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Horowitz, Mannie
"How to Design and Build Audio Amplifiers"
TAB, 1980, 350 pp.
Middleton, Robert G.
"Hi-Fi Stereo Servicing Guide"
Howard Sams, 1970, 111 pp.
Owens, Paul
"Stereo Troubleshooting and Repair Manual"
Reston Publ. Co., 1979, 246 pp.
RCA
"RCA Receiving Tube Manual (Technical Series RC-20)"
RCA, 1960, 432 pp.
Reich, Herbert J.
"Theory and Applications of Electron Tubes"
McGraw-Hill, 1944, 736 pp.
Spencer, Carl W.
"Designing and Building Your Own Stereo Furniture"
TAB, 1981, 383 pp.
Weems, David B.
"30 Projects to Improve Your Stereo System"
TAB, 1981, 239 pp.
Technical Books Online - Numerous PDFS of out-of-copyright audio electronics books.
Discover Circuits - Audio Circuits
How to Begin Restoring Old Records
Transferring LPs to CDR: Some Advice
Jay Rose's Tutorials and Audio Data
Helmholtz Resonance
Digital Format Definitions:
Equipment Owned by the Author:
"The A-27 Integrated Amplifier was the most expensive component in the Series 20 line, with a list price of $1250.00. Pioneer clearly intended to incorporate much of the circuit design from the M-type amplifiers, but have a greater degree of control than the C-21 pre-amp. It used the "Magni-Wide" DC power amplifier section, but also used a total of three other all-DC-configured amplifier stages: a DC phono equalizer amp, a DC flat amp and DC "head amp" for Moving Coil (MC) type phono cartridges. Like the M-25, the A-27 used RETs in the output stage. It also used automatic Class AB switching, operating in Class A mode until the sudden audio peaks automatically switched to Class B.The front panel was a very clean design. A 32-step attentuator was used for the large volume control knob. The function selector was all the way to the right for Phono 1, Phono 2, Tuner and Aux. The tone control section could be bypassed completely if desired via one of the toggle switches. All the other control knobs were mounted behind a clear smoked plastic panel. All in all, the A-27 was superb industrial design, as well as "musical"--as audiophiles like to say.
The phono equalizer section incorporated dual Field Effect Transistors (FETs) to guarantee a wide dynamic range and a signal-to-noise ratio of 90 dB in the phono section. Selectable load resistance and load capacitance allowed audiophiles to be able to select various different phono cartridges of their choice.
The A-27 used two large power supply transformers, one for each channel, positioned on the left of the chassis, and four electrolytic capacitors. The circuitry employed 206 semi-conductors: four FETs, 122 transistors and 80 diodes.
The A-27 was rated at 120 watts per channel into 8 ohms, from 5 hz to 30 kHz with no more than 0.012% total harmonic distortion. Between 20 Hz and 20 kHz, toal harmonic distortion was a mere 0.008%--virtually non-existant distortion! Intermodulation distortion was only 0.006%. The A-27 entire frequency response ranged from 5 Hz to 200 kHz.
It measured 17.88 inches wide, 6.63 inches high and 18.44 inches deep. It weighed 56 pounds, 7 ounces. The M.S.R.P. of the A-27 was $1250.00."
"I just wanted to share my latest Kenwood audio adventure. This is my first post to this group.I've got a pair of Kenwood L-07M amps that I purchased in 1978 that I recently modified. I had a Kenwood L-07C pre-amp until about 1985 when it started giving me grief (flaky MOSFET, relatively low S/N). For context, I now use a Nakamichi CA-5 preamp (vintage 1986, original owner), and for source material I use a variety of CD players all running through a Musical Fidelity A324 DAC (get's rid of all the digital grundge and phase distortion). I still have my 1975 Kenwood turntable (nothing special), that I use regularly, and a Kenwood KT-6500 Tuner. BTW, if you ever wanted high-end sound from a CD juke box, the A324 is the way to go. Finally, the amps currently drive a very revealing pair of Revel F30s (more about that later).
The L-07M adventure began when the DC protection circuit started to degrade in 1997. Fellow L-07M owners may have experienced this - you know, when the amp takes 10-20 seconds for the protection relays to turn on instead of 1-2 seconds, and then over time (years) it continues to degrade until it takes nearly an hour for the relays to turn on. Well, it took about 5 years for my DC protection circuit to reach the one-hour mark. Fortunately, since these amps only burn 35 watts on idle, I just left them on 24/7.
