30 Watt Audio Power Amplifier
|
|
- Junior Benson
- 6 years ago
- Views:
Transcription
1 30 Watt Audio Power Amplifier Including Preamp, Tone Controls, Reg dc Power Supply, 18 Watt into 8 Ohm - 30W into 4 Ohm loads Amplifier Section Circuit diagram: Audio Power Amplifier Circuit Diagram This project was a sort of challenge: designing an audio amplifier capable of delivering a decent output power with a minimum parts count, without sacrificing quality. The Power Amplifier section employs only three transistors and a handful of resistors and capacitors in a shunt feedback configuration but can deliver more than 18W into 8 Ohm with 0.08% 1KHz at the onset of clipping 1W - 1KHz and 1W - 10KHz) and up to 30W into a 4 Ohm load. To obtain such a performance and to ensure overall stability of this very simple circuitry, a suitable regulated dc power supply is mandatory. This is not a snag because it also helps in keeping noise and hum of the preamp to very low levels and guarantees a predictable output power into different load impedance. Finally, as the amplifier requires only a single rail supply, a very good dc voltage regulator capable of supplying more than 2 40V can be implemented with a few parts also. Power Amplifier Parts: R1 = 2K2 1/4W Resistor R2 = 27K 1/4W Resistor R3 = 2K2 1/2W Trimmers Cermet R4 = 2K2 1/2W Trimmers Cermet R5 = 100R 1/4W Resistor R6 = 1K 1/4W Resistor R7 = 330R 1/4W Resistors R8 = 330R 1/4W Resistors C1 = 22µF 25V Electrolytic Capacitor C2 = 47pF 63V Polystyrene or Ceramic Capacitor C3 = 100µF 50V Electrolytic Capacitors C4 = 100µF 50V Electrolytic Capacitors C5 = 2200µF 50V Electrolytic Capacitor Q1 = BC550C 45V 100mA Low noise High gain NPN Transistor
2 Q2 = IRF V 14A N-Channel Hexfet Transistor (or MTP12N10) Q3 = IRF V 12A P-Channel Hexfet Transistor (or MTP12P10) Setting up the Power Amplifier: 1. The setup of this amplifier must be done carefully and with no haste: 2. Connect the Power Supply Unit (previously tested separately) to the Power Amplifier but not the Preamp: the input of the Power Amplifier must be left open. 3. Rotate the cursor of R4 fully towards Q1 Collector. 4. Set the cursor of R3 to about the middle of its travel. 5. Connect a suitable loudspeaker or a 8 Ohm 20W resistor to the amplifier output. 6. Connect a Multimeter, set to measure about 50V fsd, across the positive end of C5 and the negative ground. 7. Switch on the supply and rotate R3 very slowly in order to read about 23V on the Multimeter display. 8. Switch off the supply, disconnect the Multimeter and reconnect it, set to measure at least 1Amp fsd, in series to the positive supply (the possible use of a second Multimeter in this place will be very welcomed). 9. Switch on the supply and rotate R4 very slowly until a reading of about 120mA is displayed. 10. Check again the voltage at the positive end of C5 and readjust R3 if necessary. 11. If R3 was readjusted, R4 will surely require some readjustment. 12. Wait about 15 minutes, watch if the current is varying and readjust if necessary. 13. Please note that R3 and R4 are very sensitive: very small movements will cause rather high voltage or current variations, so be careful. 14. Those lucky enough to reach an oscilloscope and a 1KHz sine wave generator, can drive the amplifier to the maximum output power and adjust R3 in order to obtain a symmetrical clipping of the sine wave displayed. Pre-Amplifier Section: The Preamp sensitivity and overload margin were designed to cope with most modern music program sources like CD players, Tape recorders, ipods, Computer audio outputs, Tuners etc. The source selecting switches and input connectors are not shown and their number and arrangement are left to the constructor's choice. To obtain a very high input overload margin, the volume control was placed at the preamp input. After a unity gain, impedance converter stage (Q1) a negative-feedback Baxandall-type Bass and Treble tone control stage was added. As this stage must provide some gain (about 5.6 times) a very low noise, "bootstrapped" twotransistors circuitry with FET-input was implemented. This stage features also excellent THD figures up to 4V RMS output and a low output impedance, necessary to drive properly the Mini-MosFet Power Amplifier, but can also be used for other purposes.
