Electrical » Amplifiers

Wireless Doorbell, VicTsing® IP55 Waterproof Wireless Door Chime Kit, 2 Plug-in Receivers & 1 Push Button with 1000-feet Range, 52 ...

Wireless Doorbell, VicTsing® IP55 Waterproof Wireless Door Chime Kit, 2 Plug-in Receivers & 1 Push Button with 1000-feet Range, 52 ...

Description: The Homasy wireless doorbell kit with two receivers,you can install the chime where as you like.The two chime units can be configured with different ringtones - it supports 1000feet (300m) operation range in open space,and it can reach up to 100-500 feet if there have obstacles - There are 52 melodies for your option.Just press the forward and back button to choose your favorite. - You can adjust 4 levels of the volume from 25db-110db - Waterproof transmitter,so you can install it on the outside. - There is a transparent compartment at the bottom of the transmitter that you can leave message to each other - When you press the transmitter button, it will give you a blue ...


Bestweekend 20MHz-2.4GHz Low Noise Broadband RF Receiver Amplifier Signal Amplifier Module

Bestweekend 20MHz-2.4GHz Low Noise Broadband RF Receiver Amplifier Signal Amplifier Module

Feature: - Full version 50 ohm impedance matching, suitable for all 50 ohm impedance matching of small signal receiving amplifier circuit. - The board circuit adds a power supply filter capacitor (which is upgraded from the original two filter capacitor to the three filter capacitor). - Description: - Operating frequency: 20MHz - 2400MHz - The minimum input power: -90dBm, which is 1 Nava - Maximum output power: 15dBm, which is about 70mw - Frequency of different sizes have different gain - Noice figure: 0.85 - Operating voltage: 3V to 5V - Working Current: About 33mA - Size: 3cm*2.2cm*0.1cm - Package Included: - 1 x 20MHz-2.4GHz Low Noise Broadband RF Receiver Amplifier Signal Amplifier Module - Operating ...


HiLetgo Amplifier DIY Kit Amplifier Electronic Production Suite TDA2822m MAMP-1

HiLetgo Amplifier DIY Kit Amplifier Electronic Production Suite TDA2822m MAMP-1

Amplifier DIY Kit Amplifier Electronic Production Suite TDA2822m MAMP-1 - TDA2822 MAMP-1 - Package Name: TDA2822M Amplifier - Kit Model: AMP-1 - Operating voltage: DC4.5-9V - PCB Size: 51 * 36mm - Speaker Size: 50mm - Speaker Power: 0.25W - Packages without battery box and power lines, according to their own needs and select a battery box or USB power cord. - Note: Please contact us if you need the Schematic. We will send you via email to avoid Environment Destroy of Paper consumption. - Package Name: TDA2822M Amplifier - TDA2822 MAMP-1 - Kit Model: AMP-1 - Operating voltage: DC4.5-9V - PCB Size: 51 * 36mm


Children Microscope, COTOP Science Kits for Kids Microscope Beginner Microscope Kit LED 100X, 400x, and 1200x Magnification Kids Science Toys ...

Children Microscope, COTOP Science Kits for Kids Microscope Beginner Microscope Kit LED 100X, 400x, and 1200x Magnification Kids Science Toys ...

- Science microscope 1200X refined scientific instruments toy set,it's quite sturdy for a starter kit and the magnification actually allows children to see quite a bit.Ideal gift to arouse children's interest to explore natural. - - Microscope kit contains - 1 x microscope - 1 x plastic containers - 6 x blank label - 5 x speciment of glass - 2 x collection bottles - 1 x forceps - - MICROSCOPE OPERATING INSTRUCTIONS: - 1. Open the batteries compartment door after unscrewing the protecting screw. - 2. Insert two AA batteries, as directed in the compartment's bottom. - 3. Put back the protecting screw. - 4. Lift the nose piece as much as possible with the ...


Bestweekend DIY Class A 6J5 HIFI Headphone Amplifier Vacuum Tube Preamplifier Kit

Bestweekend DIY Class A 6J5 HIFI Headphone Amplifier Vacuum Tube Preamplifier Kit

Specification: - Size: 77mm * 75mm (L*W) - Weight: 79g - Frequency: 16 HZ - 28.5KHZ - Headphone impedance: 16-600Ω - SNR: > 108db - NE5532 or MC33078 op-amp - 6J5 low voltage power supply pre-made cushion, the sound is very warm. - Power supply requirement: ±12-15V DC power supply 10W above transformer, filament require 12V more than 2A - Default op amp NE5532 or MC33078 random delivery. - Package includes: - 1 x Headphone Amplifier DIY Kits - Note: - This is DIY Kit need you solder it by yourself, and many component is very small,so need you have some DIY ability, the unsuccessful DIY making is beyond the scope of our warranty. - We ...


