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Introducing the 400 Watt Hi-Fi Mono Amplifier Board, expertly designed and assembled to provide unparalleled audio performance. This powerful amplifier utilizes industry-standard 2SC5200 and 2SA1943 transistors, ensuring ultra-low distortion and noise levels. This board is versatile and compatible with both 4 & 8-ohm speakers, making it suitable for usage with speaker power ratings ranging from 100 to 600 watts. With a working voltage of ±18 to ±45 Volt DC, it's recommended to pair this amplifier with a 30-0-30 VAC transformer rated at 5-8 Amperes. Ideal for various applications, this amplifier board excels in amplifying musical instruments, making it a perfect choice for guitar, keyboard, and banjo amplification. Its compact design allows for seamless integration into speaker enclosures, transforming them into high-performance setups. As a subwoofer amplifier, it delivers powerful amplification of low-frequency sounds, making it ideal for enhancing audio in public address systems and large gatherings such as family functions and wedding parties. Experience music like never before—clear and engaging, with a frequency response from 20 Hz to 50 KHz. The thoughtfully designed board measures 130 mm x 82 mm (5 inches x 3.2 inches) and comes complete with a fully assembled amplifier board, a quick reference guide, and a circuit diagram for ease of use. Whether you’re setting up a home audio solution or requiring high-fidelity performance for professional audio setups, this amplifier delivers best-in-class performance for all your audio needs.
The 12 Volt 10 Ampere Solar Charge Controller is specifically designed for solar street lighting applications. It efficiently manages the charging of batteries from solar power to ensure optimal performance. The controller supports solar panels with a power output ranging from 10 watts to 100 watts and features an open circuit voltage of 17V to 24V DC. It utilizes advanced Op-Amp controlled P-Channel MOSFETs for high-efficiency linear voltage regulation while achieving a low dropout voltage of only 0.7 volts. This makes it an ideal choice for charging various types of batteries, including lead-acid, sealed lead-acid (SLA), nickel-cadmium, and lithium batteries, with capacities between 1 Ah and 60 Ah. Additionally, the controller supports LED lights ranging from 1 watt to 50 watts, allowing seamless integration into your solar street lighting applications. One of the standout features is its dusk-to-dawn functionality, controlled via an LDR and powered by an N-Channel MOSFET, capable of handling up to 50 watts of load. It also includes a USB charging port (5V, 1.5A), offering additional convenience for charging devices. Designed with standard components, this PCB-based controller is easily assembled and maintained, making it a low-cost solution for solar energy applications yet providing reliable performance.
The 12 Volt 10 Ampere Solar Charge Controller/Charger is a robust and efficient solution for managing solar energy systems used in street lighting applications. Designed with convenience and performance in mind, this assembled board provides a reliable charging solution for various battery types, leveraging features like dusk to dawn functionality and USB charging ports. The controller supports solar panels ranging from 10 watts to 100 watts, ensuring compatibility with many solar setups. Its innovative design includes an op-amp controlled P-channel MOSFET for linear voltage control and high efficiency during the charging process. The product is tailored for 12 volts systems, making it ideal for powering LED street lights rated between 1 watt and 50 watts. The built-in dusk to dawn feature ensures that lights automatically turn on at night and off during the day, controlled by an LDR and a high-rated N-channel MOSFET that can handle loads up to 50 watts. Additionally, the USB charging port allows for fortified charging of mobile devices or other electronics. Standard components make assembly and replacement hassle-free, providing an economical alternative to similar products in the market while maintaining high quality and performance standards.
The 12V Stereo Speaker Protection Board is an essential component for audio professionals and hobbyists looking to safeguard their speaker systems from potential damage. Designed to handle high current capacities of up to 10 Amperes, this dual-channel protection board utilizes a standard sugar cube relay for reliable operation and error detection. It features easy-to-read indicators for both error and standard operation, aiding in quick troubleshooting. The board offers DC detection capabilities that can activate protection mechanisms with as low as 2 volts of DC, ensuring that your speakers remain safe from harmful signals. This protection board is compatible with both stereo and mono audio power amplifiers, making it a versatile addition to any audio setup. It operates effectively with a working voltage range of 0 to 12V AC, ensuring broad usability across various devices. Additionally, the protection board offers a crucial turn-on delay of 2 to 5 seconds, providing an extra layer of safety by mitigating on/off transients that can harm speakers. Constructed using standard components available at local electronics stores or online, this assembled board ensures straightforward soldering and replacement processes due to its use of through-hole components, eliminating the complication of surface-mount device (SMD) soldering. Ideal for both professional audio systems and DIY projects, the 12V Stereo Speaker Protection Board delivers reliable performance while offering peace of mind against electrical faults.