3 Circuit diagram: Pre-Amplifier Circuit Diagram For Power Amplifier Preamplifier Parts: P1 = 50K - Log. Potentiometer P2 = 100K - Linear Potentiometers P3 = 100K - Linear Potentiometers (twin concentric-spindle dual gang for stereo) R1 = 220K - 1/4W Resistor R2 = 100K - 1/4W Resistor R3 = 2K7-1/4W Resistor R4 = 8K2-1/4W Resistors R5 = 8K2-1/4W Resistors R6 = 4K7-1/4W Resistor R7 = 2K2-1/4W Resistors R8 = 2K2-1/4W Resistors R9 = 2M2-1/4W Resistor R10 = 47K - 1/4W Resistor R11 = 47K - 1/4W Resistor R12 = 33K - 1/4W Resistor R13 = 2K2-1/4W Resistors R14 = 470R - 1/4W Resistor R15 = 10K - 1/4W Resistor R16 = 3K3-1/4W Resistor (See Notes) C1 = 470nF - 63V Polyester Capacitors C2 = 470nF - 63V Polyester Capacitors C3 = 47nF - 63V Polyester Capacitors C4 = 47nF - 63V Polyester Capacitors C5 = 6n8-63V Polyester Capacitors C6 = 6n8-63V Polyester Capacitors C7 = 10µF - 63V Electrolytic Capacitor C8 = 22µF - 25V Electrolytic Capacitors C9 = 470nF - 63V Polyester Capacitors C10 = 22µF - 25V Electrolytic Capacitors
4 C11 = 470µF - 25V Electrolytic Capacitor (See Notes) Q1 = BC550C - 45V 100mA Low noise High gain NPN Transistors Q2 = 2N General-purpose N-Channel FET Q3 = BC550C - 45V 100mA Low noise High gain NPN Transistors Power Supply Section: A very good and powerful Regulated Power Supply section was implemented by simply adding a PNP power transistor to the excellent LM317T adjustable regulator chip. In this way this circuit was able to deliver much more than the power required to drive two Mini-MosFet amplifiers to full output (at least 40V into 4 Ohm load) without any appreciable effort. Circuit diagram: Regulated Power Supply Circuit Diagram Power Supply Parts: R1 = 3R9-2W Resistor R2 = 22R - 1/4W Resistor R3 = 6K8-1/4W Resistor R4 = 220R - 1/4W Resistor R5 = 4K7-1/2W Resistor C1 = 4700µF - 50V Electrolytic Capacitor C2 = 100nF - 63V Polyester Capacitors C3 = 10µF - 63V Electrolytic Capacitor C4 = 220µF - 50V Electrolytic Capacitor C5 = 100nF - 63V Polyester Capacitors D1 = Diode bridge - 100V 4A D2 = 1N V 1A Diode D3 = LED - Any type and color SW2 = SPST - Mains switch IC1 = LM317T - 3-Terminal Adjustable Regulator PL1 = Male Mains plug with cord
5 Q1 = TIP42A - 60V 6A PNP Transistor T1 = 230V Primary, 35-36V (Center-tapped) Secondary, 50-75VA Mains transformer (See Notes) Notes: Q2 and Q3 in the Power Amplifier must be mounted each on a finned heatsink of at least 80x40x25mm. Q1 and IC1 in the Regulated Power Supply must be mounted on a finned heatsink of at least 45x40x17mm. A power Transformer having a secondary winding rated at 35-36V and 50VA (i.e. about 1.4Amp) is required if you intend to use Loudspeaker cabinets of 8 Ohm nominal impedance. To drive 4 Ohm loads at high power levels, a 70-75VA Transformer (2Amp at least) will be a better choice. These transformers are usually center tapped: the central lead will be obviously left open. For the stereo version of this project, R16 and C11 in the Preamp will be in common to both channels: therefore, only one item each is necessary. In this case, R16 must be a 1K5 1/2W resistor. The value of C11 will remain unchanged. Technical data: Output power: 18 Watt RMS into 8 Ohm (1KHz sine wave) - 30 Watt RMS into 4 Ohm Input sensitivity of the complete Amplifier: 160mV RMS for full output Power Amplifier Input sensitivity: 900mV RMS for full output Power Amplifier Frequency 1W RMS: flat from 40Hz to 20KHz, 30Hz, 20Hz Power Amplifier Total harmonic 1KHz: 100mW 0.04% 1W 0.04% 10W 0.06% 18W 0.08% Power Amplifier Total harmonic 100mW 0.02% 1W 0.02% 10W 0.05% 18W 0.12% Unconditionally stable on capacitive loads Preamp Maximum output voltage: 4V RMS Preamp Frequency response: flat from 20Hz to 20KHz Preamp Total harmonic 1KHz:
6 1V RMS 0.007% 3V RMS 0.035% Preamp Total harmonic 1V RMS 0.007% 3V RMS 0.02% Bass control frequency range referred to 1KHz: 40Hz Treble control frequency range referred to 1KHz: 20KHz
Minimalist Discrete Hi-Fi Preamp
Minimalist Discrete Hi-Fi Preamp Rod Elliott (ESP) Introduction A preamp designed for the minimalist, and having no frills at all is the design goal for this project. It is designed as a preamp for the
More informationVOLUME AND TONE CONTROL - PREAMPLIFIER K8084
VOLUME AND TONE CONTROL - PREAMPLIFIER K8084 When using one of our amplifiers (big or small), you always need a volume control and preferably also a tone control H8084IP-1 Features & specifications When
More informationDIY Function Generator XR2206
DIY Function Generator XR2206 20Hz 100KHz http://radiohobbystore.com Components List: Resistors: R1, R2 1% Metal Film 5K1 R4 1% Metal Film 10K R5 1% Metal Film 3K R10 5% Carbon Film 10R R3, R9 Potentiometer
More informationEE43 43/100 Fall Final Project: 1: Audio Amplifier, Part Part II II. Part 2: Audio Amplifier. Lab Guide
EE 3/00 EE FINAL PROJECT PROJECT:AN : AUDIO AUDIO AMPLIFIER AMPLIFIER Part : Audio Amplifier Lab Guide In this lab we re going to extend what you did last time. We re going to use your AC to DC converter
More informationConstruction notes for the symmetrical 400 watt amplifier
Construction notes for the symmetrical 400 watt amplifier Introduction The symmetrical amplifier is an update of one of my designs, which appeared in the Australian electronics magazine Silicon Chip in
More informationMA 5100 SERVICE INFORMATION PREAMP - AMPLIFIER. MclNTOSH LABORATORY INC. 2 CHAMBERS STREET BINGHAMTON, NEW YORK STARTING WITH SERIAL NO.
