{"product_id":"hjw-electronics-choccy-block-terminal-strip-am-mw-radio-kit","title":"HJW Electronics Choccy Block Terminal Strip AM MW Radio Kit CBRK-1","description":"\u003cp\u003eThis is a kit of electronic parts which will allow you to build a MW AM transistor radio using modern parts as detailed on the Useful Components website:\u003cbr\u003e\u003cbr\u003ehttps:\/\/www.usefulcomponents.com\/main_contents\/projects\/choccy_block_trf_radio\/choccy_block_trf_radio.html\u003cbr\u003e\u003cbr\u003eElectronic Parts Included in the Kit\u003cbr\u003e\u003cbr\u003eQty Refs Type Value\u003cbr\u003e\u003cbr\u003e1 VC1 variable capacitor 200PF approx\u003cbr\u003e1 L1 ferrite rod d=9.5mm l=100mm see text\u003cbr\u003e\u003cbr\u003e2 R1,R3 resistor 1K\u003cbr\u003e1 R11 resistor 470R\u003cbr\u003e1 R12 resistor 1.8K\u003cbr\u003e3 R2,R4,R8 resistor 6.8K\u003cbr\u003e1 R7 resistor 12K\u003cbr\u003e1 R9 resistor 27K\u003cbr\u003e3 R5,R14,R15 resistor 47K\u003cbr\u003e1 R10 resistor 100K\u003cbr\u003e1 R6 resistor 330K\u003cbr\u003e2 R13, R16 resistor 220R\u003cbr\u003e\u003cbr\u003e1 VR1, SW1 switched log pot A10K\u003cbr\u003e1 C9 ceramic capacitor 68pF\u003cbr\u003e5 C1,C2,C3,C4,C5 ceramic capacitor 10NF\u003cbr\u003e1 C6 ceramic capacitor 100NF\u003cbr\u003e1 C7 electrolytic capacitor 10UF\u003cbr\u003e1 C8 NP elec capacitor 4.7UF\u003cbr\u003e3 C10,C11,C12 electrolytic capacitor 100UF\u003cbr\u003e\u003cbr\u003e2 D1,D2 diode 1N4148\u003cbr\u003e\u003cbr\u003e1 Q4 NPN audio transistor BC549C\u003cbr\u003e1 Q3 PNP audio transistor BC560C\u003cbr\u003e1 Q5 NPN driver transistor BD139\u003cbr\u003e1 Q6 PNP driver transistor BD140\u003cbr\u003e2 Q1,Q2 NPN RF transistor BF199\u003cbr\u003e\u003cbr\u003eMiscellaneous\u003cbr\u003e\u003cbr\u003e1 SP1 65mm 8R loudspeaker\u003cbr\u003e1 J1 PP3 battery clip\u003cbr\u003e3 3A 12-way terminal strip\u003cbr\u003e2 3A 1-way terminal strip\u003cbr\u003e6 M2.5 bolts 20mm\u003cbr\u003e2 M2.5 bolts 4mm\u003cbr\u003e8 M2.5 washers\u003cbr\u003e6 M2.5 nuts\u003cbr\u003e2 short shaft control knobs\u003cbr\u003e1 orange single core wire 3m\u003cbr\u003e1 yellow single core wire 0.1m\u003cbr\u003e1 red single core wire 0.2m\u003cbr\u003e1 black single core wire 0.2m\u003cbr\u003e1 cardboard box enclosure\u003cbr\u003e\u003cbr\u003eExtras Not Supplied\u003cbr\u003e\u003cbr\u003ePaper glue\u003cbr\u003ePaper\u003cbr\u003eSmall screwdriver\u003cbr\u003eScissors\u003cbr\u003eSticky tape\u003cbr\u003eSmall wire cutters\u003cbr\u003eCraft Knife\u003cbr\u003ePP3 9V Battery\u003cbr\u003e\u003cbr\u003eAll the build information is provided online so that easy updates can be added. Please refresh the page using the F5 key before starting out, just in case an update has been made. There is no paper documentation supplied.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eAll the build information is provided online so that easy updates can be added. Please refresh the page using the F5 key before starting out, just in case an update has been made. There is no paper documentation supplied.\u003cbr\u003e\u003cbr\u003ePeople have had plenty of success with this tried and tested design. If you put the parts in the right places and build as described, you'll have an instant school science project. There are some additional experiments described on the web-page for that bit of extra credit.\u003cbr\u003e\u003cbr\u003eA quicker to build and somewhat more economical plug-in breadboard version that uses the same circuit is available on another listing.\u003c\/p\u003e","brand":"HJW Electronics","offers":[{"title":"Default Title","offer_id":58501255430528,"sku":null,"price":38.9,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/2136\/1280\/files\/cbrk_1_kit_of_parts_s.jpg?v=1784584125","url":"https:\/\/shop.usefulcomponents.com\/products\/hjw-electronics-choccy-block-terminal-strip-am-mw-radio-kit","provider":"HJW Electronics","version":"1.0","type":"link"}