{"product_id":"pioneer-sx-838-stereo-receiver-50w-rms-fully-serviced-and-recapped-copy","title":"Pioneer SX-939 Stereo Receiver * 70W RMS * Fully Serviced and Recapped *","description":"\u003ch1 class=\"title\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0673\/9204\/5301\/files\/ServiceReceivers.png?v=1775406912\" alt=\"\"\u003e\u003c\/h1\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0673\/9204\/5301\/files\/A_million_ac724e73-c218-4c09-b403-3f03854fce4a.png?v=1775407815\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch1 class=\"title\"\u003ePioneer SX-939\u003c\/h1\u003e\n\u003cp\u003eAM\/FM Stereo Receiver (1974-76)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSerial No. VK3920227M (manufactured November 1975).\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eCondition: Good – deep scratch on top of front panel. \u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eServiced: 2024 at Mort’s in Levittown, PA\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003ePower supply board – some capacitors replaced. \u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003ePower amplifier – some capacitors replaced. \u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eFM Tuner – some transistors replaced and re-aligned. \u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eSwitches and potentiometers cleaned.  \u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eNew mechanism installed in original speaker protection relay housing. \u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eLEDs installed at meters and dial.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"model_main_image\"\u003e\u003ca href=\"https:\/\/www.hifiengine.com\/images\/model\/pioneer_sx-939_am-fm_stereo_receiver.jpg\"\u003e\n\u003cdiv class=\"model_main_image_inner\"\u003e\u003cimg src=\"https:\/\/www.hifiengine.com\/images\/model\/pioneer_sx-939.jpg\" alt=\"Pioneer SX-939\" loading=\"lazy\" width=\"300\" height=\"142\"\u003e\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"mod-images-add\"\u003e\u003c\/div\u003e\n\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003eThe Pioneer SX-939 is a highly versatile, big powered FM\/MW stereo receiver.\u003c\/p\u003e\n\u003cp\u003eThe unit features a parallel push pull OCL power amplifier with less than 0.3% total harmonic distortion, a completely new PLL MPX circuit, frequency linear 4-gang variable capacitor and a newly developed IC AM.\u003c\/p\u003e\n\u003cp\u003eIt also has a twin control system and duplication switch, and Dolby adapter in\/out terminals with switch.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cp\u003eTuning range: FM, MW\u003c\/p\u003e\n\u003cp\u003ePower output: 70 watts per channel into 8Ω (stereo)\u003c\/p\u003e\n\u003cp\u003eFrequency response: 10Hz to 40kHz\u003c\/p\u003e\n\u003cp\u003eTotal harmonic distortion: 0.3%\u003c\/p\u003e\n\u003cp\u003eDamping factor: 45\u003c\/p\u003e\n\u003cp\u003eInput sensitivity: 2mV (mic), 2.5mV (MM), 150mV (DIN), 150mV (line)\u003c\/p\u003e\n\u003cp\u003eSignal to noise ratio: 65dB (mic), 70dB (MM), 95dB (line)\u003c\/p\u003e\n\u003cp\u003eOutput: 150mV (line), 30mV (DIN), 1V (Pre out)\u003c\/p\u003e\n\u003cp\u003eSpeaker load impedance: 4Ω (minimum)\u003c\/p\u003e\n\u003cp\u003eSemiconductors: 3 x FET, 4 x IC, 57 x transistors, 39 x diodes\u003c\/p\u003e\n\u003cp\u003eDimensions: 520 x 175 x 420mm\u003c\/p\u003e\n\u003cp\u003eWeight: 18.5kg\u003c\/p\u003e\n\u003cp\u003eAccessories: FM T-type antenna\u003c\/p\u003e","brand":"Pioneer","offers":[{"title":"Default Title","offer_id":50456507351285,"sku":null,"price":900.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0673\/9204\/5301\/files\/DSC_0342_1603020c-d171-4e9b-8be5-be239bb69619.jpg?v=1790265150","url":"https:\/\/www.theturntablestore.com\/products\/pioneer-sx-838-stereo-receiver-50w-rms-fully-serviced-and-recapped-copy","provider":"The Turntable Store","version":"1.0","type":"link"}