Free Essay

[Building a Battery Powered Guitar Amplifier]

In:

Submitted By DIZZLE23
Words 2291
Pages 10
[BUILDING A BATTERY POWERED GUITAR AMPLIFIER]
[Gray GS 1140]
Darin Frank

Darin Frank
Gray GS1140

Building A Battery Powered Guitar Amp

Intro:
Since the invention of the guitar amplifier, it has operated on AC power. Since its creation in the early 1900’s, amplifiers have come a long way. We now have multiple name brand amplifiers, as well as boutique amplifier building companies. These all use power cords that allow them to function, and produce sound. So what if I told you the way you think of guitar amplifiers might be about to change? What would you say?
Background:
Over the past century guitar amplifiers have gone through multiple changes. First there were vacuum tube amplifiers dating back to the early 1900’s made by Gibson and Redenbacher, to the transistor/ Solid State amplifier created in the 1960’s. Then the world renowned Jim Marshall combined the two amplifier types in 1991, and the era of the Valve State amplifier was born. These have evolved into some of the best products imaginable, and have become one of the most controversial debates among musicians since the creation of the guitar amplifier. On January 14th, 2010 a brand new era of professional guitar amplifiers were introduced into the world of music.

The first lithium battery powered 60watt Grid C-1 professional vacuum tube amplifier was viewed by the general population at Namm 2010. This amplifier is equipped with many great features such as:

Tubes: | 2 Nos U.S.-made 1u4 mini 7 pin preamp tubes | Controls: | (Clean Channel) Gain, bass, mid, treble, reverb, volume. (Lead channel) Bass, mid, treble, Gain, bright switch, channel select switch. | Channels: | 2 | Power: | 60watts | Extras: | Effects loop, footswitch, automatic switching between battery and AC power. | Weight: | 40LBS | Kudos: | Good range of clean and distortion tone, loud and punchy, battery power allows use about everywhere. | Concerns: | Tubes are hard to access, no extension speaker jack | Pricing: | $1,799 direct |

(A. Thomas, Guitar Player Mag. august, 2010) DEFINING THE PROBLEM To better define the problem at hand some information will need to be collected. We need to answer the questions below to help get us started in the building process. 1. What kind of battery will be used? 2. Will it have the capabilities to recharge? 3. How will we construct the cabinet that will house everything? 4. Will it fit into our budget? Talk with people first hand who are familiar with the problem: Line 6 is one of the leading amp building companies in the industry and they have created their own version of a battery powered guitar amplifier. The micro spider is an amp you are able to use on vacation, in the recording studio and in your car if you wish. This amp is portable and gives you all the functionality as well as all the effects processing you could ever need to get out of a mobile guitar amplifier. Viewing the problem first hand: After speaking with a technician of guitar center his insights where to build a solid-state amplifier. He specified what kind of battery would work the best for the project and have the ability to be recharged many times. Also while discussing building the battery powered amplifier he shared wood types that would work best, and what it might cost to build. Problem definition techniques: Answering these questions will help us generate a well thought out solution for the problem, as we proceed. In the charts below we are going use a dunker diagram and a statement/restatement to lay the thought process out on paper. Present state Building a battery powered guitar amplifier | Desired state Don’t have to rely on a power cord | Present state Building a battery powered guitar amplifier | Desired state Can play anytime anywhere | Present state Building a battery powered guitar amplifier | Desired state Free up load in small music venues, and don’t have to fear power outages | By using the problem solving charts it will help lead us into the path of least resistance. Problem statement: The problem is defined as “building a gig worthy battery powered guitar amplifier, and building it cheap”. Generating a solution To generate a solution for this problem we must answer the questions introduced earlier. So a lot of research and focus will have to go into brainstorming this process if we are to achieve the main goal of building a gig worthy battery powered guitar amplifier. A couple different ways to build the amplifier were disguised in the brainstorming and research process. Ideas of the materials needed to construct the battery powered guitar amplifier were determined as well. You can use free association to help factor the solutions and brainstorming that should be decided upon. * Brainstorming

* Radial Cycle Parts layout

Deciding a course of action Now that we have generated a solution we need to distinguish between which problems need to be solved first, and which can be saved for later. Some problems in this project have higher priorities than others. Deciding the type of battery powered guitar amplifier to build and the design are our greatest priority. Using a K.T. situation appraisal chart will help set the priorities of the building process.

