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

High Power Amp Includes Disable:  03/03/97 EDN-Design Ideas / (added 4/02)  

Leach Amp 120 Watt Power Amplifier:  Latest update of the "Low Tim Amplifier", Claimed to be a very good sounding design (added 6/06)

LX5506M High Gain, High Efficiency Power Amplifier (Also see LX5506 and LX5506B)-(AN-36):  Application Note 36 from Microsem  (app note added 6/06)

Method to Reduce DC Power Consumption in CDMRF Power Amplifiers Through the LMV225 and an Efficient Switcher:  National Semiconductor - Application Note   (app note added 6/06)

MOSFET Power Amplifiers:  A discussion of the benefits of the lateral MOSFET output devices used in today’s High Power audio amplifiers (added 6/06)

Power Amplifier has Transient Rail-to-Rail Swing:  09/29/94 EDN-Design Ideas / (added 4/02) - Has transient rail-to-rail swing - special common-drain MOSFET-based power op amp circuit

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

Purple Cow Amplifier:  (circuit added 9/06)

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

Simple Method to Reduce DC Power Consumption in CDMRF Power Amplifiers Through the LMV225 and an Efficient Switcher:  National Semiconductor - Application Note   (app note added 6/06)

Simplest Ever Amplifier Bridging:  (Electronic circuit added 4/05)

Single Chip 50 Watt/8 Ohm Power Amplifier:  Uses LM3876 Hi-Fi amplifier IC from National Semiconductor (added 6/06)

Soft Start Circuit for Power Amps:  (Circuit / schematic design added 6/06)

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

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

The Leach Amp:  120W power amplifier, latest update of the "Low TIM Amplifier", claimed to be a very good sounding design... (circuit design added 7/06)

The Leach SuperAmp:  270 watt Double Barreled Amplifier published in Audio magazine... (circuit design added 7/06)

To 3 Case Low Power Amplifier :  (Electronic circuit added 7/03)

TPA3001d1EVM Evaluation Module:  The TPA3001D1 is a 20-W mono Class-D audio power amplifier designed for 12V to 18V applications with a 4- to 8-Ohm minimum speaker impedance. The efficient Class-D operation reduces solution size and cost by eliminating the need for heat sinks. .... (added 3/05)

TPA3007d1 Evaluation Module:  The TPA3007D1 is a 6.5-W mono Class-D audio power amplifier designed for 8V to 18V applications with an 8-W minimum speaker impedance. The efficient Class-D operation reduces solution size and cost by eliminating the need for heat sinks. .... (added 3/05)

Ultra-Low Quiescent Current AF Power Amplifier #2:  Designed by Andrew R. Morris  .  This is an audio power amplifier, similar to what is common in transistor radios and other portable audio equipment. This circuit however, has an ultra-low quiescent current of about 250uA, due to a unique bias circuit. I don’t even know of a chip that does that. .... (added 6/06)

Ultra-Low Quiescent Current AF Power Amplifier:  This circuit has a quiescent current of about 300uA through the use of a precise control circuit (Q3, Q4 and Q5).  Designed by Andrew R. Morris  (added 09/05)

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

UTC 20W:  (electronic circuit added 9/06)

UTC 25W:  (circuit added 9/06)

UTC 35W:  (project / circuit added 9/06)

UTC 50W:  (project / circuit added 9/06)