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Watkins-Johnson Tech Notes were small pamphlets covering technical topics of interest to WJ customers as well as engineers in the government and industry. Several WJ staff have told me the company's success arose from bringing young engineers into "WJ University." WJ Tech Notes can, in one sense, be viewed as a trade/scientific journal for the specialized interests in the SIGINT, ELINT, space communications and semiconductor industries.
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RF Cafe is now the only online source for scans of the WJ Tech Note series. Triquint used to host online scans of B/W photocopies on their web site. Qorvo purchased Triquint and took their offering of the Tech Note series off the web (Triquint had purchased WJ Communications, the last division of the venerable WJ product family).
All of the ones for sale here are color originals and many are uncirculated obtained from the estate of a long-time WJ factory depot technician. The vast majority are in very good to excellent condition. If my stock runs low and substandard copies are available, you will be contacted with a full description and a request for confirmation before shipping.
All prices in the table below are for single copies. Quantity discount of 10% for 10-24 different titles, 20% for over 25 different titles. Multiple copies of the same title will not be discounted. Limited quantities are available and many are already sold out. Shipping to a US address is via Flat Rate Priority Mail. Current rates will be used.
International shipping at current rates. Purchaser assumes all responsibilities for customs and full liability for any problems that develop in the course of overseas shipping.
All payment shall be by PayPal.
vol |
no |
mo |
yr |
title |
author(s) |
products covered, mentioned or pictured |
Price | online scan at RF Cafe |
| 1 | 1 | Jan/Feb | 1974 | Developing the Electron Bombarded Semiconductor | staff | WJ-3650, WJ-3653 | $10 | yes |
| 2 | Mar/Apr | Developments in FML and Miniature Millimeter LNTWA Devices | staff | WJ-466, WJ-467 | $3 | yes | ||
| 3 | May/Jun | The Laminar Flow Gun CRT | staff | WJ-3407 | n/a | yes | ||
| 4 | Jul/Aug | The Coplanar Mixer | Ferenc A. Marki | WJ-M22, WJ-C41 | $3 | yes | ||
| 5 | Sep/Oct | YIG-tuned bulk GaAs Oscillators | staff | WJ-5008 | n/a | yes | ||
| 6 | Nov/Dec | Voltage Controlled Oscillators in Modern ECM Systems | Ronald N. Buswell | $3 | yes | |||
| 2 | 1 | Jan/Feb | 1975 | X-Ray Flux from Transmission-Target Tubes | William Hershyn | n/a | yes | |
| 2 | Mar/Apr | Airborne Rotary DF Antenna Systems | Terry Harper | WJ-EP-22, WJ-L6-A1 | $3 | yes | ||
| 3 | May/Jun | Microwave Frequency Synthesizers | Charles E. Foster, II, Thomas G. Simon | WJ-1250, WJ-1251, WJ-1740 | $3 | yes | ||
| 4 | Jul/Aug | High Probability of Intercept Receivers | Terry Harper | $3 | yes | |||
| 5 | Sep/Oct | Ka-band YIG-tuned GaAs Oscillators | William Green, Walter Wilser, Kurt Zublin | $3 | yes | |||
| 6 | Nov/Dec | A Modern Receiving System Approach to EMI/EMC/TEMPEST Measurements | Kenneth Bach | WJ-8940A | $5 | yes | ||
| 3 | 1 | Jan/Feb | 1976 | Electron Bombarded Semiconductors | Bruce Bell, Richard Knight | WJ-3652, WJ-3680, WJ-3681, WJ-3684 | $5 | yes |
| 2 | Mar/Apr | Linear VCOs | Ronald N. Buswell | WJ-2835-41 | $5 | yes | ||
| 3 | May/Jun | EW Acquisition Systems | B. R. Hatcher | $3 | yes | |||
