Forrest M. Mims III

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Getting Started in Electronics has sold more copies than any other book about electronics. The book was written for Radio Shack, where it sold more than 1,300,000 copies. "Getting Started in Electronics" and the Forrest Mims Mini-Notebook series are now published by Master Publishing and can be ordered from the Master Publishing site at www.forrestmims.com.

The Citizen Scientist (www.sas.org) carries my columns about many aspects of science.
NEWEST BOOK

Fifty Years of Monitoring a Changing Atmosphere: The Story of Hawaii's Mauna Loa Observatory. This 250,000-word book was written on assignment from the US National Oceanic and Atmospheric Administration (NOAA). The book is presently in a second round of reviews by a 25-member panel of scientists and former staff of the Mauna Loa Observatory. The expected publication date is 2009. See Home Page fopr more information. 

INTRODUCING "THE COUNTRY SCIENTIST"

My weekly science column in the San Antonio Express-News is called "The Country Scientist." These columns will eventually be supported by a new web site. For now, supplemental information for some columns may be appended to the column listing  below. (Please scroll down to the end of this page for the most recent installment.)  

RECENT SCHOLARLY PUBLICATIONS

David R. Brooks, Forrest M. Mims III, and Richard Roettger, Inexpensive Near-IR Sun Photometer for Measuring Total Column Water, Journal of Atmospheric and Oceanic Technology 24, 1268–1276, July 2007.

Sarah A. Mims and Forrest M. Mims III, Fungal spores are transported long distances in smoke from biomass fires, Atmospheric Environment 38, 651-655, 2004.

Forrest M. Mims III, Avian influenza and UV-B blocked by biomass smoke (letter), Environmental Health Perspectives 113, A806-7, 2005.

PUBLICATIONS

A list of most print publications follows. Thanks to my wife Minnie for adding some 365 citations to my weekly newspaper science columns since 1999 and hundreds of magazine article citations. This list will be eventually expanded to include all web publications.
 

1. SELECTED SCIENTIFIC AND TECHNICAL PUBLICATIONS

F. M. Mims III and R. Lopina, Ram Air as a Method of Rocket Control, Proceedings of the AIAA Guidance, Control and Flight Mechanics Conference, paper 70-970, August 1970.
F. M. Mims III, Relaxation Oscillators Provide Compact Drive for Injection Lasers, Electronics, 88-90, July 19, 1971.

F. M. Mims III, Eyeglass Mobility Aids for the Blind: Preliminary Report, Journal of the American Optometric Association, 43, 6, 673-676, 1972. (Invited paper.)

F. M. Mims III, An Infrared Eyeglass Mobility Aid for the Blind, Southwest IEEE Record, April 1972.

F. M. Mims III, Use LEDs, not Lasers, in Rangefinders, Electronic Design, 48-50. May 1972.

F. M. Mims III, An Active Infrared Mobility Aid for the Blind, Proceedings of the Electro-Optical Systems Design Conference, 14-18, June 1972.

F. M. Mims III, Operate Transistors in Avalanche Mode for Fast Pulses with High Current, Microwaves, 73, February 1973.

F. M. Mims III, Sensory Aids for Blind Persons, New Outlook for the Blind, 407-414, November 1973. (Invited general review paper.)

F. M. Mims III, Energy Radiating Mobility Aids for the Blind: Design Considerations and a Progress Report on an Eyeglass Mounted Infrared Aid, American Foundation for the Blind Research Bulletin, 27, 135-156, April 1974. (Invited paper.)

F. M. Mims III, LEDs Replace CRT in Solid-State Scope, Electronics, 110-111, June 26, 1975.

F. M. Mims III, Bidirectional Optoisolator, Electronics, 127, May 10, 1979.

F. M. Mims III, Optoelectronic Alarm Circuit is Time-Sensitive, Electronics, July 5, 1979.

F. M. Mims III, A Bright Future for Fiber Optic Communication, IEEE Potentials, 18-21, February 1984. (Invited general review paper.)

F. M. Mims III, The First Century of Lightwave Communications, International Fiber-Optic Communications, 10-26, February 1982. (Invited historical review paper.)

F. M. Mims III, Sunspots and How to Observe Them Safely, Scientific American, 262, 6, 130-133, June 1990,

F. M. Mims III, How to Monitor Ultraviolet Radiation from the Sun, Scientific American, 263, 2, 106-109, August 1990.

F. M. Mims III, A Remote-Control Camera that Catches the Wind and Captures the Landscape, Scientific American, 263, 2, 126-129, October 1990.

F. M. Mims III, Sun Photometer with Light-Emitting Diodes as Spectrally Selective Detectors, Applied Optics, 31, 33, 6965-6967, 1992.

F. M. Mims III, and E. R. Mims Fluctuations in Column Ozone During the Total Solar Eclipse of July 11, 1991, Geophysical Research Letters, 20, 5, 367-370, 1993. (Also a poster paper at the Quadrennial Ozone Symposium, University of Virginia, June 1992.)

F. M. Mims III, Satellite Monitoring Error, Nature, 361, 505, 1993.

F. M. Mims III, Project Halo: The Annular Solar Eclipse of 1994, EOS, Transactions of the American Geophysical Union, 74, 18, 1, 1993.

F. M. Mims III, Project Halo: Measuring the 1994 Annular Solar Eclipse, Sky & Telescope, 102-104, January 1994.

F. M. Mims III, Exceptionally Low Ozone and High Solar UV Radiation at Texas, Proceedings of the Second Pan Pacific Cooperative Symposium on Impact of Increased UV-B Exposure on Human Health and Ecosystem, Kitakyushu, Japan, October 1993. (Invited paper.) (Also presented in part in both oral and poster papers at the Gordon Conference on the Impact of Volcanism on Global Climate, New England College, New Hampshire, 1993.)

F. M. Mims III, Measuring the Radiation at the Top of the Earth's Atmosphere, Science Probe 1, 2, 93-100, April 1991.

F. M. Mims III, Tracking the Ozone Layer, Science Probe 2, 4, 32-41, November 1992.

F. M. Mims III, How to Measure the Ozone Layer, Science Probe 2, 4, 45-51, November 1992.

F. M. Mims III, Surveying Your Environment, Science Probe 2, 4, 3, November 1992.

F. M. Mims III, In Defense of Radioactive Journals, Nature 359, 784, 1992.

F. M. Mims III, The Sun Photometer Atmospheric Network (SPAN): Observations of Record Low Ozone and Other Results of a 4-Year Pilot Study, Proceedings of the UV Index Meeting, Environmental Protection Agency, Washington, DC, November 1993. (Invited paper.)