PREAMP - AMPLIFIER SERVICE INFORMATION STARTING WITH SERIAL NO. 21HOO MclNTOSH LABORATORY INC. 2 CHAMBERS STREET BINGHAMTON, NEW YORK ELECTRICAL SPECIFICATIONS Power Output: 90 watts RMS continuous, 45
More informationaudionet AMP 1 V2 User s Manual Stereo - Amplifier
audionet AMP 1 V2 Stereo - Amplifier User s Manual 1 2 Contents 1 Preface... 4 1.1 Included... 5 1.2 Transport... 5 2 Overview control elements... 6 2.1 Front panel... 6 3 Overview connections... 7 3.1
More informationaudionet 4 Channel Amplifier Owner's Manual
audionet amp Iv 4 Channel Amplifier Owner's Manual Congratulations! For those in need of even more amplification we have engineered the AMP IV. The AMP IV is our power amplifier for multichannel applications
More information60-100W Hi-Fi Power Amplifier. Rod Elliott (ESP) PCBs are available for this project. Click the image for details.
Page 1 of 6 Elliott Sound Products Project 3A Introduction 60-100W Hi-Fi Power Amplifier Rod Elliott (ESP) PCBs are available for this project. Click the image for details. Update - 24 Jul 2003. OnSemi
More informationRegistration 3. Owners Record Setup 4. Unit Connections 6. Front Panel Controls 8. Remote Control 9. Unit Care Technology 10. Designer s Note 12.
Registration 3. Owners Record Setup 4. Unit Connections 6. Front Panel Controls 8. Remote Control 9. Unit Care Technology 10. Designer s Note 12. Specifications 2 The model and serial numbers are located
More informationUniversity of North Carolina, Charlotte Department of Electrical and Computer Engineering ECGR 3157 EE Design II Fall 2009
University of North Carolina, Charlotte Department of Electrical and Computer Engineering ECGR 3157 EE Design II Fall 2009 Lab 1 Power Amplifier Circuits Issued August 25, 2009 Due: September 11, 2009
More informationLM4610 Dual DC Operated Tone/Volume/Balance Circuit with National 3-D Sound
LM4610 Dual DC Operated Tone/Volume/Balance Circuit with National 3-D Sound General Description The LM4610 is a DC controlled tone (bass/treble), volume and balance circuit for stereo applications in car
More informationMC2301. Features and Benefits. Promotional Highlights TUBE POWER AMPLIFIER MCINTOSH LABORATORY INC., 2 CHAMBERS STREET, BINGHAMTON, NEW YORK 13903
MC2301 Product Preview Page 1 McIntosh Laboratory, Inc., Binghamton, NY 13903 Design Engineering Department PRODUCT PREVIEW MC2301 TUBE POWER AMPLIFIER Project 1336 Promotional Highlights 300 Watts Mono
More informationDIY: from vinyl to compact disk
AUDIO & HI-FI DIY: from vinyl to compact disk with a PC and sound card Nowadays, with the availability of personal computers and compact-disk (CD) writers, there is nothing in the way of transferring one
More informationIbanez Tube Screamer 808
History Ibanez Tube Screamer 808 The Ibanez Tube Screamer is an overdrive pedal. The most popular use of a tube screamer is to push a tube amp to make it overdrive more. The pedal has a characteristic
More informationMaterials. Eight pin DIP socket 0.1 µf capacitor
JOE GROELE Project Outline The goal of this project was to build a plasma speaker that will amplify an electric guitar sound. Build an audio oscillator circuit using an ordinary speaker Test speaker performance
More informationDEPARTMENT OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE MASSACHUSETTS INSTITUTE OF TECHNOLOGY CAMBRIDGE, MASSACHUSETTS 02139
DEPARTMENT OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE MASSACHUSETTS INSTITUTE OF TECHNOLOGY CAMBRIDGE, MASSACHUSETTS 02139 Spring Term 2007 6.101 Introductory Analog Electronics Laboratory Laboratory
More information19'' Rack Mount 300 Watt Power Amplifier/ Mixer w/70v Output & Mic Talkover USER MANUAL
19'' Rack Mount 300 Watt Power Amplifier/ Mixer w/70v Output & Mic Talkover USER MANUAL Your new PYRAMID PA305 300 Watt P.A. Amplifier gives you the power and versatility you need in a professional sound
More informationOBSOLETE. Microphone Preamplifier with Variable Compression and Noise Gating SSM2165
a FEATURES Complete Microphone Conditioner in an 8-Lead Package Single +5 V Operation Preset Noise Gate Threshold Compression Ratio Set by External Resistor Automatic Limiting Feature Prevents ADC Overload
More informationOpamp Based Power Amplifier
Introduction Opamp Based Power Amplifier Rohit Balkishan This is a contributed project from Rohit Balkishan, who has built it, and thought that it would make a nice simple project for others. This is a