I finally found a very talented audio engineer - the designer of the high-end Wavestream Kinetics V8 tube amplifier - to work on my L-07M amps. I knew I was in good hands when I found that he still listened to a Kenwood KA-9100 bolted to Mirage speakers.
Back in 1985 when the L-07C preamp started failing, I purchased the original service and owner's manuals for the L-07M - just in case I might have problems with those. Who knew that I'd need them 18 years later!
I'll digress for moment - the only reason I still have the L-07M amps is because every 2 years or so, I drag the amps down to the local audio shops to run the amps side-by-side with other high-end amps (including Krell and Levinson). I always go in thinking I'm going to lay down $4-5k on new amps, and I always come back surprised that the L-07M amps sound better than most amps in that price range. OK - the Krell and Levinson monoblock amps are definitely smoother and more dynamic, but it's pretty subtle. I wasn't thinking "I got have those amps". Frankly, even the Levinson/Krell dual-mono amps do not match the L-07M amps for imaging, only the Levinson/Krell monoblocks beat them (to my ear). If you can't tell, I'm a big believer in monoblocks.
Further digression - I added the Revel F30 speakers in 2001. If you want a revealing speaker, these are for you. But the high frequency harshness on the L-07M became hard to ignore with this revealing a speaker, even with basic mods like wiring, interconnects and cables. FYI, the Revel F30 has a mid-range to die for if you like piano and vocals.
Back to the L-07M mods...
Besides fixing the DC protection circuit, which turned out to be a hard to find leaky transistor and diode, we reviewed the topology of the amp and replaced or by-passed about 13 electolytic capacitors with high quality film caps. The film caps shunt the high frequencies much better than the electrolytics, smoothing out the somewhat tizzy/grainy high-end, and sweetening the mid-range just a tad.
Other very simple DIY mods done to these amps over the years that smoothed out the highs while increasing the resolution and dynamics:
- Kimber cable for internal power
- Cardas wiring for internal signal
- replaced the AC power plug with an IEC connector and 14ga cable
- replaced the binding posts with Cardas posts
You'd be amazed what a difference some signal/output wire and a power cable can make. I was a cable skeptic back in the 1980s until I started using Kimber on my speakers and Cardas for interconnects.
Wow! I was shocked at just how smooth these amps are now with the capacitor upgrade. The audio engineer - the designer and builder of $20-40k tube amps - was equally surprised. The mod'd L-07M amps have a silky smooth top end and a sweet mid-range (comparable to tubes), complementing the Revel F30 speakers very nicely. I used to think that the L-07M amps were ultimately bass amps and too harsh on the top end. No more, I love these amps. The audio engineer was so impressed with the sound that he wants to find a pair of L-07M amps for himself.
The other thing that amazes people about the L-07M, myself included, is the fact that these amps stay so cool. The rule of thumb is that hotter = better. Not so with the L-07M. I'm still breaking in the amps, and they are just getting smoother and smoother. I used to be a break-in skeptic, but I've heard it enough times to believe something changes - I just don't know what.
If anyone wants to part with their L-07M amps, call me. I'd like to mod them and drive my 5.1 system with them (Revel M20 rear speakers and C30 center).
If anyone wants to mod their L-07M amps, I have the original schematics and parts lists. And, if you want a professional to do the work for you (it might take 6-8 weeks for him to order the parts and put them in), I can provide contact information."
"I have 4 of these as well now. I'll be doing some fun stuff in the future, like trying new Motorola low distortion perforated emitter bipolar outputs, and replacing caps, etc. I would love to simply put black gate caps in all positions (except the 2 main supply caps).I can tell you the input on these is DC coupled, so there is not one cap in the audio stage signal path from input to output. Other nice to know design highlights include a jfet cascode front end, and fully regulated front end/driver supply."
The Classics
Scottschtoff
Scott tuners (ebay)
Scott receivers (ebay)
Scott amps (ebay)
Scott 342C FM Receiver ( ebay)
Scott 260 Integrated Amp (ebay)
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Misc
Pioneer SX-770 (ebay)
Marantz 2230 (ebay)
Kenwood 5150 (ebay)
Onkyo TX-4500 (ebay)
Grundig (ebay)
Hallicrafter (ebay)
Russound (ebay)
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Denon
Harman Kardon
Kenwood
TEAC/Tascam
Yamaha
The Big Boys
Via Audiokarma, here's a list of the biggest of the big stereo receivers from the late 1970s golden age.