| 4 | Jul/Aug | Gain of Directional Antennas | John E. Hill | $5 | yes | |||
| 5 | Sep/Oct | EMC/TEMPEST Detection Systems... | Al Bellman | RS-125, WJ-8940B, WJ-9026, | $10 | yes | ||
| 6 | Nov/Dec | Signal Recognition in a Complex Radar Environment | J. William Campbell, Stephen Saperstein | $3 | yes | |||
| 4 | 1 | Jan/Feb | 1977 | Low-Noise GaAs FET Amplifiers | Frank E. Emery | WJ-5300, WJ-5310, WJ-5314, WJ-5320, WJ-5325, WJ-6621 | $3 | no |
| 2 | Mar/Apr | Advances in Microwave Receiver Testing | Charles E. Foster, II, Kenway J. Wong | WJ-1192-4, WJ-1250, WJ-1251-4, -7 & -8, WJ-1253A, WJ-1253B, WJ-1254-1, WJ-1255, WJ-1256-2 | $3 | yes | ||
| 3 | May/Jun | Design of Power Converters for Space TWTA's | Charles B. Loftus, Jr | WJ-1171 | $3 | yes | ||
| 4 | Jul/Aug | Pulse X-Ray Tubes | Walter S. Knodel, III, William Hershyn, Timothy R. Emery | $3 | yes | |||
| 5 | Sep/Oct | YIG-Tuned Integrated Devices | James C. Papp, Robert "Val" Jackson | WJ-940/TN-600, WJ-A71, WJ-A5, WJ-2250 | n/a | yes | ||
| 6 | Nov/Dec | Cavity-Controlled Oscillators | Thomas R. Bushnell, Ronald N. Buswell | WJ-2873-2 | $3 | yes | ||
| 5 | 1 | Jan/Feb | 1978 | Mixers as Phase Detectors | Stephan R. Kurtz | WJ-M1E, WJ-M62 | $3 | yes |
| 2 | Mar/Apr | HF Receiver Design | Charles E. Dexter, Robert D. Glaz | WJ-8718 | $5 | yes | ||
| 3 | May/Jun | Transportation Lag in Phase-Locked Loops | Scott F. Wetenkamp, Kenway J. Wong | $3 | no | |||
| 4 | Jul/Aug | Hyperabrupt Varactor-Tuned Oscillators | Richard M. Beach | $5 | no | |||
| 5 | Sep/Oct | Solid-State Limiting Amplifiers | Dr. Frank E. Emery | WJ-5310 | $2 | no | ||
| 6 | Nov/Dec | Miniature X-band Amplifier and Down Converters | E. James Crescenzi, Jr, Ferenc A. Marki | WJ-C81-2 | $2 | no | ||
| 6 | 1 | Jan/Feb | 1979 | Cascadable Amplifiers | Daniel L. Cheadle | WJ-A39, WJ-A87, WJ-EA2, WJ-PA1, WJ-PA2, | $3 | yes |
| 2 | Mar/Apr | Advances in CRT Technology Part 1 | Norman H. Lehrer | $2 | no | |||
| 3 | May/Jun | Advances in CRT technology Part 2 | Norman H. Lehrer | $2 | no | |||
| 4 | Jul/Aug | Antenna polarization | John E. Hill | $3 | no | |||
| 5 | Sep/Oct | YIG-Tuned FET Oscillator Design 8-18 GHz | James C. Papp, Yoshiomi Y. Koyano | $3 | no | |||
| 6 | Nov/Dec | Signals Typical to the HF Spectrum | Robert D. Glaz | WJ-8718 | $5 | no | ||
| 7 | 1 | Jan/Feb | 1980 | Hybridization of Competitive Receivers | Terry Harper | $5 | no | |
| 2 | Mar/Apr | High Dynamic Range Receiver Parameters | Rodney K. McDowell | WJ-8617A | $5 | yes | ||
| 3 | May/Jun | Digitally Controlled VHF/UHF Receiver Design | Charles E. Dexter | WJ-8617A | $5 | no | ||
| 4 | Jul/Aug | Ultralow-Noise Source for Noise Analyzer Calibration | Richard S. Napier | WJ-1221-23, WJ-1250, WJ-1251 | $3 | no | ||
| 5 | Sep/Oct | FSK: Signals and Demodulation | Bob Watson | WJ-9470 series | $5 | yes | ||
| 6 | Nov/Dec | Specifying High-rel Mixers and Amplifiers | Barry D. Bakner | $3 | no | |||
| 8 | 1 | Jan/Feb | 1981 | UHF/VHF Direction Finding | James B. Harrington, Thomas G. Callaghan | WJ-8975, WJ-9880 | $5 | no |
| 2 | Mar/Apr | Mixers: Part 1 | Bert C. Henderson | WJ-M1K, WJ-M40 | $3 | yes | ||
| 3 | May/Jun | Mixers: Part 2 | Bert C. Henderson | WJ-M31, WJ-M40 | $3 | yes | ||
| 4 | Jul/Aug | Antenna Pedestals for Microwave Recon Systems | Richard A. Gagelin | WJ-EP30-2, WJ-EP40 | $10 | no | ||
| 5 | Sep/Oct | Digital Transmission of Analog Signals | John F. DeLozier | $5 | yes | |||