PROJECT | TIMING | TREND | IMPACT | Decide on type of battery powered amplifier | H | H | H | Design a specific schematic/parts list | H | H | H | Build amp cabinet | H | H | M | Purchase cables | L | M | H | SITUATION APPRAISAL Because of time and money being a factor in the recession we are facing today cheap is the biggest priority, followed closely by performance. There are two choices suitable and that will meet our needs. One is building the amp out of cheaper random car audio gear that is already set to run off of DC power easily put together and offers a great sound. The second is buying a solid-state amp building kit, bi-passing the transformer, and in its place putting a battery pack. This will take a little more work and money to finish but will offer great sound quality. Using the K.T. decision analysis chart below will help us decide which is the best to go with.

DECISION ANALYSIS

Alternative Solution | ABuilding amp out of cheaper audio gear. | BBuy amp-building kit and modify. | Must | 1. Amp must be affordable to build. | GO | No GO | | 2. Amp must use rechargeable batteries. | GO | GO | | 3. Amp must be able to make quick and easy repairs. | GO | No GO | | | WEIGHT | RATING | SCORE | RATING | SCORE | Wants | 1. Should be cheap to maintain. | 5 | 4 | 20 | | | | 2. Should be able to use anywhere | 6 | 3 | 18 | | | | 3. Should be easy to build. | 8 | 5 | 45 | | | | TOTAL: 83 | TOTAL: | The solid-state amplifier building kit was eliminated because it wasn’t as cheap or as quick to put together as building it out of car audio equipment. The solid-state amplifier building kit would only function on a 9v, AA, AAA, battery pack because of its enclosed cabinet design. Any other battery pack that could be recharged becomes potentially hazardous for explosion because of the heat generated by the internals of the amplifier. The disadvantages of this could cause injury as well as total destruction of the circuit boards and internals. So there wouldn’t be any quick fix for this but to just buy another building kit or a more expensive battery powered guitar amp. Implementing solution

