Reviews Oscillator Circuit

LEE DAN PK-543A 5-4-3 WIRE APARTMENT INTERCOM AMPLIFIER

  • Integrated circuit amplifier including amplifier with frequency response adjusted for best voice articulation.
  • AC or DC operation with selectable timing.
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Electro Faustus Blackfly Modular Spring Activated Instrument Eurorack Module

  • DS3231 16-pin memory chips - AT24C32 ,extremely accurate I2C real-time clock (RTC), with an integrated temperature-compensated crystal oscillator (TCXO) and crystal..
  • Integrated oscillator improve long-term accuracy of the device and reduces the number of components of the production line..
  • Provides two configurable alarm clock and a calendar can be set to a square wave output. Address and data are transferred serially through an I2C bidirectional bus..
  • Highly accurate RTC completely manages all timekeeping functions.The device incorporates a battery input, disconnect the main power supply and maintains accurate timekeeping..
  • A precision temperature-compensated voltage reference and comparator circuit monitors the status of VCC to detect power failures, provide a reset output. In addition, RST pin is monitored as generating a μP reset..
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CW QRP Shortwave Radio Kit - CW Transceiver Shortwave Radio Kit

  • The patch device of the main control board has been pre welded and connected to the base plate in the form of stamp hole. The single chip microcomputer adopts pic16f1938, builtin PLL local oscillator, supports crystal oscillator calibration setting, and has its own frequency indication circuit (Seven Segment LED nixie tube is used, the display unit is 1kHz, the photo has color difference, and the actual color is red. The working frequency covers 7.000-7.100mhz, 1kHz or 100Hz steps )..
  • Ta2003 mixer is used for reception, and crystal filter is used for if. After ta2003 multiplication detection, the sound size is adjusted by digital potentiometer and sent to audio active filter circuit. Finally, LM386 drives speaker, and if frequency supports calibration setting..
  • Use 3 bs170 parallel outputs, class E amplification, 12V power supply, output power 5W! Relay switching is used for transceiver, with the function of transmitting delay adjustment to avoid frequent relay switching and improve the isolation of transceiver channel..
  • It has the function of automatically sending call signs, which is very convenient to use. The MCU uses the original code of our store, which can adjust the code speed, sidetone frequency and sidetone size. It can input the call sign by ....
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OCESTORE Crystal Oscillator Tester Frequency Counter Tester Meter 1Hz-50MHz Cymometer Measurement Tester Module LED DIY Kit

  • 【OPTIMAL PERFORMANCE】OCESTORE premium upgrade Frequency Counter Tester Meter based on PICmicrocontroller that can measure frequency of 1 Hz to 50 MHz,designed to measure the oscillation frequency of the most crystal oscillators..
  • 【HIGH QUALITY】OCESTORE premium Frequency Counter Tester Meter is made of high quality material which can use for a long time.Programmable addition and subtraction frequency settings, used to measure radio transceivers and other equipment..
  • 【SUPER IMPORTATNT】with crystal oscillator measurement function and programmable addition and subtraction frequency settings, five-digit digital tube display, convenient and intuitive, all use in-line components, simple circuit, easy to make..
  • 【OPTIMAL RELIABILITY】Power supply : USB 5V or DC 5-12V.
  • Crystal Test Range: about 4MHz-48MHz.Automatic range conversion, no need for manual switching.
  • All in-line components, easy to install and debug..
  • 【PACKAGE & SERVICE】Package Include: 1 Pcs x Crystal Oscillator Frequency Counter .Any question Pls fell free to contact us, we will reply you within 24H.And we offer a 12 month warranty..
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Glarks 40Pcs 74LSxxx and 74HCxxx Series Low-Power Logic IC Assortment Kit

