{"product_id":"am-radio-ic-kit-2","title":"AM Radio IC Kit 2","description":"\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0983\/1894\/2578\/files\/am-radio-ic-kit-2-manual.pdf\"\u003eRadio IC Kit 2 Manual\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\n\tThe Radio IC Kit 2 is a simple AM broadcast band receiver kit designed for the TA7642 radio IC. This kit is not\n    a beginners kit. AM Radio IC Kit 2 does require soldering and the ability to read a schematic.\n\u003c\/p\u003e\n\u003cp\u003e\n\tThe audio output can either be connected using the supplied thumb nuts or there are solder points to solder your audio output directly to the board.\n\tThe audio output can be connected directly to a high impedance earphone or headphone. We\n    have tested this kit with magnetic and piezoelectric headsets 2,000 Ohms and higher with good results. The audio\n    output could also be fed directly to an audio amplifier.\n\u003c\/p\u003e\n\u003cp\u003eThe circuit board is approximately 4\" by 4 3\/4\".\u003c\/p\u003e\n\u003cp\u003e\n\tThe Radio IC Kit 2 is a TRF ( Tuned Radio Frequency, Tuned RF ) type receiver. This is the most basic type of radio receiver\n    with no regeneration or re-genitive feedback. The variable capacitor and antenna coil form a “Tank” circuit that\n    tunes the radio stations frequency then the TA7642 amplifies the radio stations radio frequency then “Rectifies”\n    (Converts to Audio) it then amplifies the audio and powers the Earphone.\n\u003c\/p\u003e\n\u003cp\u003e\n\tAM Radio IC Kit 2 includes radio IC TA7642 but the same board and circuit will work with any of the ZN414\n    family of radio IC's. \u003cbr\u003e\n    \u003ca href=\"\/product-category\/components\/integrated-circuits\/radio\/\"\u003eClick here\u003c\/a\u003e to browse our selection of radio\n    IC's.\n\u003c\/p\u003e\n\u003cp\u003e\n\tThe TA7642 radio integrated circuit is based off the ZN414 from the 1970s. There have\n    been several manufactures of replacement integrated circuits for the ZN414. The default\n    radio IC included with the kit is the TA7642. We currently supply several alternate radio\n    integrated circuits; CD7642, MK484, TA7642, UTC7642, and YS414. Any of these can be\n    substituted in the circuit for the TA7642. From our testing and customer feedback, the\n    KM484 (not MK484) has the highest overall gain. However, it tends to fall into oscillation\n    easily. The CD7642, TA7642, UTC7642, and YS414 have a gain just below the MK484.\n\u003c\/p\u003e\n\u003cp\u003e\n\tRadio IC Kit 2 includes a ceramic earphone with wire ends. The Radio IC Kit 2 also has been tested with the\n    following earphones and headphone available separately:\u003c\/p\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCeramic Earphone\u003c\/strong\u003e\u003cbr\u003e\n        Included in this kit. Ceramic earphone with wire ends. Part number CerEar. \u003ca href=\"\/products\/ceramic-earphone\"\u003eClick here for details\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n        \u003cstrong\u003eCeramic Earphone 1\/8\" Plug End\u003c\/strong\u003e\u003cbr\u003e\n        Ceramic earphone with 1\/8\" plug end. Part number CerEar-Plug.\n        \u003ca href=\"\/products\/ceramic-earphones-plug-ends\"\u003eClick here for details\u003c\/a\u003e\u003cbr\u003e\n        \u003ca href=\"\/products\/1-8-inch-phone-jack\"\u003eClick here for 1\/8\" jack\u003c\/a\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n        \u003cstrong\u003ePiezoelectric High Impedance Ceramic Headphone\u003c\/strong\u003e\n        The Piezoelectric High Impedance Ceramic Headphones. Part number CERHEAD2.\n        \u003ca href=\"\/products\/piezoelectric-high-impedance-ceramic-headphone-2\"\u003eClick here for details\u003c\/a\u003e\u003cbr\u003e\n        \u003ca href=\"\/products\/mono-1-4-phone-jack\"\u003eClick here for 1\/4\" jack\u003c\/a\u003e\n    \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\n\u003cstrong\u003eParts List\u003c\/strong\u003e\u003cbr\u003e\n1 - Circuit Board\u003cbr\u003e\n1 - \u003ca href=\"\/products\/180uh-loopstick-antenna-coil\"\u003e180uh ferrite loopstick antenna\u003c\/a\u003e\u003cbr\u003e\n1 - \u003ca href=\"\/products\/variable-capacitor-266pf\"\u003ePlastic variable capacitor dual section 266pf\u003c\/a\u003e\u003cbr\u003e\n1 - \u003ca href=\"\/products\/ta7642-am-radio-ic\"\u003eTA7642 radio IC\u003c\/a\u003e\u003cbr\u003e\n2 - \u003ca href=\"\/products\/100k-1-4-watt-carbon-film-resistor\"\u003e100K resistors (brown black yellow gold)\u003c\/a\u003e\u003cbr\u003e\n1 - 470 Ohm Resistor (yellow violet brown gold)\u003cbr\u003e\n1 - 0.01uf Capacitor (marked 103)\u003cbr\u003e\n1 - \u003ca href=\"\/products\/0-1uf-capacitor\"\u003e0.1uf capacitor (marked 104)\u003c\/a\u003e\u003cbr\u003e\n1 - 10uf Capacitor\u003cbr\u003e\n1 - \u003ca href=\"\/products\/ceramic-earphone\"\u003eCeramic earphone\u003c\/a\u003e\u003cbr\u003e\n1 - \u003ca href=\"\/products\/potentiometer-switch-2k\"\u003e2K variable resistor with switch\u003c\/a\u003e\u003cbr\u003e\n1 - \u003ca href=\"\/products\/knob-20\"\u003e20.3mm variable capacitor knob\u003c\/a\u003e\u003cbr\u003e\n1 - \u003ca href=\"\/products\/shaft12\"\u003e12mm variable capacitor shaft and screw\u003c\/a\u003e\u003cbr\u003e\n1 - Variable resistor knob\u003cbr\u003e\n1 - AA battery holder with screw\u003cbr\u003e\n6 - \u003ca href=\"\/products\/brass-4-40-screw-3-8\"\u003eBrass #4 3\/8\" panhead screws\u003c\/a\u003e\u003cbr\u003e\n2 - \u003ca href=\"\/products\/brass-4-40-screw-1-2\"\u003eBrass #4 1\/2\" panhead screws\u003c\/a\u003e\u003cbr\u003e\n4 - \u003ca href=\"\/products\/brass-4-40-nut\"\u003eBrass #4 nuts\u003c\/a\u003e\u003cbr\u003e\n4 - \u003ca href=\"\/products\/brass-4-washer\"\u003eBrass #4 washers\u003c\/a\u003e\u003cbr\u003e\n2 - \u003ca href=\"\/products\/brass-4-40-thumbnut\"\u003eBrass #4 thumb nuts\u003c\/a\u003e\u003cbr\u003e\n4 - Nylon feet\u003cbr\u003e\n2 - Coil clamps\u003cbr\u003e\n1 - approximately 6\" pretinned wire\u003cbr\u003e\n\u003c\/p\u003e\n","brand":"Atomic 29","offers":[{"title":"Default Title","offer_id":61983951520114,"sku":"AMRIK-2","price":35.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0983\/1894\/2578\/files\/am-radio-ic-kit-2-1.jpg?v=1782564647","url":"https:\/\/atomic-29.com\/products\/am-radio-ic-kit-2","provider":"Atomic 29","version":"1.0","type":"link"}