After we have all the designing, parts, and brainstorming out of the way we need to begin the building process. The amp/speaker cabinet that will house everything, and will mold the sound is the first thing that we need to build. You should build the cabinet out of pine, or plywood because it will give off different warmth, and depth to the sound of the amplifier. We then cut the speaker hole in the front and the design is an open back cabinet that will give off a more bass driven sound. In photos A and B below you can see the finished product. You can also notice in photo B the parts used to finish the project. A. B. (J. Chappell, Nov. 2010) (J. Chappell, Nov. 2010) After building the cabinet and cutting the hole for our speaker, we can put the EV 15” speaker into place. Then we take the four speaker clamps lock it into place, immediately followed by the mesh wired grill. This protects the speaker from vibrating, being crushed if it falls over or if something bumps into it. These precautions will help save you from spending more money on another speaker along the lines of transporting, or moving it on, and off the stage. The next step in our many ahead is the power amp. The power amp we will use in this project to save time and money is a “40watt Kenwood car audio amplifier”. The main reason we use this is to transfer from A.C. to D.C. power. All car stereo amplifiers operate on D.C. power designed for use with a car battery. So we decided that this would be the easiest choice to make it able to operate off a battery. If you will notice in photo C this power amp is the perfect fit in our combo amp. C. D. (J. Chappell, Nov. 2010) (J. Chappell, Nov. 2010) Now that the power has been converted to D.C. how will we be able to control volume, effects, and mix the sound of the amp? We do this by using a preamp, like a digital effects pedal that has everything we need in one board. You could use any digital effect pedal board, or stomp box with a preamp for this part. In this description we are using a “ VOX tone lab LE ” shown above in photo D. This gives us portability and functionality just by hooking the preamps output into the power amps input. This will cut down the expenses of having to buy printed circuit boards that are over priced, and sometimes very confusing to install. So you are done with the simple part of the build, now comes the difficult part. We have our cabinet, our speaker, our power amp, and our preamp. But none of this will function if we don’t have a way to power everything. So since our amplifier is going to operate on D.C. power this gives us the opportunity to move into the next step of our build. We need to choose the battery that will let our amplifier function the longest, allow us to recharge after use, and is the most appropriately suited for maximum potential. Regular batteries such as 9 volts, AA, and AAA batteries do not put out enough voltage to run this for probably any longer than 15 minutes. You also can’t recharge these batteries, so it would cost a small fortune to buy them every five minutes. The only logical battery to use would be a lithium polymer rechargeable battery, also known as a “ li-po’s”. The li-po is a 3-cell battery rated at “3.7v per cell”, so these battery packs would run at “11.1v” which breaks down to about 44 watts. This is enough power to allow the power amplifier to function. But how long will this keep you playing a gig that lasts an hour or two? The greatest part about these batteries are they only weigh 12 ounces, have about A 1,000 charge life cycle, and will operate on a single charge for about 4-5hrs. The downfall of using this battery pack is they cost $35 a piece! You will need two of them to power the preamp pedal, and the power amplifier. Other than the cost, it is the over all practical battery choice. Even though it cost more right off the top it keeps us from having to use a car battery to give us the power we need to make our face melting amplifier come to life. Evaluation/Conclusion PARTS: | COSTS: | Used Kenwood amplifier | $30.00 | Used VOX tone lab pedal | $40.00 | Lithium polymer rechargeable battery | $35.00 | Used 15’’ EV speaker | $60.00 | Cables | $15.00 | Pine plywood 4x8 | $21.00 | Total: | $201.00 | In conclusion the overall process of this project has been carefully planned out and is properly put into action. In the implementation process of building the battery powered guitar amplifier we chose the cheapest and quickest possible way to build the amplifier. The best choice was to use the random car audio parts and a lithium polymer rechargeable battery pack with the 15”EV speaker to give us the operational battery powered amplifier at the cost we desired. Below is the budget sheet for parts acquired.

References: 1. Frazier, K (2011) “grid1.com products” Grid 1 LLC. 2. Chapel, J (Nov 9, 2010) “ Build a Gig-Worthy Battery-Powered Guitar Amp on the Cheap!” retrieved on Oct. 10, 2011 from the world wide web: www.harmonycentral.com 3. Thompson, A (August, 2010) “Guitar Player Mag.” Retrieved on Oct. 12, 2011 from the world wide web: www.grid1.com/news/Guitar_Player_G1_Review_Aug_2010.pdf 4. Marshall, J ( 1997-2011) “ Marshall amplification plc.” What is valve state Retrieved on Oct. 21, 2011 from the world wide web: www.marshallamps.com/heritage/valvestate_i/valvestate_i_01.asp 5. Boilermaker 88 (Oct. 30, 2010) “battery powered tube amp (senior design)” retrieved on Oct. 27, 2011 from the world wide web: www.music-electronics-forum.com/t9913/ 6. Line 6 ( 2011) “line 6 inc.” retrieved on Nov. 4, 2011 from the world wide web: www.line6.com/microspider/ 7. Warren, A (Nov. 3, 2011) “guitar center inc.” Guitar tech. 8. Chiarella .A (Mar. 8, 1997) “Tube Magic” retrieved on Oct. 10, 2011 from the world wide web: www.highbeam.com