F. M. Mims III, and John E. Frederick, Cumulus Clouds and UV-B, Nature 371, 291, 1994.

F. M. Mims III, Project Halo Update, Sky & Telescope, December 1994.

F. M. Mims III, Beware the glare of black light, New Scientist, 144, 1957/1958, 71-72, 1994.

F. M. Mims III, J. Ladd and R. Blaha, Increased Solar Ultraviolet-B Associated with Record Low Ozone Over Texas, Geophysical Research Letters 22, 227-230, 1995.

F. M. Mims III, William F. Barnard, Arthur C. Neuendorffer and Gordon J. Labow, Unusually Low Ozone Detected Over South-Central U.S. EOS 76, 113-115 (1995).

F. M. Mims III, Aerosol Optical Depth, Ultraviolet-B and Total Sky Irradiance during SCAR-B (Brazil), final report for NASA purchase order No. S-59036-Z, 1995.

F. M. Mims III, Smoke and Rainforests, Science 270, 5243, 1995.

F. M. Mims III, UV Radiation and Field Experiments, BioScience 46, 564-565, 1996.

F. M. Mims III, Biological Effects of Diminished UV and Visible Sunlight Caused by Severe Air Pollution, Proceedings of the International Radiation Symposium, Session 8, Fairbanks, Alaska, 19-24 August 1996, 905-908.

F. M. Mims III, Significant Reduction in UV-B Caused by Smoke from Biomass Burning in Brazil, Photochemistry and Photobiology, 64, 123-125, 1996.

F. M. Mims III, The Science that Happens through Partnerships, Proceedings of the Student-Scientist Partnership Conference, Washington, DC, 23-25 October, 1996.

F. M. Mims III, Aerosol Optical Thickness, Total Ozone, UV-B, Diffuse/Total Solar Irradiance and Sky Polarization Through Forest Fire Smoke and Stratospheric Aerosols During TOMS Overpasses, final report for NASA purchase order No. S-78417-Z, 1996.

F. M. Mims III, Hands-On Activities: The Better Approach to Teaching Biology, Journal of College Science Teaching 26, 377, 1997 (letter).

F. M. Mims III, and D. J. Travis, Aircraft Contrails Reduce Solar Irradiance, EOS 78, 448-449, 1997.

F. M. Mims III, B. N. Holben, T. F. Eck, B. C. Montgomery and W. B. Grant, Smoky Skies, Mosquitoes, and Disease, Science 276, 1774-1775, 1997.

F. M. Mims III, and Bradley S. White, Scientific Studies During the 1997 Burning Season at Alta Floresta, Brazil, final report for NASA purchase order S-97728-Z, 1997.

F. M. Mims III, Health effects of tropical smoke, Nature 390, 222-223, 1997.

F. M. Mims III, Solar corona caused by juniper pollen in Texas, Applied Optics 37, 1486-1488, 20 March 1998.

Brooks, David R., Forrest M. Mims III, Tran Nguyen, and Stephen Bannasch: Characterization of LED-based sun photometers for use as GLOBE instruments. Third Annual GLOBE Conference, Snowmass, Colorado, August 3-7, 1998.

F. M. Mims III, Ups and Downs of UV-B, BioScience 48, 646-648, August 1998 (invited book review).

F. M. Mims III, An Inexpensive and Accurate Student Sun Photometer with Light-Emitting Diodes as Spectrally Selective Detectors, Proceedings of the Third Annual GLOBE Conference, 232-239, August 1998.

F. M. Mims III, and David R. Brooks, Sampling strategies for the GLOBE Sun photometer network, Proceedings of the Fourth Annual GLOBE Conference, University of New Hampshire, July 1999 (www.globe.gov).

Brooks, David R., and Forrest M. Mims III: Calibration and Data Collection With the GLOBE Sun Photometer. Fourth Annual GLOBE Conference, University of New Hampshire, Durham, New Hampshire, USA, July 19-23, 1999.

Brooks, David R., Forrest M. Mims III, George Strachan, Susannah Kim, Jean Yeung, Brent Holben, Alexander Smirnov: Calibrating the GLOBE Sun Photometer. AGU Spring Meeting, Boston, Massachusetts, May 31-June 4, 1999.

F. M. Mims III, Amateur Science--Strong Tradition, Bright Future, Science 284, 55-56, 1999.

F. M. Mims III, An International Haze-Monitoring Network for Students, Bulletin of the American Meteorological Society 80, 1421-1431, 1999 (cover article).

F. M. Mims III, Solar Radiometer with Light-Emitting Diodes as Spectrally-Selective Detectors, Optics and Photonics News 11, 3-4, 2000.

David R. Brooks and Forrest M. Mims III, Development of an inexpensive handheld LED-based Sun photometer for the GLOBE program, J. Geophysical Research 106, 4733-4740, 2001.

Marian Morys, Forrest M. Mims III, Scott Hagerup, Stanley Anderson, Aaron Baker, Jesse Kia and Travis Walkup, Design, calibration and performance of MICROTOPS II handheld ozone monitor and Sun photometer, J. of Geophysical Research 106, 14,573-14,582, 2001.

F. M. Mims III, Solar UV-B measured at the surface and inferred by satellite at a rural Texas site, 1994-2001, Proc. SPIE, Ultraviolet Ground- and Space-based Measurements, Models and Effects 4482, 177-186, 2001.

F. M. Mims III, Spectral Absorption and Response: Does the association of spectral absorption bands in sunlight with the spectral response of photoreceptors in plants imply coincidence, adaptation or design?, Progress in Complexity, Information and Design, 1, Winter 2002.

F. M. Mims III, An inexpensive and stable LED Sun photometer for measuring the water vapor column over South Texas from 1990 to 2001, Geophysical Research Letters 29, 20-1 to 20-4, 2002.

Forrest M. Mims III and David Brooks, Validation of remote-sensing satellites using inexpensive, ground-based instruments (GLOBE Annual Meeting, July 2002).

Brooks, David R., and Mims, Forrest M. III: The GLOBE Aerosol Monitoring Project: Where Are We Now and Where Do We Go From Here? GLOBE Seventh Annual Meeting, July 22-26, 2002.

Brooks, David R., Forrest M. Mims III, Arlene S. Levine, Dwayne Hinton, The GLOBE/GIFTS Water Vapor Monitoring Project:An Educator's Guide with Activities in Earth Sciences. NASA Publication EG-2003-12-06-LARC, 2003.

F. M. Mims III, Five years of photosynthetic radiation measurements using a new kind of LED sensor, Photochemistry and Photobiology 77,30-33, 2003.

F. M. Mims III, Solar aureoles caused by dust, smoke and haze, Applied Optics 42, 492-496, 2003.

F.M. Mims III and Brooks, David R.: A 2-Year Comparison of Aerosol Optical Thickness Measurements by the GLOBE Sun Photometer and the Terra and Aqua Satellites. 8th Annual Meeting, Boulder Colorado, July 25-30, 2004.