XCSOURCE 1x2 HDMI Splitter 2 Port Repeater Amplifier V1.4 3D 4K 1080p for PS4 XBOX360 DVD Blu-ray HDTV AH279

XCSOURCE 1x2 HDMI Splitter 2 Port Repeater Amplifier V1.4 3D 4K 1080p for PS4 XBOX360 DVD Blu-ray HDTV AH279

This 1-in-2-out HDMI splitter / amplifier allows one HDMI devices such as Blue Ray DVD Player, Sky Box, PS3, Xbox360 etc. to be split to TWO HDMI Compatible Monitors, HDTV or Projectors. As it comes with the amplifier function, this 2 way HDMI splitter can be placed at the end of a long HDMI cable to enhance and regenerate the HDMI signal. - Features: - Fully supports 1920x1080P@60Hz and 3840¡Á2160@24Hz 4K HDTV - Synchronized and amplified outputs, supports high definition audio formats( DTS-HD Master Audio, Dolby\ True HD, 7.1 Channel audio and LPCM7.1). - Easy to use, share your HDMI signals (Sky HD, Blu-ray, PS3, XBox 360, 3D HDTV) to 2 HDMI displays (HDTV, Plasma, LCD, Projector). - ...


Amplicomms TV210-NL Amplified Digital Inductive NeckLoop

Amplicomms TV210-NL Amplified Digital Inductive NeckLoop

- Amplified digital Inductive neckloop, wireless transmission with tone and balance adjustment. Sound is transmitted directly to T Coil enabled hearing aids, cutting out sorrounding noises. Lightweight headset for long term use, built-in rechargeable battery with up to 9 hours continous use time. Wireless Infra Red transmission up to 7 metre range, easy plug-and-play connection, complete wireless solution. Supplied with a Twin charging pod, compatible with extra headsets or neckloops. With one-touch built-in close proximity Mic on the receiver. - Sensitive built-in microphone enables hearing surrounding close proximity area (personal on/off activation from the receiver). - 3.5 mm output in the receiver for optional connection of Stereo Earphones/Head Phones for Stereo listening through the receiver. - Completely wireless ...


Q-BAIHE QUAD 405 100W+100W Power Amplifier Kit

Q-BAIHE QUAD 405 100W+100W Power Amplifier Kit

Specification: - This is a kit,you need to solder it by yourself. - Voltage Supply: ≥ +/-30V, ≤ +/-50V - PCB Size: 118mmx90mm - Power: 50-100w 8R - Power Supply: 100W +/-50V - Feature: - Suite 2 for dual-channel board, including all the components power tubes, and insulating films, insulating particles. - All parts are brand new, original authentic. - Signal amplification transistors PHILIPS BC556B ST 2N5401 5551 - LM301A new original NS. All resistors are metal film resistors with genuine brass feet, 1% accuracy, including high-power resistor. - Output tube with a new imported original KTD 1047 10A 100W high-current power tubes. - Inductors are precision digital bridge through the manual measurement, accurate to 0.01UH 0.1%. ...


Q-BAIHE IRS2092 200W Class D mono amplifier board

Q-BAIHE IRS2092 200W Class D mono amplifier board

Product Description - Original IRS2092 ,IRFI4019 - Electrolytic capacitor use Nikon 330UF/100V*2, to ensure strong support for a steady stream of power. - Resistance using 0805 0603 high-precision chip resistors, ensure the machine a good signal to noise ratio. - PCB using 1.6mm thick sheet double-sided, 2.0 oz copper thickness, HASL whole process to ensure that the size of the current have a good performance. First-class quality. - Feature - Work: Class D - Quiescent Current: 20mA - Efficiency: 90% - Rated output power: 200W - Frequency response: 20Hz to 20KHz - Operating voltage:DC +-30V to +-60V - Recommended supply voltage: +-50V - Maximum output current: 8A - output impedance: 4-8 ohm - PCB Size: 87 * 58MM ...


Q-BAIHE JSDZ DIY Kit 6N3 Tube Buffer Amp Audio PreAmp

Q-BAIHE JSDZ DIY Kit 6N3 Tube Buffer Amp Audio PreAmp

Product Description - The buffer will 6N11 tube horizontal mounting, especially for low chassis installation, power requirements are very simple and requires only a single 12V / 10W transformer, rose through the onboard screen very needed boost line voltage. Followed by good audio input , and an audio output cable can work! ! - The buffer sophisticated materials, PCB solder black using advanced dual-panel, input and output coupling capacitors chosen selection of original Philips BC400V2U2 boost capacitor units produced LELON Lvpao 220UF / 50V electrolytic, input and output terminals using strong solid metal RCA, this buffer layout is reasonable, nice shape, is your upgrade. installed the best choice! - Feature - Kit Installation Note: Resistance PCB board is ...