| 6 | Nov/Dec | Local Oscillator Phase Noise | C. John Grebenkemper | $5 | yes | |||
| 9 | 1 | Jan/Feb | 1982 | Improving System and Environmental DF Accuracy | James B. Harrington | $3 | no | |
| 2 | Mar/Apr | DF System Calibration and Correction Techniques | James B. Harrington | $10 | no | |||
| 3 | May/Jun | Digital Signal Processing for Multichannel Receiving Systems | Benedict J. Nardi | $10 | no | |||
| 4 | Jul/Aug | Design of Automatic Receiver Test Systems | Scott A. Moser | $3 | no | |||
| 5 | Sep/Oct | 18 to 60 GHz Signal Generation from Existing Sources | Richard S. Napier, Judi Cowell | WJ-1204-42 | $3 | no | ||
| 6 | Nov/Dec | Time-Domain Receivers For Pulsed Signals - Part 1 | Joel E. Schindall, Malcolm J. Caraballo | $5 | yes | |||
| 10 | 1 | Jan/Feb | 1983 | Time-Domain Receivers For Pulsed Signals - Part 2 | Joel E. Schindall, Malcolm J. Caraballo | WJ-1920, WJ-1921 | $3 | yes |
| 2 | Mar/Apr | Frequency Memory Loops | Richard N. DeGunther, Stephen P. MacCabe | $3 | no | |||
| 3 | May/Jun | ELF/VLF Receiver Design | Warren K. Gruber | WJ-8940B/ELF | $5 | yes | ||
| 4 | Jul/Aug | Predicting Intermodulation Suppression In Double-Balanced Mixers | Bert C. Henderson | WJ-M2T, WJ-M4T, WJ-M50A, WJ-M83, WJ-M87, WJ-M88, WJ-M89, WJ-M93 | $3 | yes | ||
| 5 | Sep/Oct | Low-Power VHF/UHF Synthesizer Design | Henry W. Anderson | WJ-8627-2, -4 & -6, WJ-9040/IFT100 | $3 | no | ||
| 6 | Nov/Dec | Microwave Sampling for Ultra-Broadband Frequency Conversion | Stephen E. Moore | WJ-SN-701, WJ-6221-2, WJ-6222-1 | $3 | no | ||
| 11 | 1 | Jan/Feb | 1984 | Microwave Switch Selection Techniques | Salvatore J. Algeri, Geln R. Hicks | WJ-MS202 | $2 | no |
| 2 | Mar/Apr | PSK Demodulation Part 1 | J. Mark Steber | $3 | yes | |||
| 3 | May/Jun | PSK Demodulation Part 2 | J. Mark Steber | $2 | yes | |||
| 4 | Jul/Aug | Competitive Receiver Technologies | Gregory J. Donaldson | $5 | no | |||
| 5 | Sep/Oct | RF Signal Processing Before the Receiver | David Z. Janich | $5 | no | |||
| 6 | Nov/Dec | Software Design of Microprocessor-Controlled Receivers Part 1 | Charles E. Dexter, Anthony W. Poffenberger | WJ-8615 | $5 | no | ||
| 12 | 1 | Jan/Feb | 1985 | Software Design of Microprocessor-Controlled Receivers Part 2 | Charles E. Dexter, Anthony W. Poffenberger | WJ-8615D, WJ-8618B | $5 | yes |
| 2 | Mar/Apr | Design Considerations for Automated RF Test Equipment | Clifford S. Fitterer, Marc A. Nurmi | WJ-1550, WJ-8618B | $3 | yes | ||
| 3 | May/Jun | Image-Reject and Single-Sideband Mixer | Bert C. Henderson, James A. Cook | WJ-M33C, WJ-M34C | $3 | yes | ||
| 4 | Jul/Aug | Modulation Recognition for Automated Surveillance Systems | Jerry L. Perry, Jong-Kie Tjho, Thomas G.Callaghan | WJ-940/MRU100 | $5 | yes | ||
| 5 | Sep/Oct | Aircraft Detection and Identification Using Passive Electronic Support Measures | Joel E. Schindall | WJ-1780, WJ-TN-122 | $3 | yes | ||
| 6 | Nov/Dec | System Control of VHF/UHF Receivers | Charles E. Dexter, Thomas W. Goodell | WJ-8610A | $5 | yes | ||
| 13 | 1 | Jan/Feb | 1986 | Parallel Testing of Magnetic Bubble Memories | Stephen D. Adams | WJ-1484 | $2 | yes |
| 2 | Mar/Apr | Developments in Receiving System Integration Techniques | Richard M. Lober & Scott A. Frager | WJ-9040 | $5 | yes | ||
| 3 | May/Jun | Time Tracking of High PRI Signals With Bit-Slice Microprocessors | Douglas Seter | $3 | yes | |||
| 4 | Jul/Aug | Dual Mixers | Steven E. Avery | $3 | yes | |||
