/smegnl.medina.oh.us\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=130"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/smegnl.medina.oh.us\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=130"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}