Similar Documents

Free Essay

Stethoscope

...HEART & BREATH SOUNDS AMPLIFIER BME 201 Department of Biomedical Engineering University of Wisconsin-Madison March 9, 2011 Drew Birrenkott, Team Leader Bradley Wendorff, Communicator Jared Ness, BWIG Caleb Durante, BSAC Client Scott Springman, M.D. UW School of Medicine and Public Health Department of Anesthesiology Advisor Willis Tompkins, Ph.D. University of Wisconsin-Madison Department of Biomedical Engineering Table of Contents Abstract……………………………………………………………………………………………3 Problem Statement………………………………………………………………………………...4 Background and Other Methods…………………………………………………………………..5 Client Requirements……………………………………………………………………………….6 Data Collection & Interpretation………………………………………………………………….7 Current Design………………………………………………………………………………….....9 Design Options…………………………………………………………………………………..11 Design Matrices………………………………………………………………………………….13 Future Work……………………………………………………………………………………..16 References………………………………………………………………………….……………17 Appendices Appendix A: Product Design Specifications……………………………………………………18 2    Abstract The standard acoustic stethoscope has become the hallmark of the medical profession. In wide use for over a hundred years, it is not a device that is easily replaced by new technology. In recent years electronic stethoscopes have entered the market for prices roughly two times as much as standard stethoscopes. Our client is requesting that we design an electronic stethoscope that increases the functionality of the standard stethoscope three...

Words: 5283 - Pages: 22

Free Essay

Electronics

...Electronics FOR DUMmIES by Gordon McComb and Earl Boysen ‰ TEAM LinG - Live, Informative, Non-cost and Genuine ! Electronics For Dummies® Published by Wiley Publishing, Inc. 111 River Street Hoboken, NJ 07030-5774 Copyright © 2005 by Wiley Publishing, Inc., Indianapolis, Indiana Published by Wiley Publishing, Inc., Indianapolis, Indiana Published simultaneously in Canada No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, scanning or otherwise, except as permitted under Sections 107 or 108 of the 1976 United States Copyright Act, without either the prior written permission of the Publisher, or authorization through payment of the appropriate per-copy fee to the Copyright Clearance Center, 222 Rosewood Drive, Danvers, MA 01923, (978) 750-8400, fax (978) 646-8600. Requests to the Publisher for permission should be addressed to the Legal Department, Wiley Publishing, Inc., 10475 Crosspoint Blvd., Indianapolis, IN 46256, (317) 572-3447, fax (317) 572-4355, e-mail: brandreview@wiley.com. Trademarks: Wiley, the Wiley Publishing logo, For Dummies, the Dummies Man logo, A Reference for the Rest of Us!, The Dummies Way, Dummies Daily, The Fun and Easy Way, Dummies.com, and related trade dress are trademarks or registered trademarks of John Wiley & Sons, Inc. and/or its affiliates in the United States and other countries, and may not be used without written...

Words: 127080 - Pages: 509

Free Essay

The Art of Digital Recording

...The Art of Digital Audio Recording The Art of Digital Audio Recording A Practical Guide for Home and Studio Steve Savage With photos by Robert Johnson and diagrams by Iain Fergusson 3 3 Oxford University Press, Inc., publishes works that further Oxford University’s objective of excellence in research, scholarship, and education. Oxford New York Auckland Cape Town Dar es Salaam Hong Kong Karachi Kuala Lumpur Madrid Melbourne Mexico City Nairobi New Delhi Shanghai Taipei Toronto With offices in Argentina Austria Brazil Chile Czech Republic France Greece Guatemala Hungary Italy Japan Poland Portugal Singapore South Korea Switzerland Thailand Turkey Ukraine Vietnam Copyright © 2011 by Steve Savage Published by Oxford University Press, Inc. 198 Madison Avenue, New York, New York 10016 www.oup.com Oxford is a registered trademark of Oxford University Press. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior permission of Oxford University Press. Library of Congress Cataloging-in-Publication Data Savage, Steve. The art of digital audio recording: a practical guide for home and studio / Steve Savage; with photos by Robert Johnson and diagrams by Iain Fergusson. p. cm. Includes bibliographical references and index. ISBN 978-0-19-539409-2; 978-0-19-539410-8 (pbk.) 1. Sound studios. 2. Sound—Recording...