| 5 | Sep/Oct | Wideband YIG-tuned Oscillators | staff | WJ-6810-310F, WJ-6830 | $3 | yes | ||
| 6 | Nov/Dec | Measurement of GaAs FET Noise Parameters | Robert Froelich | WJ-F105R | $3 | no | ||
| 14 | 1 | Jan/Feb | 1987 | Receiver Dynamic Range: Part 1 | Robert E. Watson | WJ-8615D, WJ-8940B | $5 | yes |
| 2 | Mar/Apr | Receiver Dynamic Range: Part 2 | Robert E. Watson | RS-111-1B, WJ-8615D, WJ-8617B, WJ-9073-2, Icom R-7000, R&S "xxx-500" | $5 | yes | ||
| 3 | May/Jun | Subsystem Building Blocks for High-performance Microwave Systems | Stephen P. MacCabe | WJ-C85 | $10 | no | ||
| 4 | Jul/Aug | How To Specify And Use A DTO/VCO | Ronald N. Buswell | WJ-2854-22, WJ-2855-37 | $3 | no | ||
| 5 | Sep/Oct | A Rapid-Channel Identifier for EW Receivers | Dr. Richard G. Ranson, Dr. Gregory L. Hey-Shipton, Dr. John G. Galli | $2 | no | |||
| 6 | Nov/Dec | Polarization Measurement: Part 1 | David L. Hawthorne | $1 | no | |||
| 15 | 1 | Jan/Feb | 1988 | Polarization Measurement: Part 2 | David L. Hawthorne | WJ-TN-122 | $1 | yes |
| 2 | Mar/Apr | MIL-Specification Mixers | Sherrie A. Schindler | $1 | yes | |||
| 3 | May/Jun | Integrated Mixer-Preamplifiers | Bert C. Henderson, James M Zazkowski | WJ-6242, WJ-6243, WJ-A75, WJ-M2T, WJ-M9H, WJ-M86, WJ-PA48 | $3 | no | ||
| 4 | Jul/Aug | Integrated Techniques For Precision Waveform Measurement | Gregory J. Donaldson | WJ ELINT collection shelter | $3 | no | ||
| 5 | Sep/Oct | Six-Stage YIG Filters | Marinus Korber | WJ-5906, WJ-5907, WJ-5908, WJ-5909 | $3 | no | ||
| 6 | Nov/Dec | Spinning DF Antenna Systems | Mark D. Hanson | WJ-49201, WJ-49726, WJ-49861 | $3 | no | ||
| 16 | 1 | Jan/Feb | 1989 | Automated Noise-Parameter Measurements Using a Microwave Probe | Robert Froelich | $3 | yes | |
| 2 | Mar/Apr | Rapid Broadband Signal Acquisition | Allen L. Shapiro | WJ-8628, WJ-9195C | $5 | yes | ||
| 3 | May/Jun | Cascaded Amplifiers | Timothy J. Galla | WJ-A31-1, WJ-6203-426 | $3 | yes | ||
| 4 | Jul/Aug | Frequency Discriminators | Jerome J. Ferr | $2 | yes | |||
| 5 | Sep/Oct | Design Considerations for Miniaturized Receivers | Charles E. Dexter | WJ-8607 | $5 | yes | ||
| 6 | Nov/Dec | Millimeter-Wave Block Converters | Gregory L. Hey-Shipton, Anthony W. Denning | $3 | yes | |||
| 17 | 1 | Jan/Feb | 1990 | Mixers in Microwave Systems Part 1 | Bert C. Henderson | WJ-M50 | $1 | yes |
| 2 | Mar/Apr | Mixers in Microwave Systems Part 2 | Bert C. Henderson | WJ-M1K, WJ- M4A, WJ-M50 WJ-M79 | $1 | yes | ||
| 3 | May/Jun | Surface-Mount Component Technology | Louis M. Seieroe, Steven E. Avery, Hyung Paek, Eric K. Carriere | $5 | yes | |||
| 4 | Jul/Aug | Fiber Optics for Receivers | Judith A. Kay | $3 | yes | |||
| 5 | Sep/Oct | Combline Filters for Microwave and Millimeter-wave Frequencies Part 1 | Gregory L. Hey-Shipton | $3 | yes | |||
| 6 | Nov/Dec | Combline Filters for Microwave and Millimeter-wave Frequencies Part 2 | Gregory L. Hey-Shipton | $3 | yes | |||
| 18 | 1 | Jan/Feb | 1991 | Surface-Mount Devices Reflow Soldering | Donald E. Fuller | WJ-989 | $2 | yes |
| 2 | Mar/Apr | Design Considerations For Fast Switching PLL Synthesizers | William C. Beam, Phillip J. Rezin | WJ-8607 | $3 | yes | ||
| 3 | May/Jun | Atmospheric Pressure vs. Low Pressure Chemical Vapor Deposition | Nicholas Gralenski | $1 | yes | |||
| 4 | Jul/Aug | GaAs MMIC Voltage-Controlled Phase Shifter | Robert D. Frost, David A. Fisher, Don E. Peck | $1 | yes |