The over 200 WPC gang:
The 200 WPC club:
The 160 WPC class:
Labels:
Electronics Supplies and Info:
Cables:
Magazines:
Parts and Accessories:
CD Recorders
Phono Preamps
Speakers
GoodSound - for finding a stereo system on a budget
Cassettes:
Recording:
Multichannel:
Upsampling:
ADC:
Audio Advisor (clearance specials)
Austin
* Natural Sound (NAD 118 - $399)
* Stereo Trading Outlet (NAD 118 - $399)
Jun. 2002
12 - BatMon to the Rescue: A Battery Monitor for RC Applications - T. Black
20 - Extreme OSMC (Part 1): Open Source Motor Control Project - S. Lloyd
24 - Ultra-Low Power Flash MCU MSP430 Design Contest Winners
28 - Behind the Scenes (Part 2): Software Control - D. Ramirez
40 - Selecting the Best CAN Controller - O. Pfeiffer
44 - Starting Down the Pipeline (Part 1): Hyper-, Super-, Whatever-Pipelines - J. Turley
50 - RoCK Specifications (Part 3): Behavior-Based Programming - J. Jones et al.
58 - Still Swimming with the STK500 Onto the JTAG ICE - F. Eady
66 - Invisible Components - E. Nisley
70 - SmartMedia File Storage (Part 1): A Windows/DOS-Compatible File System - J. Bachiochi
Jul. 2002
12 - Driving the NKK Smartswitch (Part 1): Configuration and Software - A. Kagan
20 - Build a Graphics LCD Bias Supply AVR MCU-Based AC Phase Controller - B. Millier
24 - An 80C31-Controlled Power Supply - N. Rios
30 - Extreme OSMC (Part 2): The Modular OSMC Brain - S. Lloyd
34 - Taming the Transients - G. Novacek
42 - LCD Controller for a PIC - P. Chia
46 - Building a Modular Programming Platform (Part 1): The Program Module - F. Eady
52 - RoCK Specifications (Part 4): Tying Up Loose Ends - J. Jones et al.
60 - Dealing with Motor Control Dead-Time Distortion - R. Bannatye et al.
66 - Starting Down the Pipeline (Part 2): The Long and Short of It - J. Turley
70 - SmartMedia File Storage (Part 2): Directory Entries - J. Bachiochi
Aug. 2002
12 - Are You Grounded? - G. Novacek
20 - Embedded Smarts Fix Analog Flaws - T. Napier
26 - Driving the NKK Smartswitch (Part 2): Graphics and Text - A. Kagan
30 - PC Audio Bits - E. Nisley
36 - Digital Ignition System: Building Without a Distributor - F. Bachleda
44 - RISCy Business (Part 1): RISC Projects by Cornell Students - J. Bachiochi
52 - An Open-Source HCS Project - N. Cherry
56 - The OO CarolBot - C. Cantrell
62 - The AT89C51/52 Flash Memory Programmers - N. Rios
70 - Building a Modular Programming Platform (Part 2): Building the PCB - F. Eady
76 - SmartMedia File Storage (Part 3): Reading a File - J. Bachiochi
Sep. 2002
12 - RISCy Business (Part 2): Impressive Student Designs - J. Bachiochi
18 - Office Supervisor: A Control System Based on SMS - J. Slavat
26 - The PSoC 5-Cent Modem - R. Hood
34 - Build Your Own 8051 Web Server - J. Brady
42 - Automatic Blood Pressure Meter - A. Britov et al.
50 - Killing the EMI Demon - N. Rogers
58 - Put Out the Fire: Detect Flames with the UV TRON Sensor - T. Baraniak
62 - Internet Enabling Made Easy - F. Eady
70 - SmartMedia File Storage (Part 4): Getting Your Data Inside - J. Bachiochi
Oct. 2002
12 - 2-D or Not 2-D? - M. Courtney
20 - High-Frequency Job: Frequency Counter and VFO Controller - R. Hosking
24 - A Solar-Powered MSP430 RObot - J. Altenburg
30 - Light the Way: An LED-Based Alternative - P. Ching et al.
