{"product_id":"kit-ece-lab-kit-24-audio-amplifier-design-lab","title":"ECE Lab Kit 24 Audio Amplifier Design Lab","description":"\u003ch1\u003eECE Lab Kit 24 Audio Amplifier Design Lab — Compare Efficiency and Distortion Across Class A, B \u0026amp; AB\u003c\/h1\u003e\n\n\u003cp class=\"value-summary\"\u003eEvery part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.\u003c\/p\u003e\n\n\u003cdiv class=\"specs-strip\"\u003e\n  \u003cspan\u003e\u003cstrong\u003eDifficulty:\u003c\/strong\u003e Intermediate\u003c\/span\u003e\n  \u003cspan\u003e\u003cstrong\u003eBuild Time:\u003c\/strong\u003e 3-4 hours\u003c\/span\u003e\n  \u003cspan\u003e\u003cstrong\u003eAge:\u003c\/strong\u003e 15-21\u003c\/span\u003e\n  \u003cspan\u003e\u003cstrong\u003eSkill:\u003c\/strong\u003e Audio amplifier characterization\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eThis lab kit puts the theory of power amplifiers into practice. You’ll build Class A, Class B, and Class AB audio amplifiers on a single breadboard, inject an audio signal, and measure how each converts DC power into sound — observing crossover distortion, efficiency limits, and heat dissipation in real time. Perfect for ECE lab sessions or a deep-dive project on analog electronics.\u003c\/p\u003e\n\n\u003ch2\u003eWhat You'll Build\u003c\/h2\u003e\n\u003cp\u003eA working audio amplifier system that lets you switch between three fundamental topologies. You’ll wire discrete transistor circuits for Class A (single-ended with constant bias current), a push-pull Class B pair, and a diode-biased Class AB that eliminates crossover distortion. The kit includes an 8-ohm speaker and dual power supply so you can hear the sonic differences and record current draw to calculate true efficiency under load.\u003c\/p\u003e\n\n\u003ch2\u003eWhat You'll Learn\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigning and biasing a Class A transistor amplifier for linear operation.\u003c\/li\u003e\n  \u003cli\u003eBuilding a complementary push-pull Class B stage and identifying crossover distortion on an oscilloscope.\u003c\/li\u003e\n  \u003cli\u003eAdding diode biasing to convert Class B to Class AB and quantifying the reduction in THD.\u003c\/li\u003e\n  \u003cli\u003eMeasuring amplifier efficiency (power out vs. DC power in) at different signal levels for each class.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eKit Contents\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eComponent\u003c\/th\u003e\n\u003cth\u003eQuantity\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eBC547 Transistors\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eBC557 Transistors\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTIP31C NPN\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTIP32C PNP\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e10kΩ Resistors\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e1kΩ Resistors\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e100µF Caps\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSpeaker 8Ω\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eHalf Breadboard\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDual PSU\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM-M Wires\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhy Buy This Kit Instead of Sourcing Parts Separately\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFactor\u003c\/th\u003e\n\u003cth\u003eSourcing Separately\u003c\/th\u003e\n\u003cth\u003eCompoden Kit\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCompatibility checks\u003c\/td\u003e\n\u003ctd\u003eYou verify every part\u003c\/td\u003e\n\u003ctd\u003ePre-tested as a system\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eBuild support\u003c\/td\u003e\n\u003ctd\u003eForums and scattered tutorials\u003c\/td\u003e\n\u003ctd\u003eAI companion trained on this exact project\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTime to first working build\u003c\/td\u003e\n\u003ctd\u003eDays of debugging\u003c\/td\u003e\n\u003ctd\u003eHours, with step-by-step guidance\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eShipping coordination\u003c\/td\u003e\n\u003ctd\u003eMultiple sellers, multiple delays\u003c\/td\u003e\n\u003ctd\u003eOne shipment from Bengaluru in 3-5 days\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWho This Kit Is For\u003c\/h2\u003e\n\u003cp\u003eIdeal for B.Tech ECE\/EEE students tackling analog electronics lab courses (VTU, AKTU, Anna University, and autonomous colleges) who need to demonstrate Class A, B, and AB amplifier performance. Also used by CBSE Class 12 students exploring transistor amplifiers for physics projects, and by ATL Tinkering Labs running workshops on audio electronics. If you’re preparing for Smart India Hackathon hardware challenge or just want to deeply understand audio power amps, this kit gives you the exact breadboard experiment.