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300W Stereo Amplifier PCB with Built-in Power Supply
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300W indoor amplifier PCB for high-power audio applications.
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4 NPN & PNP output transistors ensure efficient signal amplification.
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Rectifier included – ready to use with your dual AC supply.
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Compatible with 25+25V AC dual supply for versatile power options.
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Ideal for DIY enthusiasts and audio professionals seeking reliable performance.
₨ 220 -
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500W Mono Amplifier PCB – 8 NPN & PNP Output Transistors | 24.5×4.7cm Compact Design | High-Power Final Stage Board
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500W mono amplifier PCB – High-power output for demanding audio applications.
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8 NPN & PNP transistors – Ensures efficient heat dissipation and stable performance.
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Compact size (24.5cm x 4.7cm) – Fits easily into tight enclosures.
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Final stage design – Ready for integration with preamp modules.
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Durable construction – High-quality materials for long-term reliability
₨ 280 -
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DC to DC & AC to DC Power Supply PCB – Fiber Board | 10000µF Capacitor Support | 10.3cm x 10.8cm
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✅ Dual Functionality – Supports both AC to DC and DC to DC input types
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✅ High-Capacity Filtering – Space for 4x 10000µF & 1x 4700µF capacitors
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✅ Voltage Regulator Ready – Supports LM7812 and similar ICs
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✅ Fiber-Based PCB – Durable and heat-resistant for long-term use
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✅ Clear Silk Screen Markings – Easy assembly with labeled positions
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✅ Large Size – Dimensions: 10.3 cm x 10.8 cm
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✅ Multiple Output Terminals – Regulated and unregulated outputs available
₨ 280 -
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LM3886 68W Hi-Fi Mono Amplifier PCB – Premium Quality for Crystal Clear Audio
✅ High Power Output: 68W RMS mono power for robust, clear audio.
✅ Premium PCB: Double-sided fiber construction for durability and optimal signal integrity.
✅ LM3886 IC: Renowned for high-fidelity sound with low distortion.
✅ Compact Design: Just 37mm x 61mm—fits easily in custom enclosures.
✅ Stable Power Supply: Supports ±20V to ±28V for flexible power options.
✅ Easy Installation: Clearly labeled input/output terminals for hassle-free wiring.
✅ High-Quality Components: Includes 100μF capacitors, robust resistors, and optimized circuitry for smooth performance.₨ 280 -
2000W High-Power Bridge Rectifier PCB – Fiber-Based AC/DC Conversion Board (16.6cm x 7.6cm)
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2000W Power Handling – Robust performance for heavy-load applications
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Fiber-Based Construction – Superior heat resistance and longevity
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Optimized Layout – Low-EMI design with efficient heat dissipation
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Standard Dimensions – 16.6cm × 7.6cm for easy retrofitting
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Industrial Compliance – Meets power electronics safety standards
Technical Specifications:
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Model: N-050523D
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Input: AC (configurable voltage range)
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Output: DC with high-current capacity
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Mounting: Through-hole/Screw terminal compatible
₨ 290 -
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600W Outdoor Stereo Amplifier PCB (3.9″ x 8.5″ Compact Design) High-Power Audio Solution
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Power Output: 600W (300W+300W stereo)
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Transistors: 4x NPN + 4x PNP output pairs
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Frequency Response: 20Hz–20kHz (±1dB)
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THD: <0.05% at rated power
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Input Voltage: Dual supply (±25V to ±50V DC)
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PCB Dimensions: [Dimensions from image if visible]
Applications
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Outdoor concert/stage amplifiers
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Commercial PA systems
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Marine/RV audio upgrades
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High-power DIY audio projects
₨ 290 -
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Universal Transistor Amplifier PCB – Compatible with D313, 2N3055, D1047, 2SC5200
✅ Universal compatibility with 4+ transistor types
✅ Includes 4x IN5404 protection diodes
✅ Compact and space-saving design
✅ High-quality fiberglass PCB material
✅ Clearly marked solder points for easy assembly
✅ Ideal for 50W-200W amplifier projects
✅ Stable performance under heavy loads
✅ Suitable for audio repairs or custom builds
✅ Cost-effective alternative to OEM boards
✅ Model D104 with proven reliability₨ 290 -
High-Fidelity 650W Stereo Power Amplifier DIY Kit – Pro-Grade Dual Rail BJT Design
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🚀 Peak Output Power: 800 Watts Total (400W + 400W @ 4Ω Load).
