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
10Pcs 5V-30V Wide Voltage Trigger Delay Timer Relay Conduction Relay Module Time Delay Switch
$48.30Relay ModuleAdd to cartDescriptionWide voltage 5V-30VTime can be adjusted via a potentiometer, meeting your most occasionsMicro USB 5.0V power supply with input, easy to use5–30V wide supply voltageExternal triggering and onboard buttons Two triggering methodsWith a relay pull-in indicatorInterference ability, under various interference will not malfunction relay for industrial control.Module features1. Working voltage:Wide voltage any voltage between 5-30V, …
110-220V 150W Foldable Electric Cloth Hanger Travel Heating Dryer Drying Rack
$46.56Switch AccessoriesAdd to cartFeatures1. 3-hours fast drying. Use clothes to form a wind hood, so that the hot air flow gathers inside the clothes and circulates to achieve the purpose of fast drying.2. Dual mode, cold and hot air switching. It will automatic conver to cold air after 3h hot air drying.3. PTC heating, low power consumption, safe …
110-220V 150W Foldable Electric Cloth Hanger Travel Heating Dryer Drying RackRead More
20Pcs 10ml Metal Needle Empty Plastic Bottle Shisha E Cig Liquid Dropper
$19.08Bottles & JarsAdd to cartDescription20Pcs 10ml Metal Needle Empty Plastic Bottle Shisha E Cig Liquid Dropper SpecificationsMaterial:PECapacity:10mlSize:20X77mm / 0.79X3.0 inchNeedle Size:Inner Diameter =0.8mm, Outer Diameter =1.2mm, Length=12mmQuantity:20 pcsFeatures1. 10ml empty plastic bottle with metal needle2. Metal needle design,durable and easy to use3. Ideal for storing E cig liquid,solvents, light oils , eye drops, saline, etc.Package included20 X 10ml Empty …
20Pcs 10ml Metal Needle Empty Plastic Bottle Shisha E Cig Liquid DropperRead More
3Pcs AC-DC 3.5W Isolated AC 110V / 220V To DC 3.3V 1A Switch Power Supply Converter Module
$19.93Power Supply ModuleAdd to cartDescriptionsThe power supply is isolated industrial grade built-in power module with temperature protection, overcurrent and short circuit full protection.FeaturesAC85 – 264V or DC110 – 370V wide voltage inputDC3.3V(+/ -1%) 1A isolated outputInput Current:0.5mA/115VAC 0.25mA/230VACInput surge current:10A (230VAC)Frequency range:47-63HzOperating Temperature:-30 – 70 →Relative humidity:20%- 90%Rated power:3.5WOutput efficiency:61%Module size:5.1*2.3*1.8cmPackage included3 x AC-DC 3.5W Isolated AC 110V / …
3Pcs AC-DC 3.5W Isolated AC 110V / 220V To DC 3.3V 1A Switch Power Supply Converter ModuleRead More
3Pcs XL4015 5A DC-DC Step Down Adjustable Power Supply Module Buck Converter
$16.35Boost & Buck ModuleAdd to cartSpecificationModule highlights:5A high power, high efficiency and low ripple with power indicatorModule Properties:non-isolated buck module (BUCK)Input voltage:8-36V (input please try not to exceed 38V)Output voltage:1.25-32V continuously adjustableOutput Current:0-5AOutput Power:75WOperating temperature:-40 to +85 degreesOperating frequency:180KHzConversion efficiency:up to 96%Load regulation:S (I) ≤0.8% (input 24V, output 12V, load varies from 1 ~ 4.5A measured)Voltage Regulation:S (u) ≤0.8% (output …
3Pcs XL4015 5A DC-DC Step Down Adjustable Power Supply Module Buck ConverterRead More
Reviews
There are no reviews yet.