Sarah A. Mims and Forrest M. Mims III, Fungal spores are transported long distances in smoke from biomass fires, Atmospheric Environment 38, 651-655, 2004.

Forrest M. Mims III, Avian influenza and UV-B blocked by biomass smoke (letter), Environmental Health Perspectives 113, A806-7, 2005.

David R. Brooks, Forrest M. Mims III and Richard Roettger, Inexpensive Near-IR Sun Photometer for Measuring Total Column Water Vapor, Journal of Atmospheric and Oceanic Technology 24, 1268-1276, July 2007. http://ams.allenpress.com/perlserv/?request=get-abstract&doi

F. M. Mims III, Significant changes in the ratio of pigmented to non-pigmented airborne bacteria associated with suppressed UV-B during smoke events in Brazil (in preparation; to be submitted to Photochemistry and Photobiology).

F. M. Mims III, Tannin distribution in conifer branches in Hawaii and Texas is a UV-B dosimeter (still in preparation).

F. M. Mims III, UV-A and green spectral response of larvae and adult Culex pipiens and Aedes aegypti mosquitoes (still in preparation).

Forrest M. Mims III, Donald Pfister and John Barnes, Aeolian transport of Chorioactis geaster from Japan to Texas (still in preparation).

2. BOOKS

More than 65 books (including booklets and manuals), some in various editions and in two or more languages and with total sales exceeding 7,500,000 copies.

1. Model Rocket Telemetry (MITS, 1969).

2. Semiconductor Diode Lasers (with Ralph Campbell, Sams, 1972).

3. Light Emitting Diodes (Sams, 1973).

4. Led Circuits and Projects (Sams, 1973).

5. Electronic Calculators (with H. Edward Roberts, Sams, 1974).

6. Optoelectronics (Sams, 1975).

7. 816 Calculator Assembly Manual (MITS, 1970).

8. Altair 8800 Operator's Manual (MITS, 1975).

9. Introduction to Electronics (Radio Shack, 1972).

10. Introduction to Transistors (Radio Shack 1972).

11. Transistor Projects, Volume 1 (Radio Shack, 1973).

12. Transistor Projects, Volume 2 (Radio Shack, 1974).

13. Transistor Projects, Volume 3 (Radio Shack, 1975).

14. Transistor Projects, Volume 4 (Radio Shack, 1976).

15. Integrated Circuit Projects, Volume 1 (Radio Shack, 1973).

16. Integrated Circuit Projects, Volume 2 (Radio Shack, 1974).

17. Integrated Circuit Projects, Volume 3 (Radio Shack, 1975).

18. Integrated Circuit Projects, Volume 4 (Radio Shack, 1975).

19. Integrated Circuit Projects, Volume 5 (Radio Shack, 1976).

20. Integrated Circuit Projects, Volume 6 (Radio Shack, 1977).

21. Electronics Music Projects (Radio Shack, 1977).

22. Computer Circuits for Experimenters (Radio Shack, 1974).

23. Semiconductor Projects, Volume 1 (Radio Shack, 1975).

24. Semiconductor Projects, Volume 2 (Radio Shack, 1976).

25. Security for Your Home (Radio Shack, 1974).

26. Optoelectronic Projects (Radio Shack, 1975).

27. How to Protect Your CB Rig (Sams, 1976).

28. Electronic Circuitbook 1, Project Construction (Sams, 1976).

29. Electronic Circuitbook 5, LED Projects (Sams, 1976).

30. Home Computers (Consumer Guide, 1978).

31. Number Machines (David McKay, 1977).

32. Lasers, the Incredible Light Machines (David McKay, 1977).

33. Radio Shack Introduces the World of Computing (Radio Shack, 1977).

34. What to Look for Before You Buy an Advanced Calculator (Hewlett-Packard, 1976).

35. The Programming Book (Hewlett-Packard, 1976).

36. The Beginner's Handbook of Electronics (with George Olsen, Prentice-Hall, 980).

37. Light-beam Communications (Sams, 1975).

38. A Practical Introduction to Lightwave Communications (IEEE & Sams, 1982).

39. 103 Projects for Electronics Experimenters (Tab, 1981).

40. Understanding Digital Computers (Radio Shack, 1979).

41. Engineer's Notebook 1 (Radio Shack, 1979).

42. Engineer's Notebook 2 (Radio Shack, 1982).

43. The Forrest Mims Circuit Scrapbook (McGraw-Hill, 1983).

44. Beginner's Guide to Personal Computers (Radio Shack, 1981).

45. Getting Started in Electronics (Radio Shack, 1983).

46. Reference Data for Radio Engineers (Major Contributor, ITT Publishing, 1975).

47. The New American Academic Encyclopedia (Major Contributor, Arete, 1979).

48. Law and the Writer (Contributor, Writer's Digest Books, 1978).

49. Siliconnections (McGraw-Hill, 1985).

50. The Computer Scientist (Osborne/McGraw-hill, 1985).

51. Engineers's Mini-notebook: 555 Timer IC Projects (Siliconcepts, 1984).

52. Engineer's Mini-notebook: Op-amps (Radio Shack 1985).

53. Engineer's Mini-notebook: Optoelectronics (Radio Shack 1985).

54. Engineer's Mini-notebook: Basic Semiconductor Circuits (Radio Shack 1986).

55. Engineer's Mini-notebook: Digital Logic Circuits (Radio Shack 1985).

56. Engineer's Mini-notebook: Formulas, Tables & Basic Circuits (Radio Shack 1988).

57. Engineer's Mini-notebook: Schematic Symbols, Design and Testing (Radio Shack 1988).

58. Engineer's Mini-notebook: Communication Projects (Radio Shack 1985).

59. Engineer's Mini-notebook: Science Projects (Radio Shack 1990).

60. Engineer's Mini-notebook: Environmental Projects (Radio Shack 1995).

61. VHS-1 Sun Photometer (TERC, 1996 and National Science Teachers Association, 1996).

62. Engineer's Mini-notebook: Sensor Projects (Radio Shack 1996).

63. Engineer's Mini-notebook: Magnets and Magnetic Sensor Projects (Radio Shack 1998).

64. Engineer's Mini-notebook: Solar Cell Projects (Radio Shack, 1999).

65. Electronics Learning Lab, Workbook 1, RadioShack, 2000.

66. Electronics Learning Lab, Workbook 2, RadioShack, 2000

67. Electronic Sensors Lab, RadioShack 2001.

68. Sun and Sky Monitoring Station, RadioShack 2003.

3. ENCYCLOPEDIA

More than 100 articles for The New American Academic Encyclopedia, originally published in print and later by Grolier as the first CD-ROM encyclopedia.