Words: 111233 - Pages: 445

Free Essay

Physics

...*Physics Prelims (1-7).qxd 12/11/08 1:00 PM Page 1 SCIENCE VISUAL RESOURCES PHYSICS An Illustrated Guide to Science The Diagram Group *Physics Prelims (1-7).qxd 12/11/08 1:00 PM Page 2 Physics: An Illustrated Guide to Science Copyright © 2006 The Diagram Group Author: Derek McMonagle BSc PhD CSci CChem FRSC Editors: Catherine Gaunt, Jamie Stokes Design: Anthony Atherton, Richard Hummerstone, Lee Lawrence, Tim Noel-Johnson, Phil Richardson Illustration: Peter Wilkinson Picture research: Neil McKenna Indexer: Martin Hargreaves All rights reserved. No part of this book may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, or by any information storage or retrieval systems, without permission in writing from the publisher. For information contact: Chelsea House An imprint of Infobase Publishing 132 West 31st Street New York NY 10001 For Library of Congress Cataloging-in-Publication Data, please contact the Publisher ISBN 0-8160-6167-X Chelsea House books are available at special discounts when purchased in bulk quantities for businesses, associations, institutions, or sales promotions. Please call our Special Sales Department in New York at 212/967-8800 or 800/322-8755. You can find Chelsea House on the World Wide Web at http://www.chelseahouse.com Printed in China CP Diagram 10 9 8 7 6 5 4 3 2 This book is printed on acid-free paper. *Physics Prelims (1-7).qxd 12/11/08 1:00 PM Page...

Words: 78462 - Pages: 314

Premium Essay

Ee 101 for New Beginners

...Electrical Engineering 101 Third Edition Electrical Engineering 101 Everything You Should Have Learned in School… but Probably Didn’t Third Edition Darren Ashby AMSTERDAM • BOSTON • HEIDELBERG • LONDON NEW YORK • OXFORD • PARIS • SAN DIEGO SAN FRANCISCO • SINGAPORE • SYDNEY • TOKYO Newnes is an imprint of Elsevier Newnes is an imprint of Elsevier 225 Wyman Street, Waltham, MA 02451, USA The Boulevard, Langford Lane, Kidlington, Oxford, OX5 1GB, UK © 2012 Elsevier Inc. All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the Publisher. Details on how to seek permission, further information about the Publisher’s permissions policies and our arrangements with organizations such as the Copyright Clearance Center and the Copyright Licensing Agency, can be found at our website: www.elsevier.com/ permissions This book and the individual contributions contained in it are protected under copyright by the Publisher (other than as may be noted herein). Notices Knowledge and best practice in this field are constantly changing. As new research and experience broaden our understanding, changes in research methods, professional practices, or medical treatment may become necessary. Practitioners and researchers must always rely on their own experience and knowledge in evaluating...

Words: 111107 - Pages: 445

Premium Essay

Buisness Ideas

...101 Small Business Ideas for Under $5,000 Corey Sandler Janice Keefe John Wiley & Sons, Inc. 101 Small Business Ideas for Under $5,000 Corey Sandler Janice Keefe John Wiley & Sons, Inc. This book is printed on acid-free paper. ● ∞ Copyright © 2005 by Word Association, Inc. All rights reserved. Published by John Wiley & Sons, Inc., Hoboken, New Jersey. Published simultaneously in Canada. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, scanning, or otherwise, except as permitted under Section 107 or 108 of the 1976 United States Copyright Act, without either the prior written permission of the Publisher, or authorization through payment of the appropriate per-copy fee to the Copyright Clearance Center, Inc., 222 Rosewood Drive, Danvers, MA 01923, (978) 750-8400, fax (978) 646-8600, or on the web at www.copyright.com. Requests to the Publisher for permission should be addressed to the Permissions Department, John Wiley & Sons, Inc., 111 River Street, Hoboken, NJ 07030, (201) 748-6011, fax (201) 748-6008. Limit of Liability/Disclaimer of Warranty: While the publisher and author have used their best efforts in preparing this book, they make no representations or warranties with respect to the accuracy or completeness of the contents of this book and specifically disclaim any implied warranties of merchantability or fitness for a particular purpose...