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⚡ Operating Voltage: Dual Rail ±45V to ±70V DC (Symmetrical).
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🎸 Transistor Tech: Optimized for NPN/PNP Power Pairs (Class AB).
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🌈 Audio Fidelity: Ultra-low THD (Total Harmonic Distortion) for “Crystal Clear” highs.
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🛡️ Rugged Build: FR-4 Glass-Epoxy PCB with Extra-Thick Copper Paths.
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🎧 Channel Layout: True Stereo (Independent Left/Right inputs and outputs).
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🌡️ Thermal Design: Includes footprints for 0.47Ω 5W Emitter Resistors for heat stability.
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🎯 Versatility: Perfect for Subwoofers, Floor-standers, or Pro-Audio monitors.
₨ 360 -
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Premium Single-Sided Copper Clad DIY Universal PCB Plate (10×8 Inch)
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🔴 Premium Single-Sided Copper: Features a clean, uniform copper layer on one side, perfect for smooth etching and reliable soldering.
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🟢 Generous Sizing: Measures 10 Inch x 8 Inch, providing plenty of surface area for large designs or multiple smaller projects cut from a single sheet.
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🔵 DIY & Prototyping Ready: Excellent for toner transfer, photoresist, or CNC routing methods to create your own custom circuit boards.
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🟠 Sturdy Base Material: Built on a durable, heat-resistant laminate backing (marked with “HS” branding as seen in 20260613_220037.jpg) to prevent warping during soldering.
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🟡 Package Includes: 1x Single-Sided Copper Clad PCB Plate.
₨ 450 -
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600W Mono Amp PCB – 8x NPN/PNP Transistors + Op-Amp – 24.5x7cm Heavy Duty Board
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600W RMS mono power output (4-8Ω load compatible)
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8x matched NPN/PNP output transistors for high current handling
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Op-amp pre-drive stage with upgradeable IC socket
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Heavy-duty 24.5x7cm PCB with 2oz copper construction
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Wide voltage range (±25V to ±50V DC)
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Built-in thermal and overload protection
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UV-resistant coating for outdoor durability
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Low THD (<0.08%) and wide frequency response (15Hz-35kHz)
₨ 490 -
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750W High-Power Mono Amplifier PCB – Professional Audio Board with 10x NPN/PNP Transistors
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750W RMS mono power output for massive bass & PA systems
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10x high-current NPN/PNP transistors (2SC5200/2SA1943 type)
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0.07% THD for studio-quality sound clarity
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10Hz-30kHz frequency response captures full audio range
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2oz copper PCB with reinforced power traces
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Triple protection: thermal, overcurrent & DC offset
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±35V-±60V compatible for flexible power options
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>300 damping factor for tight speaker control
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Weather-resistant design (optional coating available)
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Pro-ready connections for easy integration
₨ 490 -
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750W Opamp Based Mono Amplifier PCB | 21.4cm x 8.1cm | 10 NPN & PNP Output Transistors
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🔊 750W High Power Output – Delivers strong mono channel performance.
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🔧 Opamp Based Design – Provides clear, crisp, and controlled audio quality.
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🔁 10 Output Transistors Support – Handles both NPN and PNP types for balanced output.
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📏 Board Size: 21.4cm x 8.1cm – Optimized for DIY and professional projects.
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🛠️ Bare PCB Board – Ready for custom assembly with your preferred components.
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🎯 Ideal for High Power Audio Projects – Car amps, custom speaker systems, and home audio builds.
₨ 500 -