Best Adjustable Frequency Drives

FITNATE 12 Pipe Aluminum Heat Exchanger Radiator for PC CPU CO2 Laser Water Cool System Computer R240, 10.62Inch

  • AGPTEK well male durable Aluminum Heat Exchanger Radiator using integrated forging process.
  • Applicable to computer CPU,industrial variable frequency drives, VGA water cooling ,laser head cooling, and air conditioning evaporator..
  • Using the black oxidation paint to increase the thermal efficiency.
  • Size:main size: 10.62inchx4.72inchx1.18inch(265mm x 120mm x 30mm).
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Tecsun H501 Digital Worldband AM/FM Shortwave Longwave Radio with SSB Reception, Dual Speakers, & MP3 Player, Matte Black

  • 【HF VFO /RF Generator 】It has 10kHz to 220MHz working ranges. 0.5PPM high precise Tcxo clock, the frequency is more accurate. Tuning step of 1Hz, 10Hz, 1kHz, 5kHz, 10kHz and 1MHz..
  • 【VFO for Ham SDR HAM QRP Transceiver】 Used as a local oscillator on Homebrew radio receivers (such as superheterodyne, SDR, direct conversion and Homebrew QRP transceivers) , a simple RF/clock generator for calibration reference or clock generation,a common 128x64 I2C OLED SSD1306 display and Si5351 module..
  • 【Adjustable】Intermediate frequency (IF) offset (+ or -) is adjustable.The bar graph of the signal meter through the analogs input (ADC).I2C data transmission, only need 2 lines it can be connected to the display, with high stability and accuracy of frequency generation.
  • 【20 Band Presets】Equipped with generator function mode.Initial frequency, end frequency, sweep-frequency-step can be set. 20 band presets (shortcuts) for BCB and HAM frequencies.RX/TX mode selector for Homebrew QRP transceivers..
  • 【 Guarantee】 We providing 100% satisfactory service to every customer to make sure our customer can purchase with confidence. If you have any questions, please contact us, we will reply and improve in time..
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5pcs A4988 StepStick Stepper Motor Driver Module + Heat Sink for 3D Printer RepRap

  • This stepper motor driver lets you to operate bipolar stepper motors in full-, half-, quarter-, eighth-,and sixteenth-step modes, with an output drive....
  • There are no phase sequence tables, high frequency control lines, or complex interfaces to program..
  • The A4988 interface is an ideal fit for applications where a complex microprocessor is unavailable or is overburdened..
  • The translator is the key to the easy implementation of the A4988. Simply inputting one pulse on the STEP input drives the motor one microstep..
  • This product is a breakout board for Allegro¡¯s A4988 DMOS Microstepping Driver with Translator and Overcurrent Protection.
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High Frequency Facial Wand - TUMAKOU Portable Handheld Blue High Frequency Facial Machine - 4 Different Blue Glass Tubes for Skin

  • ...be, 1*Tube, 1*Bend Tube and 1*Tongue Tube), and let you focus on all the different areas. Mushroom tube is suitable for broader areas, the Tube is used for hair, Tongue tube is suitable for area around the eye, and Bend Tube is suitable for area around the nasal fossa..
  • 【Adjustable Level & Easy To Use】The energy level of our portable high frequency facial machine is adjustable,the higher level will bring you better results! But before using it for the first time, we recommended to test the strength by hand, and then use it where you want to use it. When you using, just insert the glass tube into the wand, push it in gently, then turn the high frequency face machine down to zero and turn it on, choose different levels to use according to your needs..
  • 【Easy to Carry】Portable and lightweight,you can choose different blue glass tube accessories of high frequency facial machine to use at your own home according to your needs,you don't need to go out, which is convenient and time-saving! All blue accessories are packed in a gift box,TUMAKOU portable high frequency facial machine is also friendly for travel and business trips..
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Synology 5 bay NAS DiskStation DS1019+ (Diskless), 5-bay; 8GB DDR3L

  • Quad-core CPU with AES-NI encryption engine, delivering reading and writing throughput at over 225 MB/s even when data are encrypted.
  • Loaded with two 4GB DDR3L memory module, providing 8GB memory capacity in total.Power Supply Unit / Adapter - 120 W. AC Input Power Voltage - 100 V to 240 V AC .Power Frequency - 50/60 Hz, Single Phase.
  • Built-in two M.2 NVMe SSD slots for system cache support.
  • Dual 1GbE (RJ-45) ports with failover and Link Aggregation support.
  • Dual-channel H.264/H.265 4K video transcoding on the fly.
  • Scalable up to 10 drives with one expansion unit DX517 connected.
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Partaker Fanless Industrial PC,Mini Desktop Computer with Intel Core I7 8550U Quad Core CPU, 16GB Ram 240GB SSD,6xCOM, 4xUSB 3.0, 4xUSB 2.0, 2xLAN, GPIO, HD Port, VGA, Wi-Fi, PS/2,Windows 10 Pro

  • Intel quad core i7 CPU, 8 MB Cache, Base Frequency 1.8GHz,Max Turbo Frequency 4.0GHz,14 nm Lithography, Windows 10 (64-bit) license..
  • It comes with 16GB RAM, 240GB SSD(Solid State Disk), you can expand the storage with an extra 2.5 inch SATA SSD/HDD drives inside..
  • Support wake-on Lan, Intel Dual Band 2.4/5.0GHz high speed Wireless Wi-Fi(802.11b/g/n), Fanless, all metal case..
  • Quality warranty and lifelong customer service, if any questions, please don't hesitate to contact us, we will help you resolve the problem immediately..
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JUNSHUNTONG HF VFO for Ham SDR QRP Transceiver,20K-220MHz RF Generator Superheterodyne Receiver Debugger,Tcxo Clock,S-Meter, 20 Band presets

