(AN-36) LX5506M High Gain, High Efficiency Power Amplifier (Also see LX5506 and LX5506B):  Application Note Microsemi 1701 (added 2/07)

10 Watt Power Amplifier:  Simple Class A Amplifiers (added 6/06)

100W Guitar Amplifier:  (circuit / schematic design added 2/07)

100W RMS Amplifier:  This is a 100 watt basic power amp that was designed to be (relatively) easy to build at a reasonable cost. It has better performance (read: musical quality) than  standard STK module amps that are used in practically every mass market stereo receiver manufactured today. When I originally built this thing, it was because I needed a 100 WPC amp and didn't want to spend any money. So I designed around parts I had in  shop. (added 2/07)

12 Watt Valve Guitar Amp:  (electronic diagram added 2/07)

2.8 GHz prescaler keeps cost down:  07)/20/00 EDN-Design Ideas / (added 6/06)

20 Watt Power Amplifier:  Designed to be used as car amplifier (added 4/02)

220 Watt Power Amplifier:  This is a building plan for an audio Amplifier with2 x220-Watt output power. Text is in Finnish. (added 3/06)

2304 and 3456 MHz Power Amplifiers:  (electronic circuit added 4/05)

25L6 Amplifier:  (electronic circuit added 9/06)

270 Watt Amplifier:  (electronic circuit added 9/06)

27MHz toy car Transmitter:  (circuit / schematic design added 6/06)

30 Watt Amplifier:  (project / circuit added 9/06)

30 Watt Power Amplifier:  Ultra-Low distortion30-Watt Power Amplifier (added 6/06)

4 In/1 Out Summing Power Amplifier :  (circuit / schematic design added 6/06)

4W amplifier: 

55 Watt (Originally 75W) Power Amplifier:  (circuit / schematic design added 6/06)

60 Watt into 8 Ohms Power Amplifier:  A simple amp to build, uses commonly available parts and is stable and reliable (added 6/06)

60 Watt Power Amplifier :  (schematic added 9/02)

75 Watt Power Amplifier:  AKSA is a highly refined push pull solid state stereo Amplifier of 75-Watt per channel (added 6/06)

A High-Efficiency 400 Watt 13.56 MHz RF Power Amplifier:  Application Note Microsemi formerly Advanced Power APT9501(added 1/07)

Ampli MOSFET  :  DIY high power MOSFET amplifier200 Wrms 8 ohms -350 Wrms4 ohms / (added 6/06)

AN-211: The Alexander Current-Feedback Audio Power Amplifier:  AN-211 Analog Devices Application Notes  (app note added 6/06)

AN-60-009  High IP3, wide band, balanced linear power Amplifier (HELA-10):  Application Note MiniCircuits.com  (app note added 6/06)

AN-60-033  Enhanced Linearity in the HELA-10 Power Amplifier:  Application Note MiniCircuits.com  (app note added 6/06)

AN-673: 2-Way Multiplexed LCD Drive and Low Cost A/D-Converter using V/F Techniques with COP8 Microcontrollers:  National Semiconductor Application Note   (app note added 6/06)

AN794: Power Considerations for the TC4864 Audio Power Amplifier:  Microchip Application Note Published 18-Jul-01   (app note added 2/06)

AN808: Using the TC1142 for Biasing a GaAs Power Amplifier:  Microchip Application Note Published 12-Nov-02   (app note added 2/06)

App Note 19 - Stability for Power Amplifiers:  Apex Microtechnology Corp App Note (added 6/06)

App Note 20 - Bridge Mode Operation of Power Amplifiers:  Apex Microtechnology Corp App Note (added 6/06)

App Note 21 - Single Supply Operation of Power Amplifiers:  Apex Microtechnology Corp App Note (added 6/06)

App Note 28 - Proper Analog Wiring of Power Amplifiers:  Apex Microtechnology Corp App Note (added 6/06)

Bridge Mode Operation of Power Amplifiers - App Note 20:  Apex Microtechnology Corp App Note (added 6/06)

Capacitance Multiplier Power Supply for Class-A Amplifiers:  (electronic circuit added 4/05)

Design of Power Amplifier Using the UPG2118K (7/20/04) :  Application Note California Eastern Laboratories Doc #957  (app note added 6/06)

Driver Amplifier with Power Booster Amplifier:  The EK29 provides an easy-to-use platform for evaluating the use of a power booster amplifier in tandem with a small signal, general purpose "driver" amplifier. Designers can use this kit to analyze a multitude of standard or proprietary circuit configurations.  (added 3/05)

Dual Phantom Power Pre-Amp:  (electronic circuit added 4/05)

El Cheapo a Really Simple Power Amplifier:  (circuit / schematic design added 6/06)

Enhanced Linearity in the HELA-10 Power Amplifier  AN-60-033:  Application Note MiniCircuits.com  (app note added 6/06)