36 - Convert Your PC Sound Card: Make a DC-Coupled Arbitrary Waveform Generator - D. Prutchi et al.
44 - Choosing Your LCD - R. Ferrabone
50 - Audio Transformation - E. Nisley
54 - Design with STKxxx Parts: Build an Ethernet Controller - F. Eady
62 - 12, 16, 18, Hike! Dashing for Flash Cash - J. Bachiochi
Nov. 2002
12 - Embedded Real-Time Java in an MPU - S. Umar
24 - Efficient, Practical Adders for FPGAs - V. Kantabutra et al.
38 - A Low-Power Embedded Thermal Sensor System - D. Kakumanu et al.
44 - Ultrasonic Homing Device - T. Baraniak
48 - The Air Data Computer - R. Soennichsen
58 - Geckodriving Your Motor Control Applications - F. Eady
64 - ARMs to ARMs (Part 1): Welcome to the World of ARM - R. Martin
70 - Smart Auto Brake Light Eliminates Turn Indicators - J. Bachiochi
Dec. 2002
10 - Wireless Data Acquisition Using Bluetooth - M. R. Basheer
20 - Interfacing with Frequency Synthesizers - J. Teller
24 - Vector-SoC: A 1-GHz Vectorial Network Analyzer - R. Lacoste
36 - ARMs to ARMs (Part 2): Delving Deeper into the World of ARM - R. Martin
40 - Quad Bench Power Supply - B. Millier
52 - A Wireless Temperature Sensor Stew - F. Eady
62 - HTML Front Panels - E. Nisley
66 - Smart RF Designing: Don't Put All of Your Eggs in One Basket - J. Bachiochi
72 - A Low-Power Photoflash - T. Baraniak
Jan. 2003
12 - Use Frequency Modulation to Send ASCII Data - T. Napier
18 - The (G)Eiger Sanction: The Design, Construction, and Interfacing of a Simple
Radiation Detector - T. Dahlin
26 - The PSoC RangeFinder: A Simple Ultrasonic Distance Meter - F. Piana
32 - Where's the Hardware? - E. Hwang
40 - AVR Video Generator: Teaching Programming and Graphics - B. Land
44 - Building an Electric Airplane - G. Novacek
52 - Embedded XML: Make Your Customer's IT Department Happy - E. Steinfeld
58 - Construct an ATA Hard Drive Controller - F. Eady
68 - ARMS to ARMS (Part 3): Working in the World of ARM - R. Martin
72 - GUI Interfacing: A Straightforward, Simple Solution - J. Bachiochi
Feb. 2003
12 - USB Parallel Port - J. van de Kramer
20 - MCS-51 SBC for the Classroom (Part 1): Hardware - P. Deshpande et al.
30 - GPS-GSM Mobile Navigator - M. Chao et al.
38 - A Wireless Indoor/Outdoor Humidity Meter - K. Macleish
44 - Easy Image Processing Camera Interfacing for Robotics - D. Herrington
54 - A P89C668 Development Board for 8051 Fans - F. Eady
62 - Nonlinear Mixing - E. Nisley
68 - Newcomer Nitron: Motorola's Leading 6/16-Pin MCUs - J. Bachiochi
76 - Simple EL-Lamp Driver - D. Prabakaran
Mar. 2003
10 - 2-D Optical Position Sensor - R. Johnson et al.
20 - Intelligent Light-Effects Controller for Entertainment Systems - V. Kremin
28 - MCS-51 SBC for the Classroom (Part 2): Software Development - P. Desphande et al.
40 - Updating the Home Control System (Part 1): FPGA Upgrade Board - R. Morrison
46 - Build an MP3 Player - J. Szymanski
54 - Using Rotary Encoders as Input Devices - B. Millier
60 - A Look at Computer Viruses - C. Cantrell
66 - Get Hooked on Video with the STV5730A - F. Eady
74 - The Switching Approach: Infiltrating the Linear Supply Market - J. Bachiochi
Apr. 2003
12 - Autonomous Robot: Mini-Sumo Meets IsoPod - M. Keesling
20 - Electrical Engineering Robot: Follow the Line - P. Hiscocks et al.