More information11. Audio Amp. LM386 Low Power Amplifier:
EECE208 INTRO TO EE LAB Dr. Charles Kim 11. Audio Amp Objectives: The main purpose of this laboratory exercise is to design an audio amplifier based on the LM386 Low Voltage Audio Power Amplifier chip
More informationOp Amp Booster Designs
Op Amp Booster Designs Although modern integrated circuit operational amplifiers ease linear circuit design, IC processing limits amplifier output power. Many applications, however, require substantially
More information7 Watt Audio Amplifier with TDA2003
7 Watt Audio Amplifier with TDA2003 Schematic diagram of a simple 7 watt audio amplifier using TDA2003 Amplifier IC. This is a good IC with many built in features like low harmonic distortion, short circuit
More informationThe ROSE 80 CW Transceiver (Part 1 of 3)
Build a 5 watt, 80 meter QRP CW Transceiver!!! Page 1 of 10 The ROSE 80 CW Transceiver (Part 1 of 3) Build a 5 watt, 80 meter QRP CW Transceiver!!! (Designed by N1HFX) A great deal of interest has been
More informationPB 700 PB 1000 PB 1100 PB 1500 PB 2600 PB 1200 PB 1700 PB 2200 PB 2700 USER'S MANUAL.
PB 700 PB 1000 PB 1100 PB 1500 PB 2600 PB 1200 PB 1700 PB 2200 PB 2700 USER'S MANUAL www.pyramidcaraudio.com congratulations... on your purchase of a Pyramid America Series amplifier. This amplifier extends
More informationAnalyzing the Dynaco Stereo 120 Power Amplifier
Analyzing the Dynaco Stereo 120 Power Amplifier The Stereo 120 Power Amplifier came out around 1966. It was the first powerful (60 watts per channel) solid state amplifier in wide production. Each channel
More informationUMA 4300 Professional Series Installation Power Amplifer Owner s Manual
1 UMA 4300 Professional Series Installation Power Amplifer Owner s Manual UMA 4300 Professional Installation Power Amplifier ENGLISH The UMA 4300 is a high quality, commercial grade analog audio mixer/amplifier.
More informationExperiment 6: Biasing Circuitry
1 Objective UNIVERSITY OF CALIFORNIA AT BERKELEY College of Engineering Department of Electrical Engineering and Computer Sciences EE105 Lab Experiments Experiment 6: Biasing Circuitry Setting up a biasing
More informationMarchand Electronics Inc.
Marchand Electronics Inc. Rochester, NY. TEL:(585) 423 0462 www.marchandelec.com Electronic Crossover XM1 XM1 ELECTRONIC CROSSOVER NETWORK In many high performance loudspeaker systems the individual loudspeaker
More informationThe Aleph 5 is a stereo 60 watt audio power amplifier which operates in single-ended class A mode.
Pass Laboratories Aleph 5 Service Manual Rev 0 9/20/96 Aleph 5 Service Manual. The Aleph 5 is a stereo 60 watt audio power amplifier which operates in single-ended class A mode. The Aleph 5 has only two
More informationMODEL 3 MONO AMPLIFIER OWNER S MANUAL
MODEL 3 MONO AMPLIFIER OWNER S MANUAL TABLE OF CONTENTS Introduction Features Unpacking Instructions Installation * Space requirements * A.C. connections Input Impedance Selection Adjustable Gain Signal
More informationEUA6210 Output Capacitor-less 67mW Stereo Headphone Amplifier
Output Capacitor-less 67mW Stereo Headphone Amplifier DESCRIPTION The is an audio power amplifier primarily designed for headphone applications in portable device applications. It is capable of delivering
More informationVERSATILE AUDIO AGC CIRCUIT Dave Kenward G8AJN
VERSATILE AUDIO AGC CIRCUIT Dave Kenward G8AJN Whilst we spend many happy hours perfecting our video signals, the audio often tends to be an afterthought. For our local repeater a finely adjustable compressor/limiter
More informationWESTREX RA-1712 PHOTOGRAPHIC SOUND RECORD ELECTRONICS
INTRODUCTION The RA-1712 solid state Record Electronics is an integrated system for recording photographic sound tracks on a Westrex photographic sound recorder. It accepts a 600Ω input signal level from
More informationLM391 Audio Power Driver
LM391 Audio Power Driver General Description The LM391 audio power driver is designed to drive external power transistors in 10 to 100 watt power amplifier designs High power supply voltage operation and
More informationOperational Amplifiers
Operational Amplifiers Reading Horowitz & Hill handout Notes, Chapter 9 Introduction and Objective In this lab we will examine op-amps. We will look at a few of their vast number of uses and also investigate
More informationA hi-fi system begins with the source and ends with the loudspeakers.