4. PERIODICALS (in which 1,000+ articles, columns, peer-reviewed papers, editorials or letters have been published)

Nature
The Wall Street Journal
Science
The New Yorker
Scientific American
Writer's Yearbook
National Geographic World
Popular Photography
Modern Photography
Laser Focus
Physics Today
American Journal of Physics
Journal of Molecular Evolution
The Scientist
Fortune
Skeptical Inquirer
Harper's
EOS
Philadelphia Inquirer
World
Highlights for Children
Red Cross Youth Journal
Popular Mechanics
American Journal of Nursing
Highlights for the Blind
Laser Focus
Popular Electronics
Popular Computing
Radio-Electronics
Modern Electronics
IEEE Spectrum
Science Digest
Science Probe!
Electronics
Event
Church Recreation
Bicycling
Air Force Magazine
American Girl
Creative Computing
Computers & Electronics
Electronic Design
Electronics Hobbyist
Ham Radio
Electronic Design
Elementary Electronics
IEEE Potentials
Laser Topics
Computercraft
Microwaves
Electronic Engineering Times
Kids!
Model Rocketry
Saga
Texas Parks & Wildlife
Infoworld
Century Two
PC Magazine
Science 85
Optics News
EDN
Lasers & Applications
Byte
Laser Focus/Electro-Optics
Lasers & Optronics
Photonics Spectra
New Outlook for the Blind
Engineering Design
Weekly Air Intelligence Summary
Philadelphia Inquirer
Electronic Experimenter's Handbook
Seguin Gazette-Enterprise
New Scientist
Geophysical Research Letters
Journal of the American Optometric Society
International Fiber-optic Communications
Research Bulletin of the American Foundation for the Blind
Journal of Photochemistry and Photobiology
Quantum
Bulletin of the American Meteorological Society
Sky & Telescope
San Antonio Express-News

5. THE CITIZEN SCIENTIST

A linked list of all my editorials, columns, features, projects and news stories in The Citizen Scientist will eventually be added. To find articles now, please go to www.sas.org and enter "Mims" in the search window.

6. OTHER PUBLISHED WORKS

Brochures, newspaper articles, newspaper science columns, letters in many magazines and newspapers, various scholarly papers in conference proceedings, more than 600 published photographs and numerous Internet and WWW articles and photographs. Most of these will eventually be listed on this page.

7. MAGAZINE ARTICLES

Magazines are listed in alphabetical order. Many of the project articles were reprinted in books.

1. AIR FORCE MAGAZINE

1.1 "The Evolution of Revolutionary Laser Weapons," June 1972, 54-58.

1.2. "USAF Sensors Help Build a Better World," April 1973, 49-53.

1.3. "Toward New Horizons in USAF Weapons," July 1973, 74-78.

2. AMERICAN

2.1. "Bikers’ Baedeker," June 1976, 12-13.

3. AMERICAN JOURNAL OF NURSING

3.1. "Medical Benefits from Space Research," For the Southwest Research Institute.

4. BICYCLING

4.1. "Build a Portable Shower," June 1976, 47-48.

5. CHURCH RECREATION MAGAZINE

5.1. "Two-Wheel Recreation," April-May-June 1977, 40-41.

6. CREATIVE COMPUTING

6.1. The COMPUTER SCIENTIST Column

6.1.1. "Computerized Security Alarms," June 1985, 58-63.

6.1.2. "Personal Computers for the Disabled," August 1985, 78-81.

6.2. FEATURE ARTICLES

6.2.1.1. "The Altair Story," November 1984, 17-27.

7. COMPUTERS & ELECTRONICS

7.1. The COMPUTER SCIENTIST Column

7.1.1. "Learning to Use an X-Y Plotter," March 1984, 36-38, 92.

7.1.2. "Experimenting with Coleco’s ADAM," April 1984, 22,26,32,34.

7.1.3. "Experimenting with Computer Art," May 1984, 26-27, 32-33.

7.1.4. "Computer Aided Drafting," June 1984, 14, 20-21, 24, 105.

7.1.5. "More one Computer Aided Drafting," July 1984, 74-77. 97/

7.1.6. "Computer Controlled Light Meter," August 1984, 18-22, 76-77.

7.1.7. "Analog Computer Techniques for Digital Computers," September 1984, 24-31, 113-114.

7.1.8. "Analog Computer Techniques for Digital Computers: Part II," October 1984, 16-20, 22.

7.1.9. "Random Numbers," November 1984, 18-20, 24-28, 105.

7.1.10. "Optoelectronic Digitizer," December 1984, 22-28.

7.1.11. "Computer Art," January 1985, 10-12, 84-85.

7.1.12. "Psychological Testing," February 1985, 22-24, 84-86.

7.1.13. "Creative Text Formatting with an XY-Plotter," March 1985. 13-15. 89.

7.2. ELECTRONICS SCIENTIST Column

7.2.1. "Use of Ultrasonic Sound," June 1983, 84-87.

7.2.2. "Experimenting with the Rangefinder," June 1983, 87-90.

7.2.3. "LM3905 Ap Note," June 1983, 90.

7.2.4. "The Move to Lower Supply Voltages," June l983, 90-91.

7.2.5. "Device Developments," June l983, 91-92.

7.2.6. "A Solid-State Heat Pump," July 1983, 86, 88-90.

7.2.7. "An Easy-To-Use Universal Active Filter," July 1983, 90-95.

7.2.8. "Flat-Panel Displays Will Revolutionize Information Processing," August 1983, 96-98.

7.2.9. "An Easily Adjusted Switched-Capacitor 60-Hz Hum Filter," August 1983, 100.

7.2.10. "More About Radiation Monitors," September 1983, 90-94.

7.2.11. "Visible-Light Laser Diodes," October 1983, 99-102.

7.2.12. "More About Ultrasonics," October 1983, 102-103.

7.2.13. "A New Non-Volatile RAM," October 1983, 103-104.

7.2.14. "Adding an Output Interface to a Clock Module," October 1983, 104-106.

7.2.15. "Optical Data Communications," November 1983, 90-93.

7.2.16. "An Experimental Infrared Joystick Interface," November 1983, 93-96.

7.2.17. "Simplified Model Railroad Crossing Light," November 1983, 96-98.

7.2.18. "A New Class of Semiconductors," November l983, 98-100.

7.2.19. " Device Developments," November l983, 100-101.

7.2.20. "The 80C86 CMOS Microprocessor," December 1983, 86-89.

7.2.21. "A Piezoelectric Speaker Siren," December l983, 89-93.

7.2.22. "Rediscovering the Transistor," January l984, 96-99.

7.2.23. "Low-Cost Radio Control," January 1984, 99-102.

7.2.24. "Adding an Output Interface to a Digital Timer," January l984, 102-103.