30 - Muscle for High-Torque Robots - L. Mays
36 - Updating the Home Control System (Part 2): FPGA Design Methodology - R. Morrison
42 - Communications Protocol: MIL-STD-1553D Data Bus - G. Novacek
52 - Test-Driving the Z8 - F. Eady
58 - Portable MSP430 DMM - B. M. Pride
66 - Balanced Mixing - E. Nisley
70 - Intro to Mindstorms - J. Bachiochi
76 - Get One-Chip Programmer Power - T. Napier
May 2003
12 - General-Purpose Cable Tester: Stand-Alone or with a GUI - M. Griebling
24 - Automotiive G-Force Meter - R. Tsukashima
28 - Automatic Temp Controller: Data Logger for Slow Cooker - J. Moyer
36 - DTMF-Controlled Remote Switching System - A. Musah
44 - Blueport: Bluetooth Interface for Embedded Systems - Z. Molnar
54 - Updating the Home Control System (Part 3): The Complete Upgrade Solution - R. Morrison
62 - New ICE Age: MPLAB ICE 2000 Replaces PICMASTER - F. Eady
70 - Poor Man's Front Panel - B. Millier
74 - Making Sense of the Gerber File Format - J. Bachiochi
Jun. 2003
10 - Remote Health-Monitoring System - V. Kremin
18 - The Altmotor - C. Dix
26 - Construct a Hand-Held Radiation Monitor - M. Galeev
40 - Build a Graphical User Interface with Tcl/Tk - P. Hiscocks et al.
46 - Battery Power: Feeding the Z3801A - E. Nisley
50 - Time-Triggered Technology - G. Novacek
60 - E-Field Evaluation Module - F. Eady
68 - Encore! Zilog's Z8 Flash Memory-Based Micro - J. Bachiochi
Jul. 2003
10 - Stealth Telephone Screener - R. Wotiz
18 - A Minimal Flash PIC Programmer - T. Napier
22 - Analog's New High-Flying DDS Family - B. Millier
32 - Build a Three-in-One Measurement System - S. Perdomo
42 - Construct a Classroom-Friendly Evaluation Board - B. Korthof
48 - The Perfect PCB Prototype - R. Haendel
50 - Let's Get Small: Code Compression Saves 32-Bit Chips - J. Turley
58 - Build a Coyote Protocol Converter - F. Eady
66 - Spread Spectrum: Theory and Practices - S. Engelberg et al.
72 - D-Classifying Your Audio - J. Bachiochi
Aug. 2003
12 - Wireless CAN Yard Lamp Control - J. Dammeyer
20 - Palm-Enabled Telescope - S. Pope
28 - Build Your Own Four-Function Calculator - D. Ramirez
40 - IR Sensing - E. Nisley
44 - Flexible USB-CAN Bridge - C. Beiferman
50 - The WiFi SniFi: Sniffing In and Out of Wireless Networks - R. Franz
60 - Spotlight on the Renesas H8 Family - J. Bachiochi
70 - Mission Possible: Achieve Cheap USB Connectivity - F. Eady
Sep. 2003
12 - RS-485 Network for Embedded Systems - S. Ambekar
24 - Design a Wide-Range RS-232 Concentrator Box - D. Wiklund et al.
32 - Audio Spectrum Analyzer with a Twist - V. Koev
42 - The XY-Plotter: Drive High-Resolution LCDs for Less - R. Lacoste
52 - Microprocessor Glue Logic with Verilog HDL - M. Balch
62 - Speed Racer: Stand-Alone, Track-Timing Pinewood Derby Computer - F. Eady
70 - Next Generation Text to Speech - J. Bachiochi
Oct. 2003
10 - Palm OS Data Acquisition - S. Manley
20 - Speed and Location Data Acquisition - T. Fleischman
28 - LED-Based Color Clock: Tell Time Anytime - K. Brown
36 - Embedded Networking with MicroMessaging - O. Pfeiffer
40 - Minimum Mass Waveform Capture - D. Cappels
46 - Serial Sidekick - B. Millier
58 - Simple Data Display: Driving LCDs with Microchip and Atmel Micros - F. Eady
66 - Designing with RGB LEDs - J. Bachiochi
70 - Modulation and Demodulation - E. Nisley
Nov. 2003
14 - Mixed-Signal AVR Simulator - E. Ipek et al.