\u003c\/p\u003e\n\n\u003ch2\u003eBuilt and Backed by Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We’ve spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.\u003c\/p\u003e\n\n\u003cdetails\u003e\u003csummary\u003eWhat if I get stuck during the build?\u003c\/summary\u003e\u003cp\u003eOur AI build companion walks you through every connection, and our WhatsApp support responds within hours. Scan the QR code, describe your issue, and you’ll get debugging steps specific to this amplifier lab.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I measure efficiency and distortion without an oscilloscope?\u003c\/summary\u003e\u003cp\u003eYes — the AI companion shows you how to use the dual PSU’s current display and a smartphone audio spectrum app to estimate efficiency and observe crossover distortion qualitatively. For precise THD numbers, a basic DSO is recommended, but the learning can be done with the tools in the kit.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this kit aligned with university ECE lab curricula?\u003c\/summary\u003e\u003cp\u003eAbsolutely. The experiment sequence mirrors the “Power Amplifiers” lab session in most Indian universities including VTU (15ECL38), AKTU (KEC-351), and Anna University (EC8461). You can submit readings and waveforms directly from your build log.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes the kit include a signal source to test the amplifiers?\u003c\/summary\u003e\u003cp\u003eThe kit relies on an external audio source — any smartphone with a 3.5 mm jack or a function generator app works perfectly. The AI companion guides you through connecting the line-out to the amplifier input using the breadboard wires.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003cdiv class=\"kit-description\"\u003e\n  \u003cp\u003eClass A, Class B and Class AB audio amplifier circuits built on breadboard — compare efficiency and distortion.\u003c\/p\u003e\n  \u003ch4\u003eWhat's in this kit\u003c\/h4\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003ca href=\"\/products\/bc547-npn-transistor-45v-100ma-to-92-for-switching-amplification\"\u003eBC547 Transistors\u003c\/a\u003e x10\u003c\/li\u003e\n    \u003cli\u003eBC557 Transistors x10\u003c\/li\u003e\n    \u003cli\u003eTIP31C NPN x2\u003c\/li\u003e\n    \u003cli\u003eTIP32C PNP x2\u003c\/li\u003e\n    \u003cli\u003e\n\u003ca href=\"\/products\/resistor-variety-pack-100-pcs-10-values-14w-carbon-film\"\u003e10kΩ Resistors\u003c\/a\u003e x20\u003c\/li\u003e\n    \u003cli\u003e1kΩ Resistors x10\u003c\/li\u003e\n    \u003cli\u003e100µF Caps x5\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/products\/3w-8-ohm-speaker-compact-audio-output-for-diy-electronics\"\u003eSpeaker 8Ω\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/products\/breadboard-standard-bundle-830400-tie-points-for-prototyping\"\u003eHalf Breadboard\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/products\/raspberry-pi-pico-2-dual-core-rp2350-microcontroller-board\"\u003eDual PSU\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003eM-M Wires x30\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is included in the ECE Lab Kit 24 Audio Amplifier Design Lab?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The ECE Lab Kit 24 Audio Amplifier Design Lab includes all components needed: BC547 Transistors, BC557 Transistors, TIP31C NPN, TIP32C PNP, 10kΩ Resistors and more. Everything is pre-tested for compatibility and shipped from Bengaluru, India.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What skill level is required for the ECE Lab Kit 24 Audio Amplifier Design Lab?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This kit is designed for Intermediate level makers, suitable for ages 15-21. Class A, Class B and Class AB audio amplifier circuits built on breadboard — compare efficiency and distortion. Estimated build time is 3-4 hrs.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I buy the ECE Lab Kit 24 Audio Amplifier Design Lab online in India?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, the ECE Lab Kit 24 Audio Amplifier Design Lab is available online at Compoden (compoden.in), India's AI-powered electronics and robotics store. 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