Words: 90587 - Pages: 363

Premium Essay

Abc Abc

...Breakout Strategy Meeting the Challenge of Double-Digit Growth Sydney Finkelstein Charles E. Harvey Thomas C. Lawton (McGraw-Hill, New York, 2006) Table of Contents Dedication Acknowledgements Table of Contents List of figures Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 Chapter 7 Chapter 8 Chapter 9 Breakout Strategy Getting on the Fast Track Staying out Front Breakout Dynamics Putting Vision to Work Being a Magnet Company Delivering the Promise Executing Breakout Breakout Leadership Appendix: case study companies Index List of Figures Figure 1.1 Figure 2.1 Figure 3.1 Figure 4.1 Figure 5.1 Figure 5.2 Figure 5.3 Figure 5.4 Figure 5.5 Figure 6.1 Figure 6.2 Figure 6.3 Figure 6.4 Figure 7.1 Figure 7.2 Figure 7.3 Figure 8.1 Figure 8.2 Figure 8.3 Figure 9.1 The Breakout Strategy Cycle Companies Getting on the Fast Track Companies Staying Out Front Types of Capital and the Capital Accumulation Process The Vision Wheel State Transition for Harley-Davidson: Organization State Transition for Harley-Davidson: Culture State Transition for Harley-Davidson: Relationships State Transition for Harley-Davidson: Markets The Six Pillars of a Value Proposition Leveraging up the Apple Value Proposition Reconciling Different Value Propositions Leveraging up Samsung Electronics’ Value Proposition Components of a Business Model Aligning the Business Model and Value Proposition Business Model Needs Analysis Delivering Strategy System Balance and Strategy Delivery at...

Words: 103858 - Pages: 416

Premium Essay

Research

...Australia • Brazil • Japan • Korea • Mexico • Singapore • Spain • United Kingdom • United States SEVENTH EDITION Data Communications and Computer Networks A Business User’s Approach Curt M. White DePaul University Australia • Brazil • Japan • Korea • Mexico • Singapore • Spain • United Kingdom • United States Data Communications and Computer Networks: A Business User’s Approach, Seventh Edition Curt M. White Editor-In-Chief: Joe Sabatino Senior Acquisitions Editor: Charles McCormick, Jr. Senior Product Manager: Kate Mason Editorial Assistant: Courtney Bavaro Marketing Director: Keri Witman Marketing Manager: Adam Marsh Senior Marketing Communications Manager: Libby Shipp Marketing Coordinator: Suellen Ruttkay Media Editor: Chris Valentine Art and Cover Direction, Production Management, and Composition: PreMediaGlobal Cover Credit: © Masterfile Royalty Free Manufacturing Coordinator: Julio Esperas © 2013 Course Technology, Cengage Learning ALL RIGHTS RESERVED. No part of this work covered by the copyright herein may be reproduced, transmitted, stored or used in any form or by any means—graphic, electronic, or mechanical, including but not limited to photocopying, recording, scanning, digitizing, taping, Web distribution, information networks, or information storage and retrieval systems, except as permitted under Section 107 or 108 of the 1976 United States Copyright Act—without the prior written permission of the publisher. For product information and technology assistance...

Words: 234459 - Pages: 938

Free Essay

Comp Txt

...1 2 Acknowledgements p.1 tr ©iStockphoto.com/Dennys Bisogno, etc t = top, b = bottom, l = left, r = right, c = centre Computer hardware and software brand names mentioned in this book are protected by their respective trademarks and are acknowledged. Scratch is developed by the Lifelong Kindergarten Group at the MIT Media Lab. See http://scratch.mit.edu Every effort has been made to trace all copyright holders, but if any have been inadvertently overlooked the publishers will be pleased to make the necessary arrangements at the first opportunity. Although every effort has been made to ensure that website addresses are correct at time of going to press, Hodder Education cannot be held responsible for the content of any website mentioned in this book. It is sometimes possible to find a relocated web page by typing in the address of the home page for a website in the URL window of your browser. Photo credits p.1 © peno – Fotolia; p.15 © Dmitrydesigner/Fotolia; p.16 ©iStockphoto.com/Karl Yamashita; p.57 © Romanchuck – Fotolia; p.58 t © C Squared Studios/Photodisc/Getty Images, m ©Dmitriy Melnikov - Fotolia.com, b © Popova Olga/Fotolia; p.59 © picsfive – Fotolia; p.65 © Manfred Schmidt – Fotolia.com; p.67 © dja65 – Fotolia; p.68 © Konstantin Shevtsov – Fotolia; p.69 t © Miguel Navarro/Stone/Getty Images, b © Piero Cruciatti/Alamy; p.73 © Jamdesign/Fotolia; p.78 and 79 © adisa – Fotolia; p.81 © Mykola Mazuryk – Fotolia; p.82 t © Mauro Rodrigues/Fotolia...