22 - Timing (Analysis) is Everything: A How-To Guide for Timing Analysis - P. Nowe
34 - Pure Digital Audio: Build an All-Digital Amplifier - Y. Cho et al.
44 - Hierarchical Menus in Embedded Systems - A. Kagan
56 - High-Temperature Superconductor Overview - D. Graves
60 - Programming the 386 in 32-Bit Protected Mode - J. Turley
64 - RF Made Simple - F. Eady
70 - OOPic Eases Programming Headaches - J. Bachiochi
Dec. 2003
10 - Generate Video Using Software Thread Integration - A. Dean et al.
20 - TV Oscilloscope - B. Land
26 - Computer Graphics 101 - C. Cantrell
34 - Reinventing the NSM4005 LED Module - B. Millier
36 - Low-Cost Serial LCD: Convert a Discount LCD Into a Serial ASCII Display - T. Napier
40 - Easing into eZ80Acclaim! - F. Eady
54 - The PICAVRP: A Unique Programming Solution - S. Ball
62 - Implementing CANOpen: The Options - O. Pfeiffer
70 - Tabletop DMX Control - J. Bachiochi
76 - Spin Control: Gyroscopes - T. Cantrell
Jan. 2004
10 - Smart Tracker 2: The Innovative Wire Tracker - R. Lacoste
16 - Build an Inexpensive Temperature-Testing Chamber - S. Hageman
26 - Remote Observation Station - R. Dreher
36 - Fault-Tolerant Electronic Systems - G. Novacek
44 - Single-Pin Analog-to-Digital Conversion Techniques - I. Cyliax
50 - Microcontroller-Based Digital Lock-In Milliohmmeter - D. Cappels
56 - Tracing Current and Voltage - G. Steber
62 - GNU Development - M. T. Jones
70 - Global XPortation: Harness the Power of the Net with the XPort Server - J. Bachiochi
Feb. 2004
10 - CoolRunner-II-Based Digital Telemetry Transmitter - R. Lindgren
20 - Wireless Vehicle Tracking (Part 1): System Basics - K. Merk
28 - Wearable Wireless Transceivers - M. Laibowitz et al.
40 - Picking Apart Microchip's dsPIC - F. Eady
50 - $1 Wireless Interface - L. Martin
56 - Filters and Firmware - E. Nisley
60 - Wireless Water Heater - D. Beadle
68 - The Growth of the Atmel AVR Family - J. Bachiochi
Mar. 2004
12 - TTP/A Protocol and Design - A. N. Rapaka et al.
22 - BasicCards 101 (Part 1): Program Your First SmartCard - B. Millier
28 - Backpack Water Level Monitor - R. Wotiz
38 - Wireless Vehicle Tracking (Part 2): Forth-Based Speech Synthesis - K. Merk
48 - The UCA93LV Advantage: Implement FC on Your PC - F. Eady
58 - Software-Only Hardware Simulation - M. Melkonian
68 - The Ultimate Firmware NCO? - T. Napier
74 - Intelligent Current Sensing: Harness the Power of the ACS750 Hall Effect
Current Sensor - J. Bachiochi
Apr. 2004
14 - Mini Rover 7: Electronic Compassing for Mobile Robotics - J. Miller
24 - BasicCards 101 (Part 2): Use in a Liquid Nitrogen Monitor - B. Millier
30 - Build a Small Robotics Platform - I. Cyliax
38 - Low-Cost Intelligent Sensors Network - V. Kremin
48 - Robot Upgrade: Use a Microcontroller to Emulate an I2C EEPROM - J. Francis
58 - A Wireless Ethernet Solution for the People - F. Eady
68 - USB in Embedded Design (Part 1): The Undeniable Benefits - J. Bachiochi
May 2004
10 - Programmable IR Receiver for PCs - S. Torrioli et al.
16 - Embedded Java Controllers - D. J. Newman
22 - Simple Bluetooth Integration (Part 1): Implementing Bluetooth Modules - A. Rosvall
32 - Wi-Fi Enabled Embedded Control - I. Cyliax
36 - Ethernet Bootloader - A. Smallridge
52 - USI-Based FC Slave - A. Kruger
60 - Get Moving with the MC34921 Power System Control IC - F. Eady
68 - USB in Embedded Design (Part 2): HIDmaker Converts an Application - J. Bachiochi
Jun. 2004
10 - Wireless Monitoring System - A. R. Bitti
20 - Turbocharged Upgrade - P. Rizun et al.
