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1.5 W Power Amplifier type class-C - This project will explain the basic
function of a class-C transmitter. I will explain how to dimension a transmitter
and the purpose of the different components. I will also explain how you can
build a 1.5W PA transmitter. The project will include PCB, components.
1.5kW Power Amplifier - Just the thing for those for whom no amount of power
is enough
10 Watt Power Amplifier - Simple Class A Amplifiers
100W Audio Amplifier - This is an exceptionally well designed amplifier,
with a lot of power reserve, high fidelity, low distortion, good S/N ratio, high
sensitivity, low consumption and full protection
100W Guitar Amplifier Mk II - The original of the unit above. Retained for
posterity, and has speaker box details
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..
12 Watt Valve Guitar Amp
2.8 GHz prescaler keeps cost down - EDN-Design Ideas
20 Watt Class a Power Amplifier
20 Watt GaAs-FET Power on 2.3 GHz
20 Watt Power Amplifier - The LM1875 is a monolithic power amplifier
offering very low distortion and high quality performance for consumer audio
applications..
20 Watt Power Amplifier (Randy Linscott) - This IC chip was designed
specifically for use in power boosting applications in automobiles. It is self
protecting against short circuits and thermal problems. In the bridge
configuration shown it will deliver 20 watts of power into a 2 ohm speaker
operating at 14.4 volts.
20 Watt/Channel Stereo Power Amplifier - Based on the versatile LM1875 from
National Semiconductor
2304 & 3456 MHz Power Amplifiers
27MHz toy car Transmitter
30 Watt Power Amplifier - Ultra-Low distortion30-Watt Power Amplifier
300 Watt Subwoofer Power Amplifier
4 In/1 Out Summing Power Amplifier
45W HEXFET Power Amplifier - An ideal solution to make a good, low cost
power amplifier…
4W Amplifier - I have recently included a page about AF amplifers for use
with Homebrew rigs. In this I mentioned that I may include a practical one-watt
circuit, complete with PCB foil and layout. Here it is, but I have taken the
liberty of engineering it to provide 4-watts of AF output and with a frequency
response almost suitable for Hi-Fi applications..
55 Watt Originally 75W Power Amplifier
60 Watt into 8 Ohms Power Amplifier - A simple amp to build, uses commonly
available parts and is stable and reliable
60 Watt Power Amplifier
60-100W Hi-Fi Power Amp - 100W into 4 or 8 ohms. Has excellent
performance, and is easy to build.
60W Class-A Power Amp - circuit is on last page. There is one
amplifier configuration that is universally accepted as the ideal for audio use:
Class A operation. Many early amplifiers operated in Class A
65W HEXFET Power Amplifier - A medium power amplifier that is characterized
by a lot of good sound quality, but simultaneously is very simple in the
construction. Him uses, enough time in my active loudspeakers. In his output
stage exist the very good FET transistors, technology HEXFET
A High-Efficiency 400 Watt 13.56 MHz RF Power Amplifier - Application Note
Microsemi formerly Advanced Power APT9501
A Simple Capacitance Multiplier Power Supply For Class-A Amplifiers - A
basic circuit is provided in the article, but it is assumed that the builder
knows all the pitfalls. The supplied schematic is in fact for a capacitance
multiplier filter (not a regulator), but is somewhat lacking (I feel) and can be
improved dramatically..
Ampli MOSFET - DIY high power MOSFET amplifier200 Wrms 8 ohms -350 Wrms4
ohms
AN-211: The Alexander Current-Feedback Audio Power Amplifier - AN-211 Analog
Devices Application Notes
AN-36 LX5506M High Gain, High Efficiency Power Amplifier Also see LX5506 &
LX5506B - Application Note Microsemi 1701
AN-60-009 High IP3, wide band, balanced linear power Amplifier HELA-10 -
Application Note MiniCircuits.com
AN-60-033 Enhanced Linearity in the HELA-10 Power Amplifier - Application
Note MiniCircuits.com
AN-673: 2-Way Multiplexed LCD Drive & Low Cost A/D-Converter using V/F
Techniques with COP8 MicroControllers - National Semiconductor Application
Note
AN794: Power Considerations for the TC4864 Audio Power Amplifier - Microchip
Application Note Published 18-Jul-01
AN808: Using the TC1142 for Biasing a GaAs Power Amplifier - Microchip
Application Note Published 12-Nov-02
Apex-AN19 Stability for Power Amplifiers - 11/2004, AN19UREVC : 1369 Kb
(Apex App Note added 08/08/08)
Apex-AN20 Bridge Mode Operation of Power Amplifiers - 11/2004, AN20UREVD :
288 Kb
Apex-AN21 Single Supply Operation of Power Amplifiers - 1/1998, AN21UREVB :
372 Kb
Apex-AN28 Proper Analog Wiring of Power Amplifiers - 2/1998, AN28UREVB :
126 Kb
Bridge Mode Operation of Power Amplifiers Apex-AN20 - Apex App Note
Capacitance Multiplier Power Supply for Class-A Amplifiers - Extremely low
ripple supply with less power dissipation than a regulator
Current Feedback Amp - The amplifier shown here was previously incorrectly
referred to as 'El-Cheapo'. Thanks to a reader who had a copy of the original
1964 article, it was immediately obvious that my recollection was flawed in the
extreme…
Dancing lights (Seiichi Inoue) - started this project with the idea to build
a simple single-ended tube amplifier. I didn't have any experience with the
construction of tube amps so I was looking for a beginner's project. Such a
project should be simple (for easy debugging) and it should
Dual Phantom Power Pre-Amp |