  • ...Service]: ICs are made of high-quality materials, they are very durable, can serve you for a long time. And the safety and reliability are high, so you don't have to worry even if you work for a long time..
  • ♛ [Widely Application]: 74LSxxx and 74HCxxx Series ICs can be used as Bistability, register, shift register, oscillator, oscillator, divider counter, etc..
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uxcell DIP Quartz Crystal Oscillators Resonators 16MHz HC-49S Replacements 10 Pcs

  • GOOD DURABILITY: Possess large area heat dissipation, which can guarantee run for a longer time.
  • GOOD PERFORMANCE: Printed circuit board adopt 1.6mm thick double?sided board, guarantees good passing performance of large and small currents.
  • PERFECT IN WORKMANSHIP: Made with one ? piece molding, without burr, come with smooth surface and simple installation.
  • WELL DESIGNED: Adopt advanced technology with excellent craftsmanship, which brings fine finish.
  • STABLE AND RELIABLE: Good quality RF oscillator module possess stable structure and high performance.
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Water Flowing Light Module, 2 Pcs Light Module Electronic Light Kit LED Chaser DIY Kit LED Running Light for Electronic Circuit

  • Mainly composed of clock generation circuit and decimal counter circuit..
  • The self-excited multivibrator with NE555 as the core, the power supply charges capacitor C1 through R2, R3, R4. When C1 starts charging, the 2 pin of NE555 is still at low level, so the output pin 3 is high level. When the power supply is charged to the.
  • The charging time is: 0.695 (R2+R3+R4)C1, the discharge time is: 0.695 (R4+R3)C1, the R4 can be adjusted to control the output frequency of the oscillator, and the clock oscillation signal of NE555 is continuously added to the 14th pin of CD4017..
  • Ten LEDs are connected to the 10 outputs of the CD4017. When the 10 outputs of the CD4017 alternately generate a high level under the action of the clock signal, D1--D10 are sequentially illuminated to form a water-light effect..
  • Adjust the R4 to adjust the flow speed of the LED light..
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fyeTa DIY Clock kit Digital Tube Time temperatiure Date Display English Voice time Night Light DIY Electronic kit Soldering Projects(Green)

  • Digital tube led color:green. clock function:Voice timekeeping function, hourly timekeeping function, temperature display (correction), alarm clock, night light, automatic brightness adjustment, date display, week display, power-off memory.
  • Single chip microcomputer:STC15W408AS DIP-28,Clock IC:DS1302 DIP-8.32867hz crystal oscillator,CR1220 button battery with power off memory function,USB turn 5V power input..
  • Tutorial: The product contains a paper manual. Scan the QR code on the manual to enter the web manual, including detailed welding step diagrams and welding step videos, and instructions for setting the clock..
  • Reset: Press and hold 3 buttons at the same time for 5 seconds, then 12:00 is displayed, and the reset is successful. (The default is to turn off the voice and alarm functions).
  • widely used in schools to help students learn basic mechanical and electronic skills.Through the analysis of the circuit, understand the working principle of the circuit, learn to train electronic skills, welding training..
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ICQUANZX Upgraded 60MHz DDS Signal Generator Counter,High Precision Dual-Channel Arbitrary Waveform Function Generator Frequency Meter 200MSa/s (60MHz)

  • Arbitrary Waveform Generator adopts large scale FPGA integrated circuit and high speed MCU microprocessor. The internal circuit adopts active crystal oscillator as benchmark. So the signal stability is greatly strengthened..
  • Using Dual-channel DDS signal and TTL electric level output to generate precise, stable, low distortion output signal. includes Sine wave, Square wave, Triangle wave, Sawtooth wave, Pulse wave, white noise, user-defined waveform etc. each channel can be independently set the parameters..
  • With linear sweep(Max. up to 999.9s) and logarithmic frequency sweep functions.Has a frequency measurement, period measurement, positive and negative pulse width measurement and counting function..
  • Storage feature: You can store 99 groups instrument state parameters set by the user, can be called up to Reproduce. Frequency output of Sine wave can be up to 60MHz. 200MSa/s sampling rate. It has 60 positions for saving user-defined waveform. Waveform Length of each one is 2048 and vertical resolution is 14 bits.
  • This Signal Generator is the ideal instrument for electronic engineering, laboratories, production lines, teaching and scientific research..
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Koolertron Upgraded 15MHz DDS Signal Generator Counter,High Precision Dual-Channel Arbitrary Waveform Function Generator Frequency Meter 200MSa/s (15MHz)