28 - Monopole Antenna Design - B. Thurow et al.
36 - Simple Bluetooth Integration (Part 2): Interfaces and ECI Protocol - A. Rosvall
44 - ZRT Real-Time Operating System - G. Scott
48 - MCU Evolution: New Microcontrollers Meet Increasing Demand - S. Pape
60 - Adaptable Temperature Measurement System - F. Eady
68 - Smart Sensor Design - J. Bachiochi
72 - Designing with the Nios (Part 1): Second-Order, Closed-Loop Servo Control - G. Martin
Jul. 2004
12 - Adaptable Multimedia Thermometer - A. R. Bitti
22 - Full-Field Color Video Frame Grabber - E. Gagnon
32 - Easy Reflow: Build an SMT Reflow Oven Controller - R. Lacoste
36 - Designing with the Nios (Part 2): System Enhancement - G. Martin
42 - Tripe AVR Waveform Capture and Display - D. Cappels
50 - Uncomplicated dsPIC Implementation - F. Eady
56 - Smart-E-Touch: An Intelligent User Interface - B. M. Pride
62 - Graphics LCD Library for the Z8 Encore! - B. Millier
74 - Lose the Crystal: Linear's LTC6903/4 Programmable Oscillator - J. Bachiochi
78 - Motoring (Part 1): Motor Basics
Aug. 2004
14 - Ham Radio Repeater Locator - G. Worstell
22 - Understanding Embedded Security - J. Grand
28 - PICs, DRAMs, and Graphic Displays: Build a Graphics LCD Driver - T. Napier
34 - Closed-Loop Motion Control for Mobile Robotics - R. LeGrand
52 - E-Field Sensor-Based Monitoring System - S. Punnakkal et al.
62 - Stepper Drive (Part 1): Analog - E. Nisley
68 - PSoC 101 - F. Eady
78 - Motoring (Part 2): Motor Control Chips and Software
Sep. 2004
18 - An Engineer's Alarm Clock: Design a PIC-Based Lamp Controller - A. Dahlen
32 - An SPWM Calculator: Using the Switched Integration Technique - A. R. Morato et al.
40 - Uncomplicated Wireless Networking - F. Eady
46 - Multilab: Build a Z8 Encore!-Based Multipurpose Test Instrument - B. Millier
54 - Create a USB Hybrid Hub - J. Bachioti
62 - Microcontroller-Driven Sound Effects - P. Deshpande et al.
72 - DMX-512 Control: Build a USB-to-DMX-512 Controller - S. Kalbermatter
Jan. 2005
16 - Build a Digital Video Recorder - M. Sanchez
20 - Microcontroller-Based Nitrox Analyzer - D. Smith
28 - Artifical Life Display (Part 2): Construction - B. Armstrong
36 - Z8 Encore!-Based Audio Processor
44 - PC-Controlled RC Device - W. MacEvoy and D. Stadelman
52 - Signal Processing with the ADuC812 - S. Engelberg et al.
56 - Digitally Control Power Factor Correction - O. Lathrop
Feb. 2005
16 - Zeroing in on ZigBee (Part 1): Introduction to the Standard - P. Cross
24 - Minimum Mass Wireless Coupler - D. Cappels
30 - Noncontact Infrared Thermometry - B.Millier
40 - Flexible Wireless Telemetry System - B. Sobczyk et al.
68 - Open Source Code Guide - E. White
74 - XTstat: A Portable Wireless X10 Thermostat - H. Jacobs
Mar. 2005
12 - gEDA Design Suite for Linux - S. Brorson et al.
18 - Portable FAT Library for MCU Applications - I. Sham et al.
28 - Embedded Security Design (Part 1): Product Enclosure - J. Grand
34 - Practical Application for TDD (Part 1): Write Software in a Test-Driven
Development Environment - M. Smith et al.