A hi-fi system begins with the source and ends with the loudspeakers. >> Any information lost at the source can never be recovered by a subsequent component in the system. >> No matter how good the amplification,
More informationLow Cost, General Purpose High Speed JFET Amplifier AD825
a FEATURES High Speed 41 MHz, 3 db Bandwidth 125 V/ s Slew Rate 8 ns Settling Time Input Bias Current of 2 pa and Noise Current of 1 fa/ Hz Input Voltage Noise of 12 nv/ Hz Fully Specified Power Supplies:
More informationBurning Amp 2. by Nelson Pass. Introduction. Concept
Burning Amp 2 by Nelson Pass Introduction In Burning Amp 1 we examined an amplifier circuit designed to complement the hardware we gave away to some attendees at last October's Burning Amp Festival in
More informationCalibration Techniques for the Home Lab
Calibration Techniques for the Home Lab Jacques Audet VE2AZX jacaudet@videotron.ca Web: ve2azx.net September 2018 ve2azx.net 1 Summary - Using a reference multimeter as a calibrator for less accurate instruments.
More informationUSO RESTRITO. Introduction to the Six Basic Audio Measurements. About this Technote. 1: Device Under Test and Signal Path. DUTs
USO RESTRITO A p p l i c a t i o n a n d T e c h n i c a l S u p p o r t f o r A u d i o P r e c i s i o n U s e r s T E C H N O T E TN104 2700 Series ATS-2 APx500 Series Introduction to the Six Basic
More information[Q] DEFINE AUDIO AMPLIFIER. STATE ITS TYPE. DRAW ITS FREQUENCY RESPONSE CURVE.
TOPIC : HI FI AUDIO AMPLIFIER/ AUDIO SYSTEMS INTRODUCTION TO AMPLIFIERS: MONO, STEREO DIFFERENCE BETWEEN STEREO AMPLIFIER AND MONO AMPLIFIER. [Q] DEFINE AUDIO AMPLIFIER. STATE ITS TYPE. DRAW ITS FREQUENCY
More informationPartIIILectures. Multistage Amplifiers
University of missan Electronic II, Second year 2015-2016 PartIIILectures Assistant Lecture: 1 Multistage and Compound Amplifiers Basic Definitions: 1- Gain of Multistage Amplifier: Fig.(1-1) A general
More informationG6ALU 20W FET PA Construction Information
G6ALU 20W FET PA Construction Information The requirement This amplifier was designed specifically to complement the Pic-A-Star transceiver developed by Peter Rhodes G3XJP. From the band pass filter an
More informationFinal Project Stereo Audio Amplifier Final Report
The George Washington University School of Engineering and Applied Science Department of Electrical and Computer Engineering Final Project Stereo Audio Amplifier Final Report Daniel S. Boucher ECE 20-32,
More informationMAINTENANCE MANUAL AUDIO AMPLIFIER BOARD 19D904025G1 (MDR) AUDIO AMPLIFIER BOARD 19D904025G2 (MDX)
A MAINTENANCE MANUAL AUDIO AMPLIFIER BOARD 19D904025G1 (MDR) AUDIO AMPLIFIER BOARD 19D904025G2 (MDX) TABLE OF CONTENTS DESCRIPTION............................................... Page Front Cover CIRCUIT
More informationSPECIFICATIONS: Subcarrier Frequency 5.5MHz adjustable, FM Modulated +/- 50KHz. 2nd 11MHz >40dB down from 5.5MHz
Mini-kits AUDIO / SUBCARRIER KIT EME75 Version4 SPECIFICATIONS: Subcarrier Frequency 5.5MHz adjustable, FM Modulated +/- 50KHz Subcarrier Output 1.5v p-p Output @ 5.5MHz DESCRIPTION & FEATURES: The Notes
More informationAN W 2 (18 V, 8 Ω) Power Amplifier with Variable Audio Output and Volume Control. ICs for Audio Common Use. Overview. Features.
ICs for Audio Common Use. W 2 (8 V, 8 Ω) Power Amplifier with Variable Audio Output and Volume Control Overview The is a monolithic integrated circuit designed for. W (8 V, 8 Ω) output audio power amplifier.