7.2.25. "A New Fiber-Optic Breakthrough," January 1984, 103.

7.2.26. "Device Developments," January 1984, 103.

7.2.27. "Analog Sensors for Personal Computers;," February 1984, 82-86.

7.3. EXPERIMENTER’S CORNER Column

7.3.1. "Experimenting with Kodak’s Disk Camera – Part I: Modifying the Camera for Electronic Triggering," November 1982, 111-115.

7.3.2. "Experimenting with Kodak’s Disk Camera – Part II: Controlling the Camera Remotely," December 1982, 116-120.

7.3.3. "Experimenting with Kodak’s Disk Camera – Part III: Radio Control and Aerial Photography," January 1983, 28, 33, 104-107.

7.3.4. "Experimenting With a Low-Cost Fiber-Optic Link," February 1983, 113-117.

7.3.5. "Experimenting with VMOS Power Transistors," March 1983, 111-113.

7.3.6. "Solderless Breadboards for Experimenters," April 1983, 104-106.

7.3.7. "Experimenting with Electronic Flash Circuits," May 1983, 90-92.

7.4. FEATURE ARTICLES

7.4.1. "Use Your TRS-80 Color Computer as a Storage Oscilloscope," February 1984, 64-66, 98-101.

7.4.2. "Quick on the Draw: Inexpensive Plotters," March 1984, 50-53, 104-105.

7.4.3. "A Few Quick Pointers," May 1984, 64-69, 114-117.

7.4.4. "What Makes Junior Run: A review of the IBM PCjr with a particular look at the electronics of its keyboard," June 1984, 54-59, 98-100.

7.4.5. "HP-110 Computer and Thinkjet Printer," August 1984, 36-38, 90.

7.4.6. "Do-It-Yourself Computer –Simulate Instruments," August 1984, 77.

7.4.7. "The Tenth Anniversary of the Altair 8800: Setting the Record Straight," January l985, 58-60, 81-82.

7.4.8. "The Tenth Anniversary of the Altair 8800: A Conversation between Ed Roberts and Forrest Mims III.," January 1985, 61-62, 82.

7.5. PROJECT OF THE MONTH Column

7.5.1. "Making Your Own Pressure-Sensitive Resistors," November l982, 124.

7.5.2. "A 000-to-999 Event Counter," December 1982, 124.

7.5.3. "A Multifunction VMOS Oscillator," January 1983, 113.

7.5.4. "A Photonic Door and Window Intrusion Alarm," February l983, 114.

7.5.5. "Adjustable Threshold Temperature and Light Alarms," April 1983, 109.

7.5.6. "Constructing A Two-Way Optoisolator," May 1983, 96.

7.6. SOLID-STATE DEVELOPMENTS Column

7.6.1. "A Universal Active Filter Breakthrough," November 1982, 104-107.

7.6.2. "New Developments in Fiber Optics," December 1982, 110-113.

7.6.3. "Keeping Up With the New Microprocessors," January 1983, 82-83.

7.6.4. "Flash Analog/Digital Converts Come of Age," February 1983, 110-112.

7.6.5. "New Peripheral Transforms Apple II into A Computerized Oscilloscope," March 1983, 103-105.

7.6.6. "Personal Radiation Detectors," April 1983, 101-102.

7.6.7. "Introducing the Varistor," May 1983, 88-89.

8. ELECTRO-OPTICAL SYSTEMS DESIGN

8.1. "Measuring LED Power Distribution," June 1976, 40-41.

9. ELECTRONIC DESIGN

9.1. "Use LEDs, Not Lasers, In Rangefinders," May 25, 1972, 48-50.

9.2. "Which LED is Best," September 14, 1972, 120-124.

10. ELECTRONIC EXPERIMENTER’S HANDBOOK

10.1. "Solid-State Laser for the Experimenter," Spring 1973, 150-154.

11. ELECTRONICS

11.1. "Relaxation Oscillators Provided Compact Drive for Injection Lasers," July 19, 1971, 88-90.

11.2. "LEDs Replace CRT in Solid-State Scope," June 26, 1975, 110-111.

11.3. "Bidirectional Optoisolator Puts Two LEDs Nose to Nose," May 24, 1979, 127.

11.4. "LED dot/bar Driver Simplifies Solid-State Scope," May 24, 1979, 169.

11.5. "Optoelectronic Alarm Circuit Is Time-Sensitive," July 5, 1979, 133.

12. ELECTRONICS HOBBYIST

12.1. "Light-Comm," Fall-Winter 1972, 27-31.

13. ELEMENTARY ELECTRONICS

13.1. "Light-Comm—All Solid State Light Beam Communicator Uses Infrared Light Emitting Diode," May-June 1972, 29-32.

14. EVENT

14.1. "Take A Trip: Biking One Thousand Miles for Christ," July 1975, 28-37.

15. HAM RADIO

15.1. "High Power Injection Lasers," September 1971, 28-33.

16. HIGHLIGHTS FOR CHILDREN

16.1 "Electronics Helps the Blind to See," February 1973, 18.

17. IEEE POTENTIALS

17.1. "A Bright Future for Fiber Optic Communications," February 1984, 18-21.

18. INTERNATIONAL FIBER-OPTIC COMMUNICATIONS IFOC

18.1. "The First Century of Lightwave Communications," February 1982,10-26.

18.2. "The First Century of Lightwave Communications: Part I," June 1986, 24-29.

18.3. "The First Century of Lightwave Communications: Part II," September 1986, 23-27.

19. LASER FOCUS

19.1. "Hilltop Facility in New Mexico Testing the Air Force’s Highest Energy Lasers," January 1971, 14.

19.2. "Test-Ground Layout Suggest ‘8th Card’ is Developing an Airborne Laser System’, April 1971, 13-15.

19.3. "Air Force Begins Regular Test-Firing of a Prototype Antiaircraft Laser," January 1972, 12-14.

19.4. "Elaborate Test Equipment Supports Weapons Studies at Kirtland AFB," August 1972, 12-15.

19.5. "The Outlook in Communications," September 1974, 36, 38-41.

20. LASER TOPICS

20.1 "Laser Interception of Conversations in Closed Rooms," March 1986, 6-7.

21. MICROWAVES

21.1. "Operate Transistors in Avalanche Mode for Fast Pulses with High Current," MICROWAVE NOTEBOOK, February 1973, 73.

22. MODEL ROCKETRY

22.1. Feature Articles

22.1.1. "Transistorized Tracking Light for Night Launched Model Rockets," September 1969, 9-11.

22.1.2. "Fundamental Photo Interpretation," December 1969, 32-33.

22.1.3. "Model Rocketry in Vietnam," January 1970, 23-25.

