{"product_id":"1khz-sine-wave-signal-generator-ultra-low-distortion-oscillator-circuit-board","title":"1KHz Sine Wave Signal Generator – Ultra-Low Distortion Oscillator","description":"\n\u003ch2\u003e1KHz Sine Wave Signal Generator – Ultra-Low Distortion Oscillator Circuit Board\u003c\/h2\u003e\n\u003cp\u003eTake your audio and electronics testing to the next level with this precision-engineered \u003cstrong\u003e1KHz Sine Wave Signal Generator Circuit Board\u003c\/strong\u003e. Featuring an industry-leading distortion coefficient of just \u003cstrong\u003e0.000064% (–124dB)\u003c\/strong\u003e, this compact module delivers an exceptionally pure and stable sine wave output — ideal for engineers, hobbyists, and audio professionals who demand accuracy.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUltra-Low Distortion:\u003c\/strong\u003e Distortion coefficient of 0.000064% — less than 0.001% — ensuring unmatched signal purity for high-precision applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e1KHz Sine Wave Output:\u003c\/strong\u003e Rock-solid 1KHz oscillation frequency, precision-matched using a digital meter for accuracy and stability.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Output Voltage:\u003c\/strong\u003e Output voltage greater than 7V, suitable for a wide range of test and measurement scenarios.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnergy-Efficient Operation:\u003c\/strong\u003e Powered by ±15V at only 30mA — low-power design that runs efficiently without excess heat.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNE5532 Op-Amp Chip:\u003c\/strong\u003e Built around the industry-trusted NE5532 chip for reliable, high-performance signal generation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrecision-Matched Components:\u003c\/strong\u003e Frequency-controlling capacitors are hand-selected and paired using a digital meter; frequency resistors use a 3.3KΩ resistor in series with a 200Ω 3296 multi-turn potentiometer for fine-tuned accuracy.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVersatile Applications:\u003c\/strong\u003e Perfect for harmonic distortion testing, level testing, regenerative power supply circuits, and audio amplifier evaluation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Form Factor:\u003c\/strong\u003e Measures just 90 × 49 × 16mm — easy to integrate into any test bench or DIY electronics project.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 KHz (adjustable for other frequencies)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDistortion Coefficient\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 0.001% (typ. 0.000064% \/ –124dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±15V DC, 30mA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026gt; 7V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOp-Amp IC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNE5532\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e90 × 49 × 16mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eTechnical Notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eFor minimum distortion, component values should satisfy: R10 = 2×R13 and C3 = 2×C4.\u003c\/li\u003e\n  \u003cli\u003eTo change the output frequency, adjust R6, R7, C1, C2, and R11 accordingly. Examples: 50Hz → R11 = 447KΩ; 60Hz → R11 = 408KΩ.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1× 1KHz Sine Wave Signal Generator Circuit Board\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003ePlease Note:\u003c\/strong\u003e Colors may vary slightly due to monitor settings. Allow ±1–10mm measurement tolerance due to manual measuring.\u003c\/p\u003e\n\n\u003cp\u003eFor more information on signal integrity and electronic measurement standards, visit the \u003ca href=\"https:\/\/www.nist.gov\/topics\/electronics\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eNational Institute of Standards and Technology (NIST) – Electronics\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is this 1KHz sine wave signal generator circuit board used for?\u003c\/h4\u003e\n\u003cp\u003eA: This oscillator circuit board is designed for high-precision applications including harmonic distortion testing, audio level testing, amplifier evaluation, and regenerative power supply circuits. Its ultra-low distortion output makes it ideal for engineers and audio professionals who require a clean, stable 1KHz reference signal.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can this signal generator be adjusted to output frequencies other than 1KHz?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. While the board is factory-set for 1KHz, you can modify the output frequency by adjusting components R6, R7, C1, C2, and R11. For example, for 50Hz output set R11 to 447KΩ, and for 60Hz set R11 to 408KΩ. Refer to the component guidelines for your target frequency.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What power supply does this oscillator board require?\u003c\/h4\u003e\n\u003cp\u003eA: The board requires a dual-rail ±15V DC power supply with a current draw of only 30mA. No battery is included. Its low-power design makes it energy-efficient and suitable for extended bench use.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What op-amp chip does this circuit board use?\u003c\/h4\u003e\n\u003cp\u003eA: This signal generator is built around the widely trusted \u003cstrong\u003eNE5532\u003c\/strong\u003e op-amp IC, known for its low noise and high performance in audio and measurement applications.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is this 1KHz sine wave signal generator circuit board used for?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This oscillator circuit board is designed for high-precision applications including harmonic distortion testing, audio level testing, amplifier evaluation, and regenerative power supply circuits. Its ultra-low distortion output makes it ideal for engineers and audio professionals who require a clean, stable 1KHz reference signal.\"}}, {\"@type\": \"Question\", \"name\": \"Can this signal generator be adjusted to output frequencies other than 1KHz?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. While the board is factory-set for 1KHz, you can modify the output frequency by adjusting components R6, R7, C1, C2, and R11. For example, for 50Hz output set R11 to 447KΩ, and for 60Hz set R11 to 408KΩ. Refer to the component guidelines for your target frequency.\"}}, {\"@type\": \"Question\", \"name\": \"What power supply does this oscillator board require?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The board requires a dual-rail ±15V DC power supply with a current draw of only 30mA. No battery is included. 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