More informationExperiment 6: Biasing Circuitry
1 Objective UNIVERSITY OF CALIFORNIA AT BERKELEY College of Engineering Department of Electrical Engineering and Computer Sciences EE105 Lab Experiments Experiment 6: Biasing Circuitry Setting up a biasing
More informationEl-Cheapo - A Really Simple Power Amplifier
El-Cheapo - A Really Simple Power Amplifier Rod Elliott - ESP (Semi-Original Design) "Semi-Original Design" - What is that supposed to mean? Well, many years ago, there was an amplifier circuit in a magazine
More informationA 3-STAGE 5W AUDIO AMPLIFIER
ECE 2201 PRELAB 7x BJT APPLICATIONS A 3-STAGE 5W AUDIO AMPLIFIER UTILIZING NEGATIVE FEEDBACK INTRODUCTION Figure P7-1 shows a simplified schematic of a 3-stage audio amplifier utilizing three BJT amplifier
More informationMixing Amplifier MA 247MR
MA 247MR Mixing Amplifier Less is more. As the CD is losing more and more ground, there is no more CD-player in the MA247MR. No moving parts, higher reliability. Something of a legend already, this 240
More informationHAMTRONICS TB901 FM EXCITER INSTALLATION, OPERATION, & MAINTENANCE
HAMTRONICS TB901 FM EXCITER INSTALLATION, OPERATION, & MAINTENANCE GENERAL INFORMATION. The TB901 is a single-channel low power fm transmitter (exciter) designed to provide 300-600 milliwatts continuous
More informationFigure 2 shows the actual schematic for the power supply and one channel.
Pass Laboratories Aleph 3 Service Manual rev 0 2/1/96 Aleph 3 Service Manual. The Aleph 3 is a stereo 30 watt per channel audio power amplifier which operates in single-ended class A mode. The Aleph 3
More informationA 120 watt Solid State Amp
A 120 watt Solid State Amp Introduction Again an amplifier at a time when nice class-d amps (Hypex) are available? After the absolute success of the SSA35 (it measures and sounds so good) I present its
More information3 Circuit Theory. 3.2 Balanced Gain Stage (BGS) Input to the amplifier is balanced. The shield is isolated
Rev. D CE Series Power Amplifier Service Manual 3 Circuit Theory 3.0 Overview This section of the manual explains the general operation of the CE power amplifier. Topics covered include Front End Operation,
More informationAN W 2 (18 V, 8 Ω) Power Amplifier with Mute Function and Volume Control. ICs for Audio Common Use. Overview. Features.
. W 2 (8 V, 8 Ω) Power Amplifier with Mute Function and Volume Control Overview The is a monolithic integrated circuit designed for. W (8 V, 8 Ω) output audio power amplifier. It is a dual channel SEPP
More informationK8066 3W MONO AMPLIFIER. Specifications
Total solder points: 34 Difficulty level: beginner 1 2 3 4 5 advanced 3W MONO AMPLIFIER K8066 Small but powerful amplifier suits a wide range of applications. Specifications Output power : 3Wrms (4-8 ohm,
More informationGOLDMUND MIMESIS SRM2.3 MONO AMPLIFIER
GOLDMUND MIMESIS SRM2.3 MONO AMPLIFIER 1 GOLDMUND MIMESIS SRM2.3 MONO AMPLIFIER USER MANUAL ATTENTION : No connection or manipulation must be done before reading those instructions. Damage to the amplifier
More information10-channel Power Amplifier Construction. The 10-channel amplifier contains the following amplification modules: 7 x 50Watt/8ohm + 3 x 100Watt/4ohm.
10-channel Power Amplifier Construction The 10-channel amplifier contains the following amplification modules: 7 x 50Watt/8ohm + 3 x 100Watt/4ohm. The easiest to assemble were the 50Watt/8ohm modules,
More informationUNISONIC TECHNOLOGIES CO.,LTD.
UNISONIC TECHNOLOGIES CO.,LTD. STEREO AUDIO AMPLIFIER DESCRIPTION The UTC is a monolithic integrated audio amplifier in a 6-pin plastic dual in line package. It is designed for portable cassette players
More informationtransformer rectifiers
Power supply mini-project This week, we finish up 201 lab with a short mini-project. We will build a bipolar power supply and use it to power a simple amplifier circuit. 1. power supply block diagram Figure
More informationMAX Series Bass Amplifiers
MAX Series Bass Amplifiers Operating Manual www.peavey.com FCC Compliancy Statement This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device
More informationINTEGRATED CIRCUITS DATA SHEET. TDA1074A Dual tandem electronic potentiometer circuit. Product specification File under Integrated Circuits, IC01
INTEGRATED CIRCUITS DATA SHEET File under Integrated Circuits, IC01 December 1982 GENERAL DESCRIPTION The is a monolithic integrated circuit designed for use as volume and tone control circuit in stereo
More informationTrace Elliot Elf Bass Instrument Amplifier
Trace Elliot Elf Bass Instrument Amplifier Owner s Manual FCC Compliancy Statement This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device
More informationThe Aleph 2 is a monoblock 100 watt audio power amplifier which operates in single-ended class A mode.
