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12V AC Op-Amp Bass Mid Treble Tone Control PCB Board | Dual LM358 Preamp Equalizer Board for Home Theater & Audio DIY
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🔴 12V AC Transformer Ready: Directly connects to standard 12V AC power supply inputs for seamless system integration.
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🟢 Dual LM358 Architecture: Uses two operational amplifiers to process independent sound frequencies cleanly.
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🟡 Precision Frequency Control: Fine-tunes bass, midrange, and treble levels for optimal audio balance.
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🔵 Ultra-Clear Silkscreen: Clearly labeled component positions streamline resistor, capacitor, and IC placement.
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🟣 Onboard Rectifier Circuit: Features designated slots for 1N4007 diodes and filter capacitors to handle AC power input.
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🟠 High Signal-to-Noise Ratio: Delivers clean audio pre-amplification with minimal distortion or hum.
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🟤 Compact Layout: Space-saving footprint fits effortlessly inside amplifier cabinets and project boxes.
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⚪ Durable Circuit Board: Sturdy board layout built to withstand heat during component assembly.
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🟦 Universal Audio Compatibility: Connects smoothly between audio input sources and main power amplifier boards.
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🟩 Ideal for DIY Builders: Perfect foundation for custom sound systems, karaoke setups, and active equalizers.
₨ 75 -
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400 Watts Outdoor Mono Amplifier PCB – Compact Power for Clear Sound
- High Power Mono Output – Delivers strong, distortion‑free sound.
- Fiber Board Durability – Built to withstand heat and stress.
- Compact Design – Fits easily into amplifier enclosures.
- Outdoor Performance – Ideal for open‑air setups.
- Easy Component Placement – Clearly labeled for quick assembly.
- Stable Current Flow – Ensures consistent audio output.
- Wide Resistor Range – Supports flexible circuit tuning.
- Reliable Transistor Support – Compatible with C5200 and A1943.
- DIY Friendly – Perfect for hobbyists and technicians.
- Trusted Brand – Quality assurance from Shehzad Electronics.
₨ 180 -
High Power Stereo Amplifier PCB – 200W to 400W Fiber Board
- High Power Output – Delivers up to 400 W stereo sound.
- Fiber Board Durability – Heat‑resistant and long‑lasting.
- Easy Assembly Layout – Clearly labeled component positions.
- Wide Transistor Support – Works with multiple transistor models.
- Stable Current Flow – Ensures consistent audio performance.
- Compact Design – Fits neatly into amplifier enclosures.
- Professional Finish – Clean silkscreen labeling for precision.
- Enhanced Audio Clarity – Reduces distortion and noise.
- DIY Friendly – Perfect for hobbyists and engineers.
- Trusted Brand – Quality guaranteed by Shehzad Electronics.
₨ 450 -
PRO-SERIES 200W D1047 STEREO AMPLIFIER PCB
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🔊 Dual-Channel Stereo: Complete Left and Right channel amplification on a single, high-quality board.
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💎 Quad D1047 Power: Utilizes four D1047 NPN transistors for a balanced and punchy output.
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⚡ 200W Total Power: Delivers 100W per channel, perfect for 8-inch to 10-inch home speakers.
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📏 Extended PCB Design: Large 14.6cm x 8cm layout provides better airflow and easier soldering.
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🛠️ Error-Proof Assembly: All component values are printed directly on the board for a “no-manual” assembly experience.
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🌡️ Integrated Heat Management: Linear transistor alignment allows for direct mounting to a single aluminum heat sink.
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🔋 Efficient Voltage Range: Optimized for 25V-0-25V AC input, making it compatible with standard 5A-7A transformers.
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🛡️ Built-in Power Section: Features dedicated slots for large filter capacitors ($4700\mu F$ or higher) for hum-free audio.
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🔌 Versatile Connectivity: Separate pads for Ground (GND), Speaker Out (SP), and Audio Input (IN) for clean wiring.
₨ 110 -
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ULTRA-POWER 300W MOSFET MONO AMPLIFIER PCB
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💎 Dual N-Channel Output: Utilizes two IRF240 MOSFETs for superior current handling and a rich, musical audio signature.
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⚡ High Power Delivery: Capable of pushing a massive 300 Watts RMS in mono configuration for high-impact sound.
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🔋 Wide Voltage Range: Optimized for Dual $56V$ DC operation, allowing for maximum dynamic range and headroom.
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🛠️ User-Friendly Silk Screen: Features ultra-clear component labeling, making it easy for hobbyists to populate and solder with zero errors.
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🌡️ Advanced Thermal Logic: Designed with dedicated mounting spaces for BD139 and MJE series driver transistors to manage heat effectively.
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🔊 Subwoofer Ready: The high current output makes it an ideal choice for driving large-diameter subwoofers with tight control.
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📐 Space-Saving Footprint: The pro-engineered $10\text{cm} \times 9\text{cm}$ PCB fits easily into standard amplifier chassis and heat sinks.
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🛡️ Premium Build Quality: Manufactured on a high-grade glass epoxy substrate for long-lasting durability and heat resistance.
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🔌 Flexible Inputs: Includes dedicated pads for Audio Input, Ground, and Speaker Output for clean and easy wiring.
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🏗️ Heavy-Duty Support: Supports large-wattage ceramic resistors and high-voltage electrolytic capacitors ($80V$) for stable performance.