22.1.4. "Ram-Air as a Method of Rocket Control," February 1970, 28-32.

22.1.5. "Shape and Flow Book Review," February 1970, 36.

22.1.6. "Ram Air Control: Part II," March 1970, 11-13.

2.2. THE EXPERIMENTER’S NOTEBOOK Column

22.2.1. "Optical Telemetry," May 1970, 35-39.

22.2.2. "An $11 Wind Tunnel Design," July 1970, 13-15.

22.2.3. "Capacitor Discharge," November 1970, 112-13.

23. MODERN ELECTRONICS

23.1. Feature Articles

23.1.1. "How to Get Started in Electronics – Part I: Inside Semiconductors," October 1984, 44-52.

23.1.2. "How to Get Started in Electronics – Part II: Inside Integrated Circuits," December 1984, 58-62.

23.1.3. "SmartBASIC Color Graphics," January 1985, 54-56, 86-87.

23.1.4. "The Laser At Twenty-Five," December 1985, 18-29.

23.1.5. "Surface-Mount Technology," January 1987, 18-29.

23.1.6. "Surface-Mount-Device Circuits: A Design & Construction Guide," February 1987, 40-48.

23.1.7. "A Homebrew Analog Computer," December 1987, 39-41.

23.2. ELECTRONICS NOTEBOOK Column

23.2.1. "How Lightwaves Are Changing Communications," October 1984, 86-89.

23.2.2. "Fiber-Optic Sensors," November 1984, 71-75.

23.2.3. "A Cassette Recorder Analog Data Logger," December 1984, 72-77.

23.2.4. "Experimenting with a Touch-Tone DTMF Receiver ," January 1985, 62-67.

23.2.5. "Experimenting with the Analog Comparator," February 1985, 62-66, 96.

23.2.6. "A Universal Active Filter," March 1985, 70-75.

23.2.7. "Super-Bright LEDs," April 1985, 74-77.

23.2.8. "An Experimental Security Alarm," May 1985, 63-66.

23.2.9. "An Infrared Temperature Transmitter," June 1985, 68-71.

23.2.10. "A Multi-Function Two-Transistor Oscillator," July 1985, 62-67.

23.2.11. "Measuring the Flow of Air," August 1985, 66-69.

23.2.12. "Experimenting with Small dc Motors," September 1985, 69-73.

23.2.13. "Detecting Sound," October 1985, 58-61.

23.2.14. "Pressure-Sensitive Resistors," November 1985, 56-62.

23.2.15. "Experimenting with CW Laser Diodes – Part I: How-To Basics and a Laser Pulse Transmitter," December 1985, 54-61.

23.2.16. "Experimenting with CW Laser Diodes – Part II," January 1986, 68-73.

23.2.17. "Multi-Function Radio-Control System," February 1986, 72-28.

23.2.18. "How To Assemble Miniature Circuits," March 1986, 60-64.

23.2.19. "Audio Amplifier Experiments," April 1986. 66-71.

23.2.20. "How to See Near-Infrared Radiation," May 1986, 64-70.

23.2.21. "Understanding Feedback," June l986, 73-80.

23.2.22. "Relaxation Oscillators," July l986, 59-63.

23.2.23. "Experimenting With the Power MOSFET," August 1986, 64-70.

23.2.24. "Piezoelectric Buzzers," September 1986, 60-64.

23.2.25. "The Versatile NAND Gate," October 1986, 62-66.

23.2.26. "Custom Timer Circuits," November 1986, 72-79.

23.2.27. "Ultraminiature Radio Transmitters," December 1986, 60-65.

23.2.28. "Keychain Electronic Projects," March 1987, 68-75.

23.2.29. "Part-15 Low-Power Radio Transmitters," April 1987, 68-75.

23.2.30. "Unconventional Ultraminiature Circuits," May 1987, 70-77.

23.2.31. "Infrared Radiation," June 1987, 66-71.

23.2.32. "Experimenting With Infrared Detectors," July 1987, 60-66.

23.2.33. "Magnetic Field Sensors," August 1987, 59-65.

23.2.34. "Experimenting With Hall-Effect Devices September 1987, 72-77.

23.2.35. "Amateur Electronics Research," October 1987, 76-83.

23.2.36. "Laser Eavesdropping," November 1987, 74-79.

23.2.37. "Experimenting With Shape-Memory Alloy Wire," December 1987, 70-75.

23.2.38. "Touch Tone Remote Control," January 1988, 60-66.

23.2.39. "Using LEDs as Detectors," February 1988, 62-68.

23.2.40. "Experimenting With a Superconductor," March 1988, 60-65.

23.2.41. "Experimenting With Liquid Nitrogen," April 1988, 62-69.

23.2.42. "A 16-Step programmable Digital Controller," May1988, 62-66.

23.2.43. "A 256-Step Programmable Controller," June 1988, 70-74.

23.2.44. "The Xenon Flash Tube," July 1988, 52-58, 78.

23.2.45. "Xenon Flash Tube Circuits," August 1988, 50-58.

23.2.46. "Experimenting With Photoresistors," September 1988, 62-71.

23.2.47. "A Computerized Chart Recorder," October 1988, 66-73.

23.2.48. "Learning From Failure," November 1988, 61-65.

23.2.49. "CMOS Micropower Op Amps and Comparators," December 1988, 58-63.

23.2.50. "A Speaker-Independent Speech-Recognition Chip," January 1989, 64-70.

23.2.51. "Experimenting With an Infrared Receiver Module," February 1989, 65-69.

23.2.52. "Experimenting With Super Capacitors," March 1989, 68-72.

23.2.53. "Getting Started In Virtual Instruments: A Storage Oscilloscope Computer Program," April 1989, 54-61.

23.2.54. "Experimenting With Thermistors," May 1989, 72-77.

23.2.55. "Do-It-Yourself Components," June 1989, 54-64.

23.2.56. "Experimenting With the Piezoelectric Effect," July 1989.

23.2.57. "More Piezoelectric Experiments," August 1989.

23.2.58. "Chart Recorders and Storage Oscilloscopes," September 1989.

24. NEW OUTLOOK FOR THE BLIND

24.1. "Sensory Aids for Blind Persons," November 1973, 407-414.

25. POPULAR ELECTRONICS

25.1. FEATURE ARTICLES

25.1.1. "Light Emitting Diodes," November 1970, 35-43.

25.1.2. "Assemble an LED Communicator—The Opticom," November 1970, 45-50. Co-Author: Henry E. Roberts.

25.1.3. "Understanding Solid-State Lasers," October 1971, 35-37, 42-45, 102.

25.1.4. "Solid-State Laser for the Experimenter," October 1971, 53-37, 42-45, 102.

25.1.5. "Build a Light Probe," March 1973, 42-43.