Words: 49691 - Pages: 199

Premium Essay

Lead User Research

...LEAD USER PROJECT HANDBOOK: A practical guide for lead user project teams INDUSTRIAL PRODUCTS AND SERVICES CONSUMER PRODUCTS AND SERVICES PROFESSIONAL PRODUCTS AND SERVICES Joan Churchill • Eric von Hippel • Mary Sonnack PREFACE When Joan Churchill, Mary Sonnack and I were doing lead user projects for our research in the 1990’s, we needed some standardized training materials for lead user project teams. We therefore wrote this handbook, and progressively revised it based upon field experience. Our final revisions were made in 1998. Then, our manuscript just sat there, as we all went on to other work. It is now 2009, and researchers and practitioners have learned a great deal more than we knew in 1998 about lead users, and how to run lead user projects. In a year or two, we expect that completely new handbooks will supersede this one. In particular, we are eagerly looking forward to one now being planned by Professors Christoph Hienerth and Marion Poetz of Copenhagen Business School. Still, while we are waiting for newer materials, we think that lead user teams, consultants, and teachers may well find something of value in what we wrote 10 years ago. Accordingly we are posting this book on the Web under a Creative Commons license that permits free downloading. It can be used in conjunction with 6 short lead user project training videos developed by Joan Churchill. These are also available on the Web for free downloading from http://mit.edu/evhippel/www/index...

Words: 53514 - Pages: 215

Premium Essay

Doc, Docx, Pdf, Wps, Rtf, Odt

...Dan Brown Deception Point Deception Point by Dan Brown Acknowledgments With warm thanks to Jason Kaufman for his superb guidance and insightful editorial skills; Blythe Brown for her tireless research and creative input; my good friend Jake Elwell at Wieser & Wieser; the National Security Archive; the NASA Public Affairs Office; Stan Planton, who continues to be a source for information on all things; the National Security Agency; glaciologist Martin O. Jeffries; and the superb minds of Brett Trotter, Thomas D. Nadeau, and Jim Barrington. Thanks also to Connie and Dick Brown, the U.S. Intelligence Policy Documentation Project, Suzanne O’Neill, Margie Wachtel, Morey Stettner, Owen King, Alison McKinnell, Mary and Stephen Gorman, Dr. Karl Singer, Dr. Michael I. Latz of Scripps Institute of Oceanography, April at Micron Electronics, Esther Sung, the National Air and Space Museum, Dr. Gene Allmendinger, the incomparable Heide Lange at Sanford J. Greenburger Associates, and John Pike at the Federation of American Scientists. Author’s Note The Delta Force, the National Reconnaissance Office, and the Space Frontier Foundation are real organizations. All technologies described in this novel exist. “If this discovery is confirmed, it will surely be one of the most stunning insights into our universe that science has ever uncovered. Its implications are as far-reaching and awe-inspiring as can be imagined. Even as it promises answers to some of our oldest questions, it poses still...

Words: 144469 - Pages: 578

Premium Essay

The Deception Point

...Acknowledgments With warm thanks to Jason Kaufman for his superb guidance and insightful editorial skills; Blythe Brown for her tireless research and creative input; my good friend Jake Elwell at Wieser & Wieser; the National Security Archive; the NASA Public Affairs Office; Stan Planton, who continues to be a source for information on all things; the National Security Agency; glaciologist Martin O. Jeffries; and the superb minds of Brett Trotter, Thomas D. Nadeau, and Jim Barrington. Thanks also to Connie and Dick Brown, the U.S. Intelligence Policy Documentation Project, Suzanne O'Neill, Margie Wachtel, Morey Stettner, Owen King, Alison McKinnell, Mary and Stephen Gorman, Dr. Karl Singer, Dr. Michael I. Latz of Scripps Institute of Oceanography, April at Micron Electronics, Esther Sung, the National Air and Space Museum, Dr. Gene Allmendinger, the incomparable Heide Lange at Sanford J. Greenburger Associates, and John Pike at the Federation of American Scientists.   Author's Note The Delta Force, the National Reconnaissance Office, and the Space Frontier Foundation are real organizations. All technologies described in this novel exist.   If this discovery is confirmed, it will surely be one of the most stunning insights into our universe that science has ever uncovered. Its implications are as far-reaching and awe-inspiring as can be imagined. Even as it promises answers to some of our oldest questions, it poses still others even more fundamental...