  • 【HF VFO /RF Generator 】It has 10kHz to 220MHz working ranges. 0.5PPM high precise Tcxo clock, the frequency is more accurate. Tuning step of 1Hz, 10Hz, 1kHz, 5kHz, 10kHz and 1MHz..
  • 【VFO for Ham SDR HAM QRP Transceiver】 Used as a local oscillator on Homebrew radio receivers (such as superheterodyne, SDR, direct conversion and Homebrew QRP transceivers) , a simple RF/clock generator for calibration reference or clock generation,a common 128x64 I2C OLED SSD1306 display and Si5351 module..
  • 【Adjustable】Intermediate frequency (IF) offset (+ or -) is adjustable.The bar graph of the signal meter through the analogs input (ADC).I2C data transmission, only need 2 lines it can be connected to the display, with high stability and accuracy of frequency generation.
  • 【20 Band Presets】Equipped with generator function mode.Initial frequency, end frequency, sweep-frequency-step can be set. 20 band presets (shortcuts) for BCB and HAM frequencies.RX/TX mode selector for Homebrew QRP transceivers..
  • 【 Guarantee】 We providing 100% satisfactory service to every customer to make sure our customer can purchase with confidence. If you have any questions, please contact us, we will reply and improve in time..
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LINSOUL KZ AS10 5BA HiFi Stereo in-Ear Earphone High Resolution Earbud Headphone 0.75mm 2 pin Cable, Five Balanced Armature Drivers, Noise Cancelling (Mic, Cyan)

  • FIVE BALANCED ARMATURES EARPHONE. Dedicating to offer the best sound for customers, KZ finally released its first pure balanced armature earphones. With 5 balanced drives per side, the sound quality has been greatly improved, more details can be heard.
  • UNIQUE 3D PRINTING TECHNOLOGY. For the first time, KZ adopts 3D printing technology in manufacturing the internal acoustic structure which houses the drivers, guiding sound to two individual outputs visible in the base of each nozzle.
  • PROFESSIONAL CROSSOVER CIRCUIT DESIGN. The AS10 has a big dynamic driver handling bass, two drivers handing high frequency, two drivers handing mid frequency. The AS10 has better impact, speed, and overall agility. Bass is very strong, mid-range is very prominent and the highs is not overly sharp.
  • STABLE AND CONFORTABLE WEARING EXPERIENCE. With the detachable 2 pin braided cable, and ergonomic design memorable ear hook, KZ AS10 outstands most earphones in the market with its practical design and long-lasting quality.
  • What you will get? 1 full year warranty and 24 hours easy to reach customer service.
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(2) Mackie MR524 5 Powered Studio Monitors+10\ Active Sub+Mic+Mount+Stands+Pads

  • Package Includes: (2) Mackie MR524 5 100 Watt Powered Active Studio Monitors Class A/B Bi-Amped Speaker. (1) Mackie MRS10 10 120 Watt Powered Active Studio Subwoofer Sub + Footswitch. (1) RockvilIe RVSM1 Pair of Near-Field Studio Monitor Stands w/ Adjustable Height. (1) Pair of RockvilIe RRS190S Foam Studio Monitor Isolation Pads 7.5" x 9.5"/3 Angles. (1) RockvilIe RCM03 Pro Studio Recording Condenser Microphone Mic+Metal Shock Mount. Features:.
  • Mackie MR524 5 50 Watt Powered Active Studio Monitor Class A/B Bi-Amped Speaker. Designed for superior mix translation and accuracy for professional results in any studio. Equipped with Mackies proven logarithmic waveguide design. Ultra-wide dispersion for enhanced stereo imaging and listening sweet spot. Precise acoustic alignment offers incredibly balanced sound across the entire frequency spectrum. 1 silk dome tweeter provides fast transient response for detailed high end and vocal clarity.
  • 5 polypropylene woofer delivers responsive, dynamic low frequency response. 50 watts of bi-amplified Class A/B amplification. Frequency response: 45 Hz 20 kHz. Optimize MR monitors for your mixing environment. Adjustable acoustic space filters maintain flat response in typical placement configurations. HF filter applies b....
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KZ AS10, LINSOUL 5BA HiFi Stereo in-Ear Earphone High Resolution Earbud Headphone with 0.75mm 2 pin Cable, Five Balanced Armature Drivers, Noise Cancelling (Without Mic, Black)

  • ...URES EARPHONE. Dedicating to offer the best sound for customers, KZ finally released its first pure balanced armature earphones. With 5 balanced drives per side, the sound quality has been greatly improved, more details can be heard. The Special bass driver delivers a strong and detailed bass. The extension of high frequency is soft and flexible, not too sharp but soft. It would be a good companion for pop music, vocals.
  • UNIQUE 3D PRINTING TECHNOLOGY. For the first time, KZ adopts 3D printing technology in manufacturing the internal acoustic structure which houses the drivers, guiding sound to two individual outputs visible in the base of each nozzle.
  • PROFESSIONAL CROSSOVER CIRCUIT DESIGN. The AS10 has a big dynamic driver handling bass, two drivers handing high frequency, two drivers handing mid frequency. The AS10 has better impact, speed, and overall agility. Bass is very strong, mid-range is very prominent and the highs is not overly sharp.
  • STABLE AND CONFORTABLE WEARING EXPERIENCE. With the detachable 2 pin OCC cable, and ergonomic design memorable ear hook, KZ AS10 outstands most earphones in the market with its practical design and long-lasting quality. The detachable cable also offers fully upgradability. You can easily change it to your favorit....
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