Pass Laboratories Aleph 2 Service Manual Rev 0 2/1/96 Aleph 2 Service Manual. The Aleph 2 is a monoblock 100 watt audio power amplifier which operates in single-ended class A mode. The Aleph 2 has only
More informationTOA 900 SERIES POWER AMPLIFIER P-924A
Operation Instruction Manual TOA 900 SERIES POWER AMPLIFIER P-924A Features General Descriptions 1 Wide frequency response; 20 20,000 Hz, ±1dB 2 Low distortion and noise level 3 Excellent output regulation
More informationTOA NEW 900 SERIES MIXER POWER AMPLIFIER A-901A. General Description. TOA Corporation. Operation Instruction Manual
Operation Instruction Manual TOA NEW 900 SERIES MIXER POWER AMPLIFIER A-901A Features 1 3-channel mixer power amplifier 2 Wide frequency response; 20 20,000 Hz, ±1dB 3 Low distortion and noise level 4
More informationAudio Test Oscillator
Audio Test Oscillator Design By Rod Elliott - ESP Introduction As a piece of test equipment, an audio oscillator has to be considered essential for anyone working in with hi-fi gear. Together with an audio
More informationStereo Tone Controller
Stereo Tone Controller 1. Objective In this project, you get to design a stereo tone-controller. In other words, the circuit will amplify the base and/or treble for a two-channel stereo system. 2. Prelab
More informationMAINTENANCE MANUAL AUDIO MATRIX BOARD P29/
MAINTENANCE MANUAL AUDIO MATRIX BOARD P29/5000056000 TABLE OF CONTENTS Page DESCRIPTION................................................ Front Cover CIRCUIT ANALYSIS.............................................
More informationElectronics I. laboratory measurement guide
Electronics I. laboratory measurement guide Andras Meszaros, Mark Horvath 2017.02.27. 4. Measurement: Bipolar transistor current generator and amplifiers These measurements will use a single (asymmetric)
More informationSERVICE MANUAL. Subwoofer Amplifier Model: SW12-I SW15-I KLIPSCH, INC.
SERVICE MANUAL Subwoofer Amplifier Model: SW12-I SW15-I KLIPSCH, INC. TABLE OF CONTENTS SPECIFICATIONS...2 Model: SW12-I...2 Model: SW15-I...2 THEORY OF OPERATION... 3 INPUTS... 3 SIGNAL CONDITIONING...
More informationFMR611S SUBCARRIER DEMODULATOR
ALL ENGINEERING DESIGNS, DRAWINGS AND DATA CONTAINED HEREIN ARE PROPRIETARY AND MAY NOT BE REPRODUCED, COPIED OR OTHERWISE USED WITHOUT WRITTEN AUTHORIZATION FMR611S SUBCARRIER DEMODULATOR INSTRUCTION
More informationAN W 2 (18 V, 8 Ω) Power Amplifier with Mute Function and Volume Control. ICs for Audio Common Use. Overview. Features.
4.0 W 2 (8 V, 8 Ω) Power Amplifier with Mute Function and Volume Control Overview The is a monolithic integrated circuit designed for 4.0 W (8 V, 8 Ω) output audio power amplifier. It is a dual channel
More informationLM150/LM350A/LM350 3-Amp Adjustable Regulators
LM150/LM350A/LM350 3-Amp Adjustable Regulators General Description The LM150 series of adjustable 3-terminal positive voltage regulators is capable of supplying in excess of 3A over a 1.2V to 33V output
More informationUltra 4B SE Special Edition. Stereo Phono/Line Preamplifier
Modular Series Ultra B SE Special Edition Stereo Phono/Line Preamplifier User s Manual Phono Line Line Balance Volume Mapletree Audio Design Ultra B SE Stereo Preamplifier Rev. Feb. / Mapletree Audio Design
More informationDVM98. True RMS Digital Multimeter. 1 Safety information. 1.1 Preliminary. 1.2 During use
True RMS Digital Multimeter DVM98 1 Safety information This multimeter has been designed according to IEC - 1010 concerning electronic measuring instruments with an overvoltage category (CAT II) and pollution
More informationUNISONIC TECHNOLOGIES CO.,LTD. TEA2025
UNISONIC TECHNOLOGIES CO.,LTD. TEA05 STEREO AUDIO AMPLIFIER DESCRIPTION The UTC TEA05 is a monolithic integrated audio amplifier in a 16-pin plastic dual in line package. It is designed for portable cassette
More informationDistributed by: www.jameco.com 1-800-831-4242 The content and copyrights of the attached material are the property of its owner. LM138/LM338 5-Amp Adjustable Regulators General Description The LM138 series
More informationOperating Instruction Manual ELECTRONIC MUSIC AMPLIFICATION SYSTEM. Model KD-1. Toa Electric Co., Ltd. KOBE, JAPAN
Operating Instruction Manual ELECTRONIC MUSIC AMPLIFICATION SYSTEM Model KD-1 Toa Electric Co., Ltd. KOBE, JAPAN Contents Precautions... 1 General Description... 2 Features... 2 Front Panel: Names of components
More informationaudionet amp II G2 Owner's Manual Mono - Amplifier
audionet amp II G2 Mono - Amplifier Owner's Manual Owner's manual The Audionet-Team would like to congratulate you to purchasing the Audionet AMP II G2! Your Audionet AMP II G2 is designed for absolutely
More informationFull FET Class AB Amplifier
Full FET Class AB Amplifier INTRODUCTION & FEATURES... 2 FEATURES & CONTROLS... 3-4 specification... 5 installation & precautions... 5 SYSTEM WIRING...6-13 2channel SYSTEM WIRING...6-8 4channel SYSTEM