Words: 144424 - Pages: 578

Premium Essay

Promises Not Kept

...THE END of POVERTY Economic Possibilities for Our Time JEFFREY D. SACHS THE PENGUIN PRESS N E W YORK 2005 THE PENGUIN PRESS Published by the Penguin Group Penguin Group (USA) Inc.. 375 Hudson Street. New York, New York 10014, U.S.A. Penguin Group (Canada), 10 Alcorn Avenue, Toronto, Ontario, Canada M4V 3B2 (a division of Pearson Penguin Canada Inc.) Penguin Books Ltd, 80 Strand, London WC2R ORL, England Penguin Ireland, 25 St. Stephen's Green, Dublin 2, Ireland (a division of Penguin Books Ltd) Penguin Books Australia Ltd, 250 Camberwell Road, Camberwell, Victoria 3124, Australia (a division of Pearson Australia Group Pty Ltd) - Penguin Books India Pvt Ltd, 11 Community Centre, Panchsheel Park, New Delhi-110 017, India ' Penguin Group (NZ), Cnr Airborne and Rosedale Roads, Albany, Auckland 1310, NewZealand (a division of Pearson New Zealand Ltd) - Penguin Books (South Africa) (Pty) Ltd, 24 Sturdee Avenue, Rosebank, Johannesburg 2196, South Africa Penguin Books Ltd, Registered Offices: 80 Strand, London WC2R ORL, England First published in 2005 by The Penguin Press, a member of Penguin Group (USA) Inc. Copyright ©Jeffrey D. Sachs, 2005 All rights reserved Page 397 constitutes an extension of this copyright page, LIBRARY OF CONGRESS CATALOGING IN PUBLICATION DATA Sachs, Jeffrey. The e n d of poverty / Jeffrey Sachs. p. cm. Includes bibliographical references and index. ISBN 1-59420-045-9 1. Poverty—Developing countries. 2. Developing countries—Economic policy...

Words: 154314 - Pages: 618

Free Essay

Gd-Pi

...Hundreds(of(real(personal(accounts(of Group'Discussions'&'Personal'Interviews during(MBA(admissions(to(India’s(best(B9schools Written'by Compiled'by Loads'of'MBA'Aspirants The'PaGaLGuY'MadCapz'Group PaGaLGuY.com Antholo gy Hundreds of real personal accounts of Group Discussions and Personal Interviews during MBA admissions to India’s best business schools. In this edition: The IIMs at Ahmedabad, Bangalore, Calcutta, Lucknow, Indore & Kozhikode. Written by Loads of MBA aspirants Compiled by The PaGaLGuY MadCapz Team PaGaLGuY GD-PI Anthology Copyright © 2011, PaGaLGuY.com All text and content in this document is solely owned by PaGaLGuY.com. Reproduction without permission in any form or means is illegal. Special copy prepared exclusively for mustafa rokerya Get your own Free personalized copy (with your name on it) of this book from http://www.pagalguy.com/books/ What this book is about What is a real IIM interview like? What kind of questions do they ask and what judgments do applicants have to make while answering them? Since 2003, those with real Group Discussion and Personal Interview calls from India’s top bschools have been posting entire and detailed transcripts of their admission interviews immediately after they happen, so that others slotted for later interviews can learn what GDPI is going to be like this year. This book is a collection of dozens of handpicked GDPI experiences from the country’s top bschools during the admission...

Words: 178933 - Pages: 716