42 - Zeroing in on ZigBee (Part 2): Chipsets and Source Code - P. Cross
52 - Stealth Keyless Entry System - D. Brown
60 - Control an FPGA with I2C - R. Ferrabone
66 - Single-IC 10/100 Ethernet Solution - F. Eady
72 - Joystick Technology - J. Bachiochi
Apr. 2005
12 - AVRcam: A Low-Cost Embedded Vision System - J. Orlando
20 - Simple USB Data Acquisition - B. M. Pride
28 - Automatic Gate Control - P. Gibbs
34 - Embedded Security Design (Part 2): Circuit Board - J. Grand
40 - Foolish LED Tricks - E. Nisley
44 - Digital RC Servo Controller (Part 1): 32-Channel Design - E. Gagnon
48 - Sensor Material for Robotics Applications - J. Bachiochi
52 - Test-Driving the Micro64 - F. Eady
60 - Practical Application for TDD (Part 2): Automated Test-Driven
Environment - M. Smith et al.
68 - Three-Axis Stepper Motor Controller (Part 1): Design Basics - V. Bhanage et al.
May 2005
12 - USB Interface Development - R. Lang
22 - 'Net Radio: Build an Internet Radio Receiver - B. Achard
30 - USB 2.0 Interface - D. Cross-Cole
34 - Build a Wi-Fi Web Server - F. Eady
43 - Digital RC Servo Controller (Part 2): Circuitry Details - E. Gagnon
51 - Three-Axis Stepper Motor Controller (Part 2): Software Implementation - P. Deshpande et al.
62 - Network GPIB Controller - R. Battles et al.
70 - Speech Synthesis with SpeakJet - J. Bachiochi
76 - Connect with USBLab - S. Ball
Jun. 2005
14 - Electronic Angle Measurement - C. Coulston
20 - Precision Frequency Meter - C. Gumbrell
36 - RF Attenuation: Resistors at RF - E. Nisley
42 - Accurate Capacitance Meter - A. Popov et al.
52 - Low-Cost Logic Analyzer for FPGAs - P. Nowe
56 - Embedded USB Made Simpler - F. Eady
62 - Short-Range IR Communications System - R. N. Capper, Jr.
70 - Surface-Mount Technology Guide - J. Bachiochi
80 - Intelligent Automatic Garage Door Opener - V. Lick
Jul. 2005
16 - Speech Waveform Encoder - M. Barron
28 - Connect with eZ80F91-Based VoIP - H. Ni et al.
38 - eZ80-Based Wireless Network System - L. Theunissen
46 - A Fresh Look at VoIP - J. Bachiochi
52 - Bit Flipping Tutorial: An Uncomplicated Guide to Controlling MCU
Functionality - E. Weddington
59 - Add USB to Anything - L. Hauck
64 - Solar-Powered Water Pump Controller - L. Meek
69 - PIC16F627-Based Access Controller: Wiegand-to-RS-232 Converter - C. Bundy
74 - Put ZigBee to Work - F. Eady
Aug. 2005
10 - Flight Computer for High-Power Rocketry - S. Pope
18 - Real-Time Pulse Generator - T. Napier
24 - Build a Hardware Accelerator - A. Darvishi et al.
30 - Strong Encryption for PICs (Part 1): Triple-DES Algorithm - R. Costanzo
38 - Hardware Synthesis Using VHDL (Part 1): VHDL Implementation - M. Griebling
46 - Simulate First: Simulation Techniques for Testing New MCUs - J. Bachiochi
59 - PSoC Pulse Generator - B. Millier
68 - Reach for Interface Control: Add a GUI to a ZF8042A-Based Design - F. Eady
75 - Analog Tips and Tricks - E. Nisley
Sep. 2005
12 - Signal Generation Solution: Build an Inexpensive RF Signal Generator - N. Martini
22 - Digital Decoding Simplified: Sequential Exact-Frequency Goertzel
Algorithm - E. Kiser
32 - High-Performance Square Wave Source - G. Dick
38 - Strong Encryption for PICs (Part 2): Prototype Application - R. Costanzo
48 - Hardware Synthesis with VHDL (Part 2): VHDL in Action - M. Griebling
58 - Replacing a Legend: Building a Functional Equivalent to the CDP1861 - B. Armstrong
66 - Inexpensive In-Circuit Debugging - D. Malik
70 - Throwing Ethernet Frames - F. Eady
76 - Capacitive Sensing Technology - J. Bachiochi
[ home ]
Last updated or checked: May 3, 1996
S. Baum
Dept. of Oceanography
Texas A&M University
baum@astra.tamu.edu