25.1.6. "Communicate Over Light Beams With the First Single-LED Transceiver," March 1974, 66-70.

25.1.7. "Model Rocketry for the Electronics Experimenter," June 1973, 26-30.

25.1.8. "Basic Digital Logic Course – Part I: Number Systems," October 1974, 56-57.

25.1.9. "Basic Digital Logic Course – Part II: Concepts and Circuits," November 1974, 57-58. Co-Author H. Edward Roberts.

25.1.10. "Experimenting With Light-Beam Communications," April 1975, 40-42.

25.1.11. "Build a Semiconductor Laser Communications Systems," July 1975, 39-44.

25.1.12. "Talk Over a Sunbeam With a ‘Photophone’ ," February 1976, 54-55, 60-61.

25.1.13. "Here Are The New Programmable Calculators!," May 1976, 29-35.

25.1.14. "LED Bargraph Readouts," September 1976, 74, 80-81.

25.1.15. "Microprocessor Microcourse: Part I," March 1978, 52-54.

25.1.16. "Microprocessor Microcourse: Part II," April 1978, 50-54.

25.1.17. "Microprocessor Microcourse: Part III," May 1978, 56-60.

25.1.18. "Microprocessor Microcourse: Part IV," June 1978, 48-51.

25.1.19. "Microprocessor Microcourse: Part V," July 1978, 67-71.

25.1.20. "PE Compares New Handheld Computers," July 1982, 38-48.

25.2. EXPERIMENTER’S CORNER Column

25.2.1. "A Programmable Timer/Counter," October 1975, 102-103.

25.2.2. "The Light-Activated SCR," November 1975, 109-110.

25.2.3. "Applications For Quad Op Amps," December 1975, 105-106.

25.2.4. "Using An Optoisolator," January 1976, 101-102, 105.

25.2.5. "TTL Sequence Generator," February 1976, 101-102.

25.2.6. "Percussion Instrument Synthesizer," March 1976, 100-102.

25.2.7. "Pulse Modulation & Phase-Locked Loops," May 1976, 101-102.

25.2.8. "Applications For the TTL NAND Gate," June 1976, 102-103.

25.2.9. "The Avalanche Transistor," July 1976, 104-105.

25.2.10. "The 567 Tone Decoder," August 1976, 91-93.

25.2.11. "The LM380 Power Amplifier," September 1976, 121-122.

25.2.12. "High-Voltage DC/DC Converters," October 1976, 107-108.

25.2.13. "The Silicon Solar Cell," November 1976, 110-111.

25.2.14. "The Neon Glow Lamp," December 1976, 111-112.

25.2.15. "The LM339 Quad Comparator," January 1977, 94-95.

25.2.16. "Flip-Flops and Decade Counters: Part I," February 1977, 75-76.

25.2.17. "Flip-Flops and Decade Counters: Part II," March 1977, 96-98.

25.2.18. "Active Filters," April 1977, 75-76.

25.2.19. "Using LEDS As Light Detectors," May 1977, 86-88.

25.2.20. "The Photoresistor," June 1977, 90-91.

25.2.21. "The S56 Dual Timer," July 1977, 82-83.

25.2.22. "The Four-Layer Diode," August 1977, 82-83.

25.2.23. "Laser Diodes," September 1977, 94-95.

25.2.24. "IC Voltage Regulators," October 1977, 88-89.

25.2.25. "Programmable Read-Only Memories," November 1977, 77-79.

25.2.26. "Read/Write Memories RAMs: Part I," December 1977, 90-91, 96.

25.2.27. "Read/Write Memories RAMs: Part II," January 1978, 67-68.

25.2.28. "The Schmitt Trigger," February 1978, 82-83.

25.2.29. "Three-State Logic," March 1978, 84-85.

25.2.30. "Getting Acquainted With CMOS," April 1978, 84-85.

25.2.31. "The Monostable Multivibrator," May 1978, 76-77.

25.2.32. "The Voltage Multiplier," June 1978, 98-99.

25.2.33. "Digital To Analog Converters: Part I," July 1978, 82-83.

25.2.34. "Digital To Analog Converters: Part II," August 1978, 76-77.

25.2.35. "Analog to Digital Converters: Part I," September 1978, 92-97.

25.2.36. "Analog to Digital Converters: Part II," October 1978, 82-85.

25.2.37. "The 74150 Multiplexer," November 1978, 112-116.

25.2.38. "The 74154 Demultiplexer," December 1978, 84-88.

25.2.39. "Analog Computer Circuits: Part I," January 1979, 81-84.

25.2.40. "Analog Computer Circuits: Part II," February 1979, 80-85.

25.2.41. " Eavesdropping On Light," March 1979, 80-81.

25.2.42. "The Analog Sample/Hold Circuit," April 1979, 76-77.

25.2.43. " The Analog Comparator" May 1979, 77-81.

25.2.44. "The Digital Comparator," June 1979, 81-84.

25.2.45. "LED Bargraph Display Chips," July 1979, 68-70.

25.2.46. "IC Interval Timers," August 1979, 60-62.

25.2.47. "Missing Pulse Detectors," September 1979, 89-91.

25.2.48. "Voltage-To-Frequency Converters," October 1979, 97-99.

25.2.49. "Frequency-To-Voltage Converters," November 1979, 93-96.

25.2.50. "Modifying Calculators," December 1979, 85-87.

25.2.51. "Solid-State Oscilloscope Wrap-Up," January 1980, 77-80.

25.2.52. "Do-It-Yourself Counters," February 1980, 98-100.

25.2.53. "Experimenting With Noise," March1980, 80-82.

25.2.54. "The Photophone Centennial: 1880-1980," April 1980, 74-76.

25.2.55. "Optical Fiber Communications: Part I," May 1980, 84-87.

25.2.56. "Optical Fiber Communications: Part II," June 1980, 76-78, 80.

25.2.57. "The Digital Phase-Locked Loop: Part I," July 1980, 79-82.

25.2.58. "The Digital Phase-Locked Loop: Part II," August 1980, 92-95.

25.2.59. "Experimenting With Shift Registers," October 1980, 86-89.

25.2.60. "More On Shift Registers," November 1980, 104-109.

25.2.61. "Experimenting With a Light Pen: Part I," December 1980, 80-82.

25.2.62. "Experimenting With a Light Pen: Part II," January 1981, 86-88, 92-93.

25.2.63. "CMOS Basics: The 4011 Quad NAND Gate," February 1981, 95-99.

25.2.64. "Programmable-Gain Amplifiers," March 1981, 93-96.

25.2.65. "Electronic Aids for the Handicapped," April 1981, 83-85.

25.2.66. "The Polapulse Water Battery," May 1981, 88-91.

25.2.67. "Do-It-Yourself Batteries," June 1981, 84-87.