The 12 Volt 10 Ampere Solar Charge Controller / Solar Charger is a robust assembly designed for efficient energy management in solar applications. This controller supports solar panels ranging from 10 watts to 100 watts and has an open circuit voltage between 17V to 24V DC, managing a maximum output current of 10 Amperes. It is equipped with an operational amplifier-controlled P-channel MOSFET for linear voltage control charging, ensuring high efficiency and stability in energy transfer. This device is highly versatile, supporting various battery types including Lead Acid, Sealed Lead Acid (SLA), Nickel-Cadmium (Ni-Cd), and Lithium batteries with capacities from 1 Ah to 60 Ah. The controller also has a built-in Dusk to Dawn function, utilizing an LDR-controlled N-channel MOSFET, supporting loads up to 50 watts, ideal for LED street lights and panels ranging from 1 watt to 50 watts. All components used in this product are standard through-hole components easily found in local stores, making repairs and upgrades straightforward and cost-effective. This solar charge controller stands out due to its affordability, ensuring significant savings compared to similar products on the market.
Introducing our state-of-the-art 12V Stereo Speaker Protection Board, designed specifically for protecting your dual-channel speaker systems from harmful DC voltages and transients. With a maximum output current of 10 amperes, this new version PCB features a robust standard sugar cube relay, ensuring reliable performance in safeguarding your speakers. Its innovative design includes error and OK LEDs for straightforward fault diagnosis, allowing users to quickly identify issues without technical expertise. The board also incorporates a 1 to 2-second turn-on delay, further enhancing speaker protection by buffering against sudden power fluctuations. Whether you're dealing with just 2 volts of DC or more, this protection board is engineered to detect DC leakage, preventing it from turning on the relay and thereby ensuring your speakers remain unharmed. Operating efficiently with a voltage range of 0 – 12V AC, the board's power supply rectifier and voltage regulators are built-in, enabling compatibility with up to 30 Volts AC supply. Constructed with only standard through-hole components, this PCB not only simplifies soldering and component replacement but also makes procurement easier as all parts are readily available at local electronics shops. Cost-effective and efficient, this speaker protection board enables exceptional speaker care while delivering substantial savings compared to similar products in the market.
The 200 Watt HiFi Mono Amplifier Board is engineered for audio professionals and enthusiasts looking for a reliable and powerful amplification solution. Utilizing top-grade components, including 2SC5200 and 2SA1943 power transistors, this assembled board is perfect for various audio applications. It boasts an ultra-low Total Harmonic Distortion (THD), making it an ideal choice for guitar amplifiers, home theaters, studio monitors, and musical instrument amplifiers. This compact board supports 4 & 8 ohm speakers and can handle between 100 to 300 watts of speaker compatibility, confirming its versatility in different setups. Operating within a voltage range of ±18 to ±45 Volt DC, it is most effective when paired with a transformer rated at 30-0-30 VAC at 3-5 amperes. To facilitate assembly and troubleshooting, a detailed wiring diagram, bill of materials (BOM), and instructions are included with every unit. The frequency response of 20 Hz to 50 KHz enables high-fidelity amplification of musical instruments such as guitars, keyboards, and banjos, making this amplifier board an essential addition to any audio setup. Whether you're building a custom speaker box, a powerful subwoofer amplifier, or a public address system for events, this amplifier board guarantees crystal-clear audio performance with unmatched clarity.
The TDA7388 TDA7389 45W x 4 Channel Audio Amplifier is a robust and versatile PCB design that delivers high-power audio amplification in a compact form factor. Designed specifically for audio enthusiasts looking for superior sound quality, this amplifier features an impressive output of 45 watts RMS per channel (totaling 180 watts) when paired with 8-ohm speakers. With a remarkably low Total Harmonic Distortion (THD) of only 0.15%, it ensures clean and distortion-free sound reproduction. This amplifier supports various speaker impedances, including 4 and 8 ohms, making it adaptable for different audio setups. Supplying a steady +12 volts DC voltage, it is ideal for applications where space is at a premium. The compact dimensions of 158 x 54 mm mean that this amplifier can easily fit into tight spaces. It is also ready for various configurations such as 3-way active filters, bi-amping, bi-wiring, and various channel amplification setups including 4.1, 5.1, and 7.1 audio systems. Whether you are a professional looking to integrate high-quality sound into a custom installation or a hobbyist eager to enhance your audio setup, the TDA7388 TDA7389 amplifier PCB serves as a perfect building block for your next audio project.
The LM3914 LM3915 10 LED VU Meter Sound Level Indicator is an expertly assembled board designed to showcase sound levels with precision and clarity. Ideal for audio enthusiasts and professionals, this compact PCB provides a reliable and cost-effective solution for visualizing audio signals. Operating at a supply voltage range of +9 to +18 volts, with a recommended battery voltage of +12 volts, it caters to various user needs. Simply connect the speaker output parallely to the Sig. IN connector, and adjust the RV1 for optimal performance. The meter uses 10 LEDs, which can either be 3 mm or 5 mm in size, for a bright and effective display. The board operates in bar mode, where pin 9 is connected to the positive supply for enhanced visibility. Measuring just 38 mm x 72 mm (1.5 inches x 2.8 inches) with a thickness of 1.6 mm, this low-cost VU meter is an exceptional choice for anyone looking to integrate a sound level indicator into their audio system or project.
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