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Amateur Radio - Ham Radio Magazine Searchable Index - List by Category

A Searchable Index of the old "Ham Radio" Magazine

"Ham Radio Magazine" was a periodical that ran for almost 22 years from 1968 to 1990. Use this indexed search to quickly find what you'd like to look at and then go purchase the scanned magazines (On CD, elsewhere, or occasionally from some generous download website) or look for the old paper magazine at used bookstores.

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Search

By Title Text By Author Callsign By Year Category

Results by Category: 15 — miscellaneous technical

Article Author Page Issue
Double-balanced mixersW1DTY48Mar 68
TV sweep tubes in linear service, full-blast operation ofW6SAI, W6UOV9Apr 68
Amateur anemometerW6GXN52Jun 68
Converting wavelength to inches (HN)WA6SXC56Jun 68
Solar activity, aspects ofK3CHP21Jun 68
Current flow?, which way doesW2DXH34Jul 68
Amateur Radio in Space - a bibliographyW6OLO60Aug 68
Three-phase motors (HN)W6HPH79Aug 68
Converting vacuum tube equipment to solid-stateW2EEY30Aug 68
Amateur anemometerShort circuit34Aug 68
Thermoelectric power suppliesK1AJE48Sep 68
Wind direction indicator, digitalW6GXN14Sep 68
Basic electronic unitsW2DXH18Oct 68
Amateur Radio in Space - a bibliographyAddenda77Oct 68
Single-tuned interstage networks, designingK6ZGQ59Oct 68
Pi and pi-L networksW6SAI36Nov 68
More electronic unitsW1EZT56Nov 68
Satellite picture transmission, recordingW6CCN6Nov 68
Ramp generatorsW6GXN56Dec 68
QRP operationW7OE36Dec 68
Tuning, Current-controlledK2ZSQ38Jan 69
Gridded tubes, vhf-uhf effects inW6UOV8Jan 69
Signal detection and communication in the presence of white noiseWB6IOM16Feb 69
Noise figure, meaning ofK6MIO26Mar 69
Safety in the ham shackDarr, James44Mar 69
Tetrodes, external-anodeW6SAI23Jun 69
Lighthouse tubes for uhfW6UOV27Jun 69
Grounding and wiringW1EZT44Jun 69
Glass semiconductorsW1EZT54Jul 69
Bandpass filters, single-poleW6HPH51Sep 69
Mismatched transmitter loads, affect ofW5JJ60Sep 69
Fm techniquesW6SAI8Sep 69
Radio communications linksW1EZT44Oct 69
Antennas and capture areaK6MIO42Nov 69
Operational amplifiersWB2EGZ6Nov 69
Frequency synthesisWA5SKM42Dec 69
Graphical network solutionsW1NCK,W2CTK26Dec 69
MnemonicsW6NIF69Dec 69
Proportional temperature control for crystal ovensVE5FP44Jan 70
Rf power transistors, how to useWA7KRE8Jan 70
Power supplies, survey of solid-stateW6GXN25Feb 70
Warning lights, increasing reliability ofW3NK40Feb 70
Double-balanced modulator, broadbandWA6NCT8Mar 70
Clock, 24-hour digitalK4ALS51Apr 70
Earth currents (HN)W7OUI80Apr 70
Thermometer, electronicVK3ZNV30Apr 70
Ground plowW1EZT64May 70
Isotropic source and practical antennasK6FD32May 70
Fm techniquesShort circuit79Jun 70
Phase-shift networks, design criteria forG3NRW34Jun 70
Rf power-detecting devicesK6JYO28Jun 70
LED experimentsW4KAE6Jun 70
Frequency multipliers, transistorW6AJF49Jun 70
Hybrids and couplers, hfW2CTK57Jul 70
Computer-aided circuit analysisK1ORV30Aug 70
Reactance problems, nomograph forW6NIF51Sep 70
Neutralizing small-signal amplifiersWA4WDK40Sep 70
Clock, 24-hour digitalShort circuit76Sep 70
Ferrite beadsW5JJ48Oct 70
Thyristors, introduction toWA7KRE54Oct 70
Lunar-path nomographWA6NCT28Oct 70
Smith chart, how to useW1DTY16Nov 70
Laser communicationsW4KAE28Nov 70
Interference, rfW1DTY12Dec 70
Resistors, frequency sensitive (HN)W8YFB54Dec 70
Hybrids and couplers, hfShort circuit72Dec 70