₨ 150 -
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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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DIY Bass Treble Tone Control PCB Board – High-Quality Audio Preamp Circuit
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Complete Tone Control: Includes dedicated mounting points for Bass, Treble, and Balance potentiometers to customize your sound output.
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Clearly Labeled Silkscreen: All component values (e.g., 1K, 10K, 10uF) and polarities are printed directly on the board for error-free assembly.
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Standard Component Support: Designed to use common, easy-to-find components like C945 transistors and standard resistors.
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Dual Input/Output Design: Features designated Input and Output solder pads for easy integration between your audio source and amplifier.
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Compact JML 09 Design: A space-saving layout that fits easily into custom amplifier chassis or project boxes.
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Wide Supply Range: Includes a dedicated Supply section (+/-) for powering the preamp circuit.
₨ 50 -
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Single Side Veroboard – Straight Line Style – 24 Lines (6.5cm x 14.5cm)
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✅ Board Style: Straight Lines – Ideal for clean and structured circuit routing
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✅ Lines: 24 Copper Tracks
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✅ Size: 6.5cm x 14.5cm – Perfect for most prototyping needs
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✅ Material: Durable FR2 Phenolic Laminate with Single Side Copper Coating
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✅ Hole Pitch: 2.54mm – Standard spacing for through-hole components
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✅ Hole Diameter: ~1mm – Fits most component leads
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✅ Applications: Prototyping, DIY projects, academic experiments, small circuits
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✅ User-Friendly: Easy to cut, drill, and solder
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✅ Brand: Shehzad Electronics – Trusted quality for electronics components
₨ 90 -
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Single Side Veroboard – Breadboard Style PCB | 116 Tracks | 6.5cm x 14.5cm
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✅ Type: Breadboard Style Veroboard (Strip Board)
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✅ Board Style: Single Sided Copper Tracks
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✅ Track Lines: 116 Horizontal Lines
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✅ Hole Pitch: 2.54mm (Standard Spacing)
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✅ Dimensions: 6.5cm x 14.5cm
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✅ Material: High-quality FR2 / Phenolic Laminate
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✅ Compatible With: Resistors, ICs, Capacitors, Transistors & More
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✅ Ideal For: DIY circuits, learning electronics, prototyping, and small project development
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✅ Brand: Shehzad Electronics
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✅ Easy to Cut, Drill, and Solder
₨ 90 -
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TDA7294 100W Mono Amplifier PCB – High-Power Audio Board for Professional Sound Systems
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🔊 High-Power Output: Delivers up to 100W RMS @ 4Ω and 70W @ 8Ω.
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💎 Premium Audio IC: Built around the trusted TDA7294 for high-fidelity performance.
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📐 Mono Channel Design: Ideal for subwoofers or dedicated speaker applications.
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🔋 Wide Voltage Support: Operates from ±25V to ±40V DC for flexible use.
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🧱 Professional PCB Layout: Engineered for optimal heat dissipation and reliability.
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🔧 Heavy-Duty Construction: Thick copper traces for improved power handling.
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🎵 Low Distortion: <0.1% THD ensures clean and detailed sound output.
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🔌 Input Sensitivity: Requires only 1V RMS for full power output.
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🛡️ Built-in Protections: Includes short-circuit, thermal, and mute/standby functions.
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🛠️ DIY & Pro Ready: Suitable for subwoofers, home theaters, and custom audio builds.
₨ 75 -
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TDA2030/TDA2050 Mono Amplifier PCB – High Power 14W-32W Audio Board
1️⃣ Dual IC Support – Compatible with TDA2030 (14W) and TDA2050 (32W)
2️⃣ Premium 1000μF Capacitor – Ensures stable power and enhanced bass response
3️⃣ Low Distortion – <0.5% THD for clean audio reproduction
4️⃣ Wide Voltage Range – Works with ±12V to ±18V DC power supplies
5️⃣ Robust Construction – Thick copper traces for durability and heat dissipation
6️⃣ Compact Design – Space-efficient layout for easy integration
7️⃣ Clear Terminal Labeling – Simplified wiring for quick installation
8️⃣ Versatile Applications – Ideal for subwoofers, PA systems, and car audio
9️⃣ High-Quality Components – Professional-grade parts for reliable performance₨ 45 -
2.1 Amplifier Board, TDA2030 BTL Circuit, LM1875 Audio PCB, 36W Subwoofer Amplifier
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🔊 Triple Output: Delivers 18W x 2 (stereo) + 36W (subwoofer) for powerful 2.1 channel audio.
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🔌 Dual AC Power Support: Compatible with 12V-0-12V to 15V-0-15V transformer input.
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🎚️ Dual IC Compatibility: Supports both TDA2030 (warmer sound) and LM1875 (cleaner highs).
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🎵 BTL Technology: Enables efficient 36W subwoofer output with deep, punchy bass.
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🔍 Low Distortion: Less than 0.2% THD ensures crystal-clear sound reproduction.
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⚡ Stable Power Handling: Performs consistently across varying input voltages.
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🛡️ Low-Noise Design: Carefully routed layout reduces interference and hum.
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💪 Robust PCB: Thick copper layers ensure better heat dissipation and longevity.
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🧰 Plug-and-Play: Clearly labeled component and terminal markings for easy assembly.
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🏠 Compact & Versatile: Perfect for DIY projects, car audio, or home theater systems.
₨ 105 -