More informationHOM rev. new Heathkit of the Month #74: by Bob Eckweiler, AF6C STEREO HI-FI EQUIPMENT. Heath of the Month #74 - Model Description
Heathkit of the Month #74: by Bob Eckweiler, AF6C STEREO HI-FI EQUIPMENT Heathkit AA-14 Solid-State Stereo Amplifier Introduction: Heathkit of the Month #63 covered the AJ-14 Stereo FM Tuner. For many
More informationECE 310L : LAB 9. Fall 2012 (Hay)
ECE 310L : LAB 9 PRELAB ASSIGNMENT: Read the lab assignment in its entirety. 1. For the circuit shown in Figure 3, compute a value for R1 that will result in a 1N5230B zener diode current of approximately
More informationTHE HONG KONG POLYTECHNIC UNIVERSITY EN107/1 Department of Electronic and Information Engineering. EN107: OCL Class AB Power Amplifier Objective
THE HONG KONG POLYTECHNIC UNIVERSITY EN107/1 EN107: OCL Class AB Power Amplifier Objective 1. To study the circuit performance of an OCL amplifier. 2. To study the effects of biasing on cross-over distortion
More informationLearning Objectives:
Learning Objectives: At the end of this topic you will be able to; recall the conditions for maximum voltage transfer between sub-systems; analyse a unity gain op-amp voltage follower, used in impedance
More informationEar+ Purist HD. Ear+ HD High Definition Stereo Headphone Amplifier
Ear Purist HD Ear HD High Definition Stereo Headphone Amplifier 2AX7 Users' Manual ev Oct. 7/3 Mapletree Audio Design loyd Peppard.., Seeley's Bay, Ontario, Canada, K0H 2N0 (63) 387-3830 www.mapletreeaudio.com
More informationLA W 2-Channel AF Power Amplifier
Ordering number:enn1164c Monolithic Linear IC LA4500 5.3W 2-Channel AF Power Amplifier Features Low idling current (20mA/2 channels) enabling prolonged battery life. Less dependence of idling current on
More informationAn Electronic Variable Load by Dave Chute, KG4BZW
EDITOR: GEOFF HAINES, N1GY Published Quarterly N1GY@ARRL.NET Summer Edition FROM THE EDITOR: Once again I am happy to report that we have several great articles in the Summer Edition of The WCF Experimenter.
More informationHomework Assignment 13
Question 1 Short Takes 2 points each. Homework Assignment 13 1. Classify the type of feedback uses in the circuit below (i.e., shunt-shunt, series-shunt, ) 2. True or false: an engineer uses series-shunt
More informationPhono3. Two Channel Analog RIAA MM/MC Pre-Amplifier
User's Guide Phono3 e.one Series Two Channel Analog RIAA MM/MC Pre-Amplifier Bel Canto Design, LTD. 221 North First Street Minneapolis, MN 55401 Phone: (612) 317.4550 Fax: (612) 359.9358 www.belcantodesign.com
More informationH BRIDGE INVERTER. Vdc. Corresponding values of Va and Vb A+ closed, Va = Vdc A closed, Va = 0 B+ closed, Vb = Vdc B closed, Vb = 0 A+ B+ A B
1. Introduction How do we make AC from DC? Answer the H-Bridge Inverter. H BRIDGE INVERTER Vdc A+ B+ Switching rules Either A+ or A is always closed, but never at the same time * Either B+ or B is always
More informationCongratulations on your purchase of a Lanzar EVOLUTION amplifier. You have purchased a quality product designed
Congratulations on your purchase of a Lanzar EVOLUTION amplifier. You have purchased a quality product designed and engineered to give you many years of uncompromised musical service. EVOLUTION amplifiers
More informationModel SR554 Transformer Preamplifier
Model SR554 Transformer Preamplifier Model SR554 Transformer Preamplifier 1290-D Reamwood Avenue Sunnyvale, California 94089 Phone: (408) 744-9040 Fax: (408) 744-9049 email: info@thinksrs.com www.thinksrs.com
More informationAN174 Applications for compandors SA570/571 SA571
RF COMMUNICATIONS PRODUCTS Applications for compandors SA570/571 SA571 1997 Aug 20 Philips Semiconductors APPLICATIONS The following circuits will illustrate some of the wide variety of applications for
More informationExperiment No. 6. Audio Tone Control Amplifier
Experiment No. 6. Audio Tone Control Amplifier By: Prof. Gabriel M. Rebeiz The University of Michigan EECS Dept. Ann Arbor, Michigan Goal: The goal of Experiment #6 is to build and test a tone control
More informationLM W Audio Power Amplifier
LM388 1 5W Audio Power Amplifier General Description The LM388 is an audio amplifier designed for use in medium power consumer applications The gain is internally set to 20 to keep external part count
More informationLM831 Low Voltage Audio Power Amplifier
LM831 Low Voltage Audio Power Amplifier General Description The LM831 is a dual audio power amplifier optimized for very low voltage operation The LM831 has two independent amplifiers giving stereo or
More informationSampling and Reconstruction
Experiment 10 Sampling and Reconstruction In this experiment we shall learn how an analog signal can be sampled in the time domain and then how the same samples can be used to reconstruct the original
More information