{"title":"Circuit Classics: Dual LED Flasher","handle":"circuit-classics-dual-led-flasher","url":"/products/circuit-classics-dual-led-flasher","description":"A rewarding first soldering project that brings one of Forrest M. Mims III's classic hand-drawn circuits to life. With just nine components, you'll build a satisfying dual LED flasher that blinks alternately — a great introduction to the analog side of electronics.\n\nDesigned by Star Simpson as part of the Circuit Classics series, this beautifully crafted PCB pairs Mims' iconic circuit designs with exquisite board artwork. It makes a perfect gift for a first-time learner, an expert tinkerer, or as a conversation piece for your desk.\n\nKey Features\n\n\nBeginner Friendly – Only nine through-hole components to solder\n\nClassic Circuit Design – Based on Forrest M. Mims III's iconic hand-drawn schematics\n\nBeautiful PCB Artwork – Finely crafted board designed for display\n\nIncludes Display Stand – Wooden stand for showing off your finished project\n\nFlexible Power Options – Use alligator clips with any battery/power supply, or solder the included SMT coin cell clip\n\n\nAssembly Overview\n\nAssemble components from shortest to tallest: resistors first, then transistors, capacitors, and LEDs\nUse the included wooden stand to hold the board at an angle while soldering\nAttach the SMT battery clip to the reverse side as a final step\nClean flux residue with the included alcohol pad for a polished finish\n\n\n\nTip: Batteries are not included. Use alligator clips with a battery or power supply of your choice, or solder the SMT battery clip and use a 3V CR2032 coin cell or two CR2016 cells (6V stack).\n\n\nRequired Tools (Not Included)\n\nSoldering iron\nSolder wire\n\nThird hands (optional, for holding the board)\n\n\nPackage Contents\n\n1× Dual LED Flasher PCB\n2× 2N3906 Transistors\n2× 100kΩ Resistors\n2× 220Ω Resistors\n2× White LEDs\n2× 22μF Electrolytic Capacitors\n1× SMT Battery Clip\n1× Red Alligator Clip\n1× Black Alligator Clip\n1× Alcohol Prep Pad\n4× Rubber Feet\n1× Wooden Display Stand\n","vendor":"Pimoroni","product_type":"physical","in_stock":false,"options":[],"variants":[{"id":7525,"title":"Default Title","sku":"PI-CCL003","price":71.9,"on_sale":false,"in_stock":false,"available_quantity":0,"option1":"Default Title"}]}