1 XR2206 High - for precision signal generator. The frequency can be adjusted from 1Hz-1MHz, the amplitude of the frequency can be adjusted. Frequency: 1Hz -1MHz. Amplitude: 0-3V at 9V DC Input. Amplitude: 8V (No load) at 9V DC Input.
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DC 5V 0.01Hz~100000Hz Adjustable Frequency 7.83HZ Schumann Wave Generator Sine Wave Signal Generator Micro USB Interface
Aliexpress UK
This signal generator DIY kit is professional product to generate sine/triangle/square/forward and reverse sawtooth wave. It's a DIY kit for you to weld and install. Low Temperature Drift: 50ppm / °C.
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FG-300 Portable Signal Generator Adjustable 0.001Hz-200kHz 7.83HZ Schumann Resonance Ultra-Low Frequency Pulse Wave Generator
Aliexpress UK
MAX2870 23.5-6000MHz RF signal source signal generator module PLL VCO -4dBm~+5dBm with for STM32 driver. 1 x RF signal source. 23.5MHz to 6.0GHz frequency range signal output. Onboard: 100MHz reference clock frequency.
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DC5V Schumann Wave Generator Electromagnetic Wave Version Extremely Low Frequency Pulse Signal Generator 7.83HZ TYPE-C Interface
Aliexpress UK
Output waveforms: sine waves, Fang waves (adjustable ratio can be adjusted), triangular waves, lift jagged waves, and sawnooth waves. Display: LCD1602 LCD English display. Infinite line restrictions, the full range of frequency regardless of gear, direct digital settings.
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ZK-PP1K Dual Mode Signal Generator LCD PWM 1-Channel 1Hz-150KHz PWM Pulse Frequency Duty Cycle Adjustable Square Wave Generator
Aliexpress UK
35MHz-4400MHz RF signal generator ADF4351 module sweep generator PLL with for OLED display. The module can realize frequency output of 35MHz-4.4GHz, basic functions such as point frequency, frequency sweep, and frequency hopping.
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5V DC 12V 24V1Hz-150Khz Signal Generator Module Adjustable PWM Pulse Frequency Generator Duty Cycle TTL LCD for Electrical Tool
Aliexpress UK
35MHz-4400MHz RF signal generator ADF4351 module sweep generator PLL with for OLED display. The module can realize frequency output of 35MHz-4.4GHz, basic functions such as point frequency, frequency sweep, and frequency hopping.
eBay
1Hz-150KHz Signal Generator Module Adjustable PWM Pulse Frequency Function Generator Duty Cycle TTL LCD Display 5V XY-LPWM
Aliexpress UK
MAX2870 23.5-6000MHz RF signal source signal generator module PLL VCO -4dBm~+5dBm with for STM32 driver. 1 x RF signal source. 23.5MHz to 6.0GHz frequency range signal output. Onboard: 100MHz reference clock frequency.
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DC 5V Schumann Wave Generator 0.01-99999Hz Precise Adjustable Frequency Signal Generator Micro USB Touch Screen Audio Resonator
Aliexpress UK
The module can output sine waves and square waves, 2 sine waves and 2 square waves. Square wave: 0-1MHz. The AD9850 module uses a 125MHz active for crystal oscillator, and the AD9851 module uses a 30MHZ active for crystal oscillator.
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7.83Hz Schumann Waves Frequency Generator Adjustable 0.01Hz~100000Hz Signal Generator Sine Pulse Audio Resonator Type-C
Aliexpress UK