Intermittent voice operation of power tubesW6SAI24Jan 71
Fire protectionDarr54Jan 71
Bandpass filters for 50 and 144 MHz, etchedW5KHT6Feb 71
Filter preamplifiers for 50 and 144 MHz, etchedW5KHT6Feb 71
Transistor amplifiers, tabulated characteristics ofW5JJ30Mar 71
Vacuum-tube amplifiers, tabulated characteristics ofW5JJ30Mar 71
Rating tubes for linear amplifier serviceW6UOV, W6SAI50Mar 71
Injection lasers (letter)Mims64Apr 71
Coil-winding data, vhf and uhfK3SVC6Apr 71
lnductors, how to use ferrite and powdered-iron forW6GXN15Apr 71
Power, voltage and impedance nomographW2TQK32Apr 71
Silver/silicone grease (HN)W6DDB63May 71
Integrated circuits, part IW3FQJ40Jun 71
Fire extinguishers (letter)W5PGG68Jul 71
Resistors, frequency sensitive (letter)W5UHV68Jul 71
Integrated circuits, part IIW3FQJ58Jul 71
Fire protection (letter)K7QCM62Aug 71
Frequency multipliersW6GXN6Aug 71
Integrated circuits, part IIIW3FQJ50Aug 71
Mini-mobileK9UQN58Aug 71
Phase-locked loops, ICW3FQJ54Sep 71
Printed-circuit boards, photofabrication ofHutchinson6Sep 71
Frequency synchronization for scatter-mode propagationK2OVS26Sep 71
Injection lasers, high powerMims28Sep 71
Pi networks, series-tunedW2EGH42Oct 71
Stress analysis of antenna systemsW2FZJ23Oct 71
Resistor performance at high frequenciesK1ORV36Oct 71
Phase-locked loops, IC, experiments withW3FQJ58Oct 71
Radiotelegraph translator and transcriberW7CUU, K7KFA8Nov 71
Smith chart, how to useCorrection76Dec 71
Bypassing, rf, at uhfWB6BHI50Jan 72
Microwaves, IntroductionW1CBY20Jan 72
Torolds, plug-in (HN)K8EEG60Jan 72
Infrared communications (letter)K2OAW65Jan 72
Toroids, calculating inductance ofWB9FHC50Feb 72
Alarm, wet basement (HN)W2EMF68Apr 72
Eliminating the matrixKH6AP60May 72
lnductors, how to use ferrite and powdered-iron forCorrection63May 72
Freon danger (letter)WA5RTB63May 72
Microwaves, getting started inRoubal53Jun 72
Y parameters, using in rf amplifier designWA0TCU46Jul 72
Power dividers and hybridsW1DAX30Aug 72
Pi network designW6FFC6Sep 72
Multi-function integrated circuitsW3FQJ46Oct 72
Frequency synthesizer, high-frequencyK2BLA16Oct 72
Satellite communications, first step toK1MTA52Nov 72
Fet biasingW3FQJ61Nov 72
Speech clippers, rf, performance ofG6XN26Nov 72
Pulse-duration modulationW3FQJ65Nov 72
Satellite signal polarizationKH6IJ6Dec 72
Capacitors, oil-filled (HN)W2OLU66Dec 72
Pi network inductors (letter)W7IV78Dec 72
Noise bridge for impedance measurementsYA1GJM62Jan 73
Networks, transmitter matchingW6FFC6Jan 73
Communications receivers, designing for strong-signal performanceMoors6Feb 73
Ferrite beads, how to useK1ORV34Mar 73
Interference, rfWA3NFW30Mar 73
Radio-frequency interferenceWA3NFW30Mar 73
Satellite communications, first step toAdded notes (letter)73Apr 73
Effective radiated power (HN)VE7CB72May 73
Gamma-matching networks, how to designW7ITB46May 73
Standing-wave ratios, importance ofW2HB26Jul 73
Impedance-matching systems, designingW7CSD58Jul 73
Batteries, selecting for portable equipmentWB0AIK40Aug 73
Square roots, finding (HN)K9DHD67Sep 73
Digital mixer, introductionWB8IFM42Dec 73
Bandpass filter designK4KJ36Dec 73
Heatsink problems, how to solveWA5SNZ46Jan 74
L-networks, how to designW7LR26Feb 74
Square roots, finding (HN)Increased accuracy (letter)55Mar 74
Lowpass filters for solid-state linear amplifiersWA0JYK38Mar 74
Digital readout system, simplifiedW6OIS42Mar 74
Broadband amplifier, wide-rangeW6GXN40Apr 74
Filters, active for direct-conversion receiversW7ZOI12Apr 74
Standing-wave ratios, importance ofCorrection (letter)67