10pcs DIY Multi Harmonic Oscillator Scintillator Module DIY Electronic Bistable Starter Kits
$16.77
Shipping:Standard Shipping about 10-25 business days
Secure Payment:Paypal,VISA,MasterCard
Description
Working voltage:DC2V – 15V
Board size:23 x 27mm
The circuit is a typical self-excited multi-resonance circuit, the circuit suite is simple, easy to understand, interesting, rich theoretical knowledge, especially suitable for beginners to assemble and use. The circuit is provided with explanatory information.
How it works:When the power is switched on, two transistors compete for the lead, but because of the differences in components, only one transistor is the first to turn on. If VT1 is the first to turn on, then VT1 collector voltage drops, LED 1 is lit, the left end of capacitor C2 is close to zero voltage, because the voltage at both ends of capacitor can not mutate, so VT2 base is pulled to near zero voltage, so that VT2 cut off, LED 2 is not bright. As the power supply charges the resistor R3 to C2, the base voltage of Q2 rises gradually. When the voltage exceeds 0.6 V, VT2 changes from cut-off state to on state, collector voltage drops, and LED 2 is lit. At the same time, the decrease of collector voltage of VT2 makes the base voltage of VT1 jump down, VT1 changes from on to off, and LED 1 goes out. In this cycle, the two triodes turn on and off in turn, and the two LEDs circulate continuously. Changing the resistance or capacitance of R2 or R3 can change the speed of LED flicker.
Package Included
10 x DIY Multi Harmonic Oscillator Scintillator Module Kit
Weight | 0.05 kg |
---|
Customers Also Viewed
PM3 Proxmark3 V5.0 IC+ID Full Encryption Card Reader All-in-one Access Control Elevator Garage NFC Multiple Card
$207.99Card ReaderAdd to cartFeatureIt is only used for learning RFID NFC communication and testing the technical security of RFID, as a basic learning tool for RFID personnel. Use for illegal purposes is prohibited.Increase the reading memory, you can read more cards, and the reading speed is faster and stronger.Support one-click reading, easy export and import filesSupport dual-frequency cards, …
10pcs DC3.3-4.2V JDY-64 Lossless Bluetooth 4.2 Module Stereo Audio bluetooth Board
$42.69Smart ModuleAdd to cartProduct introductionJDY-64 is a low power consumption lossless two-channel stereo design, and the overall performance is very advantageous. It only needs to connect the module to the application products so that users can quickly achieve wireless music transmission, which defaults no prompt tone for button, switch, connection, fragment opening, and integrated SD card defaults earphone …
10pcs DC3.3-4.2V JDY-64 Lossless Bluetooth 4.2 Module Stereo Audio bluetooth BoardRead More
LILYGO TTGO T-Bot ESP32 Main Chip T-Block with HC-SR04 Module Programmable Hardware MINI Trolley
$91.31Smart ModuleAdd to cartMore Information:https://github.com/Xinyuan-LilyGO/TTGO_TWatch_Library FeatureHardware SpecificationChipsetESPRESSIF-ESP32 (Wi-Fi & Bluetooth)240MHz Xtensa single-/dual-core 32-bit LX6 microprocessorFLASH16MB / PSRAM 8MBSRAM 520 kB SRAMButtonSwitch, ResetUSB to TTLCP2104Modular interfaceI2C On-board clock40MHz crystal oscillator Working voltage2.7V-3.6VWorking temperature range -40→ ~ +85→Size55*46*53 mmWeight48.3gPower SupplyPower Supply InputUSB 5V/1ACharging current500mABattery Input 3.7-4.2VBattery3.7V lithium batteryJST Connector2Pin 1.25mmUSBWi-FiStandardFCC/CE-RED/IC/TELEC/KCC/SRRC/NCC(esp32 chip)Protocol802.11 b/g/n(802.11n,speed up to150Mbps)A-MPDU and A-MSDU polymerization,support 0.4┢S Protection intervalFrequency …
UAF42 Active High Pass Low Pass Bandpass Filtering Frequency Gain Q Adjustable General Filter
$41.54Other Module BoardAdd to cartUAF42 has the following featuresHighly versatile, can be changed as high pass, low pass, band pass and band stop filters as needed (Jumper settings);The design is simple. BB has also designed a software specifically for the UAF42, which makes it easy and flexible to design different types of filters.With high precision frequency and high Q …
3pcs Geekcreit Yellow 3D Mini SMD PCB Stereo Christmas Tree DIY Music Kit
$15.84DIY Electronic KitsAdd to cartDescriptionThis is a simple mini Christmas tree DIY kit. Three different PCBs are combined into a 3D stereo Christmas tree model. A variety of different colors can be selected. It can be powered by a button battery and can be free from the power supply. Built-in 7 LED gradient modes plus 7 different Christmas melody.Manual:Click …
3pcs Geekcreit Yellow 3D Mini SMD PCB Stereo Christmas Tree DIY Music KitRead More
10pcs 2.54mm 2x4P 8P Double Row Female Straight Pin Header Needle Socket Pin Strip
$6.55Electronic Accessories & SuppliesAdd to cartSpecificationsSpacing:2.54mmGender of Connector:FemaleNumber of Pins:2x4PinType of Row:Double RowType of connector:StraightPackage included10 x 2.54mm 8P double row female straight pin header
Excellway 20Pcs JST Female and Male Battery Connector Set
$10.11ConnectorsAdd to cartDescriptionBrand:ExcellwayName:5 x JST BEC Set Female and Male Battery Connector Bu ggy Truck PlaneMaterial:metal + PlasticFeatures1. Includes 10 RC JST BEC Set Female and Male Battery Connector2. Long service life.3. Easy to install.Package Included5 x male Connectors5 x female Connectors5 x female pins5 x male pins
Reviews
There are no reviews yet.