{"product_id":"ultra-low-frequency-sine-wave-signal-generator-crystal-oscillator-schumann","title":"Ultra-Low Frequency Sine Wave Signal Generator with 7.83Hz Earth Resonance Preset \u0026 0.01-100,000Hz Range | Thomler","description":"\u003ch2\u003eCreate Stable Low-Frequency Signals From 0.01Hz Through 100,000Hz With Crystal-Locked Precision\u003c\/h2\u003e\n\u003cp\u003eWhether you're exploring electromagnetic resonance phenomena, conducting audio experiments, or researching biofeedback frequencies, you need a \u003cstrong\u003esignal source\u003c\/strong\u003e that maintains accuracy across ultra-low frequencies without drift or distortion. This tabletop frequency generator uses a \u003cstrong\u003etemperature-compensated crystal timebase\u003c\/strong\u003e coupled with a dedicated digital-to-analog converter to produce mathematically pure sine waves at any frequency you dial in — from infrasonic 0.01Hz crawls all the way through the audible spectrum to 100kHz. The \u003cstrong\u003ebacklit numeric display\u003c\/strong\u003e confirms your exact setting, while a full keypad lets you type in precise values digit-by-digit. Out of the box it defaults to the Earth's natural 7.83Hz electromagnetic standing wave, so enthusiasts of that frequency can power on and go. A \u003cstrong\u003e3.5mm line output\u003c\/strong\u003e feeds amplifiers and powered speakers for acoustic playback, while a dedicated scope probe port lets engineers verify waveform purity on an oscilloscope. Powered by any standard USB-C phone charger, the entire circuit draws under 15 milliamps, making it practical for hours of continuous operation on a laptop port or battery bank.\u003c\/p\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1060\/5327\/1890\/files\/aethe-lyx-img-03.jpg?v=1789583768\" alt=\"\" style=\"width:100%;max-width:100%;height:auto;display:block;margin:24px 0;\"\u003e\n\u003ch2\u003eWhy You Need This\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrystal-Referenced Stability:\u003c\/strong\u003e A low-drift quartz oscillator core keeps your selected frequency locked without wandering, even during multi-hour sessions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFive-Decade Sweep Range:\u003c\/strong\u003e Dial in any frequency from 0.01Hz subsonic pulses to 100kHz ultrasonic tones with the same clean sine output throughout.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Keypad Entry:\u003c\/strong\u003e Type the exact frequency you want using numbered buttons, confirm with OK, and watch the LCD update in real time — no fiddly knobs or menu diving.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLine-Level Audio Output:\u003c\/strong\u003e A standard 3.5mm jack connects straight to powered monitors, guitar amps, or studio interfaces so you can hear and record the waveform.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScope Test Port:\u003c\/strong\u003e Engineers can clip an oscilloscope probe directly to the test header to measure amplitude, verify harmonic content, and confirm frequency accuracy on screen.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Button Earth Frequency Recall:\u003c\/strong\u003e Press the restore key at any time to instantly return to the 7.83Hz default, perfect for quick A\/B comparisons or resetting after experiments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePrecision Tool For Sound, Science \u0026amp; Resonance Research\u003c\/h2\u003e\n\u003cp\u003eFrom synthesizer calibration and speaker phase testing to meditation soundscapes and electromagnetic field studies, stable sine-wave generation opens the door to dozens of technical and creative projects. The transparent acrylic enclosure protects the PCB while keeping the spiral \u003cstrong\u003etransmission antenna\u003c\/strong\u003e visible — the double-sided coil layout radiates low-frequency electromagnetic fields into the surrounding space for near-field experiments. An LED indicator glows whenever the output is active, and the display backlight toggles on or off to suit dim or bright environments. Compact enough to sit on a workbench beside your oscilloscope or on a nightstand during evening sessions, this generator fits wherever you need a rock-solid reference tone. The USB-C power input accepts any 5-volt supply, and the minuscule current draw means you can leave it running all day without worry. Every frequency adjustment is confirmed on the two-line LCD, and a SET button lets you clear and re-enter if you mistype a digit before hitting OK. Whether you're chasing the Schumann fundamental or sweeping through audio test tones, this compact lab instrument delivers repeatable, drift-free performance year after year — and it ships with free standard US shipping and a 30-day satisfaction guarantee so you can experiment risk-free.\u003c\/p\u003e","brand":"Thomler","offers":[{"title":"Enclosed PCB (USB-C)","offer_id":54750054220114,"sku":"SKU_1789583765965_198","price":199.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1060\/5327\/1890\/files\/aethe-lyx-img-04.jpg?v=1789583768","url":"https:\/\/thomler.com\/en-ca\/products\/ultra-low-frequency-sine-wave-signal-generator-crystal-oscillator-schumann","provider":"Thomler","version":"1.0","type":"link"}