25.2.68. "Remote Sensing: Part I," July 1981, 75-78.

25.2.69. "Remote Sensing: Part II," August 1981, 76-80.

25.2.70. "Experimenting With and Air Pressure Switch," September 1981, 90-95.

25.2.71. "Experimenting With High-Speed Logic," October 1981, 102-106.

25.2.72. "Experimenting With a Joystick – Part I: Basic Concepts and Applications," December 1981, 97-101.

25.2.73. "Experimenting With a Joystick – Part II: Some Typical Applications," December 1981, 97-101.

25.2.74. "A Programmable Function Generator," January 1982, 80-82.

25.2.75. "A Pulse-Frequency Modulated Infrared Communicator," February 1982, 98-101.

25.2.76. "How to Protect Profitable Ideas – Part I: Adventures of an Idea Peddler," March 1982, 103-105.

25.2.77. "How to Protect Profitable Ideas – Part II: Notebooks, Lawyers, and Patent Applications," April 1982, 100-103.

25.2.78. "Experimenting with Low-Power Integrated Circuits," May 1982, 98-100.

25.2.79. "A Single-Channel Infrared Remote-Control System," June 1982, 84-88.

25.2.80. "Experimenting with Piezoelectric Devices – Part I: Microphones, Pushbuttons, and Ceramic Filters," July 1982, 82-84.

25.2.81. "Experimenting with Piezoelectric Devices – Part II: Piezo-Alerters and Crystal Oscillators," August 1982, 80-83.

25.2.82. "A Single-Chip Analog Building Block," September 1982, 98-101.

25.2.83. "Experimenting With a Servomechanism," October 1982, 92-95.

25.3. PROJECT OF THE MONTH Column

25.3.1. "Back-and-Forth Sequential Flasher," September 1982, 98.

25.3.2. "Miniature DC-DC Upconverters," October 1978, 84.

25.3.3. "A Hexadecimal Keyboard Encoder," November 1978, 113.

25.3.4. "Adding RAM to a Hex Keypad Encoder," December 1978, 86.

25.3.5. "Phototransistor Receiver Module," January 1979, 82.

25.3.6. "LED Transmitter Module," February 1979, 82.

25.3.7. "A High-Resolution LED Display," March 1979, 94-95.

25.3.8. "Experimental Solid-State Oscilloscope," April 1979, 93-95.

25.3.9. "Miniature DC-DC Converter," May 1979, 93.

25.3.10. "Binary Hi-Lo Game," June 1979, 85.

25.3.11. "High-Current LED Pulser," July 1979, 90.

25.3.12. "A ‘Matchbox’ LED Oscilloscope," August 1979, 78.

5.3.13. "Tri-State LED Demonstrator," September 1979, 102.

25.3.14. "Universal Tri-State Tone Generator," October 1979, 113.

25.3.15. " CMOS Tone Sequencer," November 1979, 117.

25.3.16. "Pseudorandom Number Generator," December 1979, 98.

25.3.17. "Digital Stopwatch," January 1980, 93.

25.3.18. "Dark/Light Detector," February 1980, 99.

25.3.19. "Pocket Color Organ," March 1980, 92.

25.3.20. "More on Pseudorandom Number Generators," April 1980, 94.

25.3.21. "Light-Wave Voice Communicator," May 1980, 103.

25.3.22. "Digital Color Organ," July 1980, 93.

25.3.23. "General-Purpose Utility Amplifier," August 1980, 104.

25.3.24. "Hall-Effect Magnetic Sensor," October 1980, 96-97.

25.3.25. "Programmable Countdown Timer," November 1980, 120-121.

25.3.26. "An Op-Amp AM Radio," December 1980, 89.

25.3.27. "Ultra-Simple Power Flasher," January 1981, 99.

25.3.28. "A Simple Wind-Speed Indicator," February 1981, 109,

25.3.29. "Transistorized Light Flasher," March 1981, 100.

25.3.30. "A Liquid-Level Indicator for the Blind," April 1981, 96.

25.3.31. "Model-Railroad Crossing Light," May 1981, 96.

25.3.32. "Steam Engine and Whistle Sound Synthesizer," June 1981, 96.

25.3.33. "A Simple, Low Cost Timer," July 1981, 87.

25.3.34. "Simple BCD Keyboard Encoder," August 1981, 90.

25.3.35. "Precision CMOS Clock Generator," September 1981, 104.

25.3.36. "Audible Pulse Indicator," October 1981, 118.

25.3.37. "A Solid-State Panel Meter," November 1981, 100.

25.3.38. "A Light-Sensitive Tone Generator," December 1981, 106.

25.3.39. "A Sound-Effects Generator," January 1982, 90.

25.3.40. "Bomb-Burst Synthesizer," February 1982, 109.

25.3.41. "Power Pulse Generator," March 1982, 112.

25.3.42. "Event-Failure Alarm," April 1982, 107.

25.3.43. "A Dual-Polarity Five-Volt Power Supply," May 1982, 108.

25.3.44. "An Ultra-Simple VMOS Timer," June 1982.

25.3.45. "A Fully Adjustable Pulse Generator," July l982.

25.3.46. "A Tunable Notch Filter," August 1982, 90.

25.3.47. "Two 60-Hz Hum Filters," September 1982, 105.

25.3.48. "Controller for Small DC Motors," October 1982, 98.

2.4. SOLID STATE DEVELOPMENTS Column

25.4.1. "Do-It-Yourself Logic Chips," October 1980, 80-83.

25.4.2. "For Sale: Free Energy From the Sun," November 1980, 96-100.

25.4.3. "The Laser at Twenty," December 1980, 76-79.

25.4.4. "Wire-and-Glass Holdovers from the Pre-Solid-State Age," January 1981, 84-85.

25.4.5. "A New Super LED," February 1981, 92-94.

25.4.6. "Magnets, Bubbles and Garnets," March 1981, 88-91.

25.4.7. "Amber and Lodestones and Other Topics," April 1981, 86-88.

25.4.8. "Optoisolators – The Photon Connection," May 1981, 85-87.

25.4.9. "Jellybean Op Amps," June 1981, 78-81.

25.4.10. "A Potpourri of Developments," July 1981, 72-73.

25.4.11. "Solid-State Speech," August 1981, 67-74.

25.4.12. "The Billion Transistor Chip?," September 1981, 86-88.

25.4.13. "The Electrostatic Discharge Problem," October 1981, 99-101.

25.4.14. "The Flashlight-Battery Laser," November 1981, 83-85.

25.4.15. "Liquid Crystals," December 1981, 94-96.

25.4.16. "Bubble Memory Developments," January 1982, 74-75.

25.4.17. "The New Power FETs," February 1982, 94-97.

25.4.18. "Focus on CMOS,"