- Power amplifier 60W Class A
- Power Amplifier 50W
- Power amplifier 65W with HEXFET
- Headphone Amplifier
- Trainwreck Express Guitar Amplifier
- Headphone Amplifier
- 10W Mini Audio Amplifier
- 10W Audio Amplifier with Bass-boost
- Amplified Ear
- 10 Watt Amplifier
- 20 dB Amplifier and High current balanced line driver.
- 80W Operational Amplifier
- 8 watt Audio Amplifier
- 2 x 220W RMS Audio Amplifier
- 3 - 5 Watt Class-A Audio Amplifier
- 2 Watt Audio Amplifier
- 50 Watt Amplifier
- 4-WATT AF AMPLIFER
- Amplifier 2x30W with STK465
- 20 Watt / Channel Stereo Power Amplifier
- 20 Watt Power Amplifier
- A Really Simple Power Amplifier
- Single Chip 50 Watt / 8 Ohm Power Amplifier
- 1,500W / 4 Ohms Power Amplifier
- Subwoofer Amp
- GainClone Amplifier
- Class-D Audio Power Amplifier
- Opamp Based Power Amplifier
- 25W Class-A Hi-Fi Power Amplifier
- 8 Watt Amplifier
- 60W Bass Amplifier
- 70W Class AB Hi-Fi Amplifier
- 60W Guitar Amplifier
- 60-100W Hi-Fi Power Amplifier
- Simple Current Feedback Power Amplifier
- 300W Subwoofer Power Amplifier (Updated)
- 60 Watt Into 8 Ohms Power Amplifier
- Low distortion 30W audio amplifier
- 60W Power Amplifier
- Improved 3 Transistor Audio Amp (80 milliwatt)
- Bridged Amplifier 15W/4Ω
- Guitar Amplifier
- Power Amplifier 45W with HEXFET
- Tube power amplifier 5W with EL84
- Motorola Hi-Fi power amplifier
- Pocket headphone amplifier
- 8 Watt Amplifier
- Headphone Amplifier
- Quadraphonic Amplifier
- Portable headphone amplifier
- 25 Watt MosFet Audio Amplifier
- 2N3055 Power Amplifier
- 18W Audio Amplifier
- 60w Mosfet Audio Amplifier
- 10W Mini Audio Amplifier
- Leslie 122 Rotor and Reverb Amplifier
- Ampeg M-12-A Amplifier
- Low impedance microphone amplifier
- Portable Headphone Amplifier
- 100W RMS Amplifier
- 300W Subwoofer Power Amplifier
- Trainwreck Express Guitar Amplifier
- Headphone Amplifier
- ZUPER POWER AMPLIFIER
- Headphone amplifier with TDA2004
- 45 Watt Single Chip Amplifier
- Power amplifier 60W/8Ω
- 10-W Class A Amplifier
- 100 to 150 Watt Amp
- 100W Audio Amplifier
- 100W Guitar Amplifier
- 100W RMS Amplifier
- 200W audio amplifier
- 250 Watt Amplifier
- 2-TRANSISTOR AUDIO AMPLIFIER
- 25 Watt MosFet Amplifier
- 22 Watt Audio Amplifier
- 20W Class-A Amplifier
- 22 Watt Audio Amplifier
- 16 watt amplifier
- 110 mW Amplifier Schematic
- 15 Watt Amplifier
- 16 Watt Bridge Amplifier Schematic
- 18W Audio Amplifier
- 15 Watt Tube Amplifier
- Mini-box 2W Amplifier
- 2 Watt Audio Amplifier
- 2 Watt Amplifier Schematic
- 10-Bit Bridge Sensing Circuit Using the PIC16C6XX and MCP601
- Bridging enhances filter close-in selectivity
- Bridging Adapter For Power Amplifiers
- Bridge Sensing with the MCP6S2X PGAs
- 80W Operational Amplifier
- LM12 Simple Power Amplifier
- 100W Guitar Amplifier
- 100W Guitar Amplifier 2
- Mini 10W Amplifier
- 1W Amplifier
- 10 Watt Audio Amplifier
- 100W Audio Amplifier
- 100W Guitar Amplifier Schematic
- 15 Watt Amplifier
- 18W Audio Amplifier
- 2 Watt Audio Amplifier
- 2x20 Watt Stereo Power Amplifier
- 22 Watt Audio Amplifier
- 20W Class-A Amplifier
- 22 Watt Stereo Amplifier
- 25 Watt MosFet Audio Amplifier
- 2 channels preamp mixer
- 300W Subwoofer Power Amplifier
- 50 Watt Amplifier
- 60W Guitar Amplifier
- 8 Watt Amplifier
- 200 Watt audio amplifier
- Telephone Headset Amplifier
- AF power amplifier
- AF power amplifier II
- 3 Transistor Headphone Amplifier
- 10 Watt Guitar Amplifier
- Portable Headphones Amplifier
- Class-A 100W Amplifier
- Stereo Headphone Amplifier
- Two Transistors Audio Amplifier
- Stereo Amplifier
- Quadraphonic Amplifier
- Class-A Power Amp
- 50 Watt Power Amplifier
- magnetic pickup amplifier
- OpAmp LM741 circuits
- 100W Class-A//AB Amplifier
- Amp with Tone Controls & Soft Switching
- Headphone Amplifier
- Headphone Amplifier
- MosFet Audio Amplifier
- 2W Amplifier
- 14 Watt Audio Amplifier
- 68-Watt Amplifier with LM3886
- PracticeMan - guitar amplifier
- Headphone Amplifier
- Amplifier Bridging
- Hi-Fi Headphone Amplifier
- Class-A Power Amp
- Biasing Op-Amps into Class A
- Amplifier based on LM4780
- 20W TPA3001D1EVM class-D audio amplifier
- True digital audio amplifier (TDAA) system
- Simple amplifier with LM386
- TDA1554 / 22W Stereo Amplifier
- Loudspeaker as a Microphone
- 20 Watt Audio Amplifier
- 10 Watt Power Amplifier (TDA2030)
- LM390 Bass Amplifier
- Mini Audio Amplifier
- 100 watt power amplifier
- 60W Power Amplifier with 2N3055
- 200W audio power amplifier
- 2x 2,500W RMS stereo amplifier
- 25W Mosfet audio amplifier
- 2x30W audio amplifier (STK465)
- 60W Bass Amplifier and Preamp
- 50 Watt Amplifier ICL8063
- 80W power amplifier MJ3001 and MJ2501
Stereo Schematics
- Stereo Synthesizer
- Stereo VU Meter
- EM Field Probe with Meter
- 2W Amplifier
- Panner Waveform Generator
- FM stereo multiplex generator
- Micro Power FM Broadcasting
- Stereo FM Transmitter
- HI-FI Stereo Encoder / Multiplexer
- 200mW FM transmitter
- Colour (Sound) Organ
- Bass -Treble Tone Control
- CD-ROM Drive as Digital-audio CD-Player
- TDA1554 / 22W Stereo Amplifier
- Surround Sound Decoder
- TDA1524 Stereo Tone Control
- low pass filter subwoofer
- 2x 2,500W RMS stereo amplifier
- 2x30W audio amplifier (STK465)
- PC Spectrum Analyzer
- 2x20 Watt Stereo Power Amplifier
- 22 Watt Stereo Amplifier
- 25 Watt MosFet Audio Amplifier
- 50 Watt Amplifier
- dish microphone
- Portable Mic Preamplifier
- Simple microphone preamplifier
- Simple microphone pream
- Voltage Controlled Panner
- 2 lines FET Audio Mixer
- Stereo Audio signal Isolator
- Audio stereo Panner
- Panner Waveform Generator
- Stereo Headphone Amplifier
- 2x10 LED VU Stereo Meter
- 4 lines Stereo Mixer
- Stereo Amplifier
- Color Organ
- EM Field Meter
- Simple Surround Processor
- Simple Surround Sound Decoder
- Cut Phone Line Detector
- Control 32 DAC channels via a parallel port
- 25 Watt MosFet Amplifier
- Mini-box 2W Amplifier
- Bridging Adapter For Power Amplifiers
- 12 Volt 20 Amp Solar Charge Controller
- Micro Power FM Circuits
- Class A2 SV811-10 Stereo Amp
- Push-Pull Class A 2A3 Stereo Amp
- Audio Auto Shutoff
- 12 to 120 Volt Inverter
- NTE789 Stereo Multiplex Decoder
- Stereo Decoder Circuit
- Stereo Decoder for FM Tuner
- TDA1591 PLL stereo decoder
- Mobile MP3 Player PC
- Voltage Controlled Panner
- LED VU Stereo Meter
- Stereo preamp
- Stereo Mixer Schematic
- Stereo Tube Amplifier
- 100W RMS Amplifier
- Stereo Equalizer and Balance
- The Big-E Stereo Parabolic Microphone
- Boundary-layer dish microphone
- Digital Volume Control
- FET Audio Mixer
- Simple Surround Processor
- Stereo Audio Isolator
- Stereo Channel Selector
- Three-Level Audio Power Indicator
- IR Remote Control Jammer
- Three-Level Audio Power Indicator
- VU Stereo Meter
- CD-ROM Drive as Digital-audio CD-Player
- Inverter
- Video Switch
- 8x Stereo audio/video distribution router
- Stereo Preamplifier with Bass-boost
- Bass-treble tone control circuit
- Simple microphone preamplifier
- Bass-treble tone control circuit
- Battery-Powered Stereo Balance Control Features Low Distortion
- Stereo Width Controllers
- Micro Power FM Broadcasting Circuits
- Hear Amateurs on your FM Radio!
- REGENERATIVE RECEIVER
- Inverter
- 12 Volt DC to 120 Volt AC Inverter
- 25 Watt MosFet Audio Amplifier
- 5 band graphic equalizer using a single IC/chip
- Simple microphone preamplifier
- Portable Microphone Preamplifier
- FET Audio Mixer
- Stereo Mixer
- Audio Mixer - Transistorized
- Stereo Width Controller
- 6-Band Graphic Equalizer
- Portable Microphone Preamplifier
- Simple Stereo Electret Microphone Preamplifier
- Modular Preamplifier with IC Class A
- 5 band graphic equalizer using a single IC/chip
- 2Channel + Microphone Stereo Mixer
- 50 Watt Amplifier
- 20 Watt / Channel Stereo Power Amplifier
- Class-D Audio Power Amplifier
- Headphone Amplifier
- Stereo Tube Amplifier
- Portable headphone amplifier
- Portable Microphone Preamplifier
- Stereo Preamplifier with Bass-boost
- Stereo Preamplifier with Bass-boost
- Stereo Preamplifier with adjustment tone
- A Buffered Headphone Driver
Preamplifiers Schematics
- Simple Phono Preamplifier
- Soundblaster Preamp
- Audio Booster
- Electret Microphone Preamplifier
- Audio splitter
- Loudspeaker as a Microphone
- low pass filter subwoofer
- Phono Preamps For All
- Sound Blaster Microphone Preamplifier
- Simple High Quality Preamp For Hi-Fi
- Hi-Fi Phono Preamp (RIAA Equalisation)
- Phono Preamp
- Vinyl Pre-Amplifier
- Simple High Quality Preamp For Hi-Fi
- Low Voltage Preamplifier
- Audio Pre-Amplifier
- Simple microphone preamplifier
- Phono Preamplifier
- Audio preamplifier circuits
- Preamplifier
- Single ic preamp
- Stereo preamp
- Microphone pre-amp
- One transistor Audio Preamp
- All transistor microphone pre-amplifier
- Hi quality Phono Preamplifier
- Audio Line preamp Driver
- Stereo Preamplifier with adjustment tone
- Moving Coil Head Pre-preamplifier
- A Buffered Headphone Driver
- Three Tube PHONO (RIAA) Preamplifiers with ECC83
- Low Voltage Preamplifier
- Stereo Preamplifier with Bass-boost
- Audio Line High-End Preamplifier with ICs
- Low Noise Microphone Preamplifier
- Modular Class A Buffer preamplifier
- Phono Preamplifier
- ECM Mic Preamplifier
- ECM Mic Preamplifier
- Phono Preamplifier
- Modular Audio Preamplifier
- Simple microphone preamplifier
- Single IC Audio Preamplifier
- Intercom preamp - Universal high quality preamp
- Sound Blaster Microphone Preamplifier
- Phono Preamp
- MASTHEAD PREAMP
- High-End Audio Modular Preamplifier
- Phono RIAA Preamplifier
- Portable Microphone Preamplifier
- A Precision Preamplifier-Power Amplifier System
- Simple Stereo Electret Microphone Preamplifier
- Modular Preamplifier with IC Class A
- Audio Preamplifier with Digital Volume
- Minimalist Discrete Hi-Fi Preamp
- Phono RIAA Preamplifier
- Symmetrical Audio Class A preamplifier
- Hi-Fi Preamplifier
- RIAA Phono Preamp
- Hi-Fi Preamplifier
- Audio Line Driver
- Portable Microphone Preamplifier
- Stereo Preamplifier with Bass-boost
- Stereo Preamplifier with Bass-boost
- Dynamic Microphone Preamp
- Phono Preamplifier
- Tube Line Preamplifier Project