  • Arbitrary Waveform Generator adopts large scale FPGA integrated circuit and high-speed MCU microprocessor. The internal circuit adopts the active crystal oscillator as the benchmark. So the signal stability is greatly strengthened..
  • Using Dual-channel DDS signal and TTL electric level output to generate precise, stable, low distortion output signal. includes Sine wave, Square wave, Triangle wave, Saw toothwave, Pulse wave, white noise, user-defined waveform etc. each channel can be independently set the parameters..
  • With linear sweep(Max. up to 999.9s) and logarithmic frequency sweep functions.Has a frequency measurement, period measurement, positive and negative pulse width measurement and counting function..
  • Storage feature: You can store 99 groups instrument state parameters set by the user, can be called up to Reproduce.The frequency output of Sine wave can be up to 15MHz. 200MSa/s sampling rate. It has 60 positions for saving user-defined waveform. Waveform Length of each one is 2048 and vertical resolution is 14 bits.
  • This Signal Generator is the ideal instrument for electronic engineering, laboratories, production lines, teaching and scientific research..
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Display Digital Signal Frequency Counter PLJ 6LED H LED Signal Generator Cymometer Tester Frequency Measurement Modules Adjustable Module 0.1~1000MHz(Backlight Font red)

  • Test Accuracy: The frequency meter is designed with dual intermediate frequencies. The intermediate frequency value and the addition and subtraction mode can be preset separately without affecting each other, which can achieve high stability and high resolution. The tester has good sensitivity, better than 60mVPP.
  • Excellent Performance: The frequency reference uses a temperature compensated voltage controlled crystal oscillator. The display driver adopts LED display special chip, the digital tube has high brightness and less external interference.
  • Small and Convenient: This module is compact and exquisite in design, can be put into a pocket, does not occupy extra space, is convenient to carry, and has reliable performance, good visual effects, and low cost.
  • Convenient to Operate: The circuit of the frequency meter is simple, the design structure is reasonable, and the unique two key control method and precise time algorithm are used to make the operation simple and fast.
  • Multi Function: The circuit is simple, the structure is reasonable, double button control, and the operation is simple. Each setting is automatically saved, and the power is on.
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XINGYHENG 100 Pcs 10 Value DIP Quartz Crystal Oscillator 4M 6M 8M 11.052M 12M 13.56M 16M 22.1184M 27M 32.768K Crystal Resonators Oscillator Assortment Kit Each of 10Pcs

  • 100 Pcs 10 value DIP Quartz Crystal Oscillator 4M,6M,8M,11.052M,12M,13.56M,16M,22.1184M,27M,32.768K Crystal Resonators Oscillator Assortment Kit Each of 10Pcs.
  • Package Content : 10x Crystal Oscillator.
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RTL-SDR Blog R820T2 RTL2832U 1PPM TCXO SMA Software Defined Radio (Dongle Only)

  • Includes 1x RTL-SDR Blog brand R820T2 RTL2832U 1PPM TCXO HF Bias Tee SMA Dongle (V3) (Dongle Only).
  • Several improvements over other brands including use of the R820T2 tuner, improved component tolerances, a 1 PPM temperature compensated oscillator (TCXO), SMA F connector, aluminium shielded case with thermal pad for passive cooling, activatable bias tee circuit and a much improved antenna set..
  • Can tune from 500 kHz to 1.7 GHz and has up to 3.2 MHz of instantaneous bandwidth (2.4 MHz stable). (HF reception below 24 MHz in direct sampling mode with reduced performance). Please note RTL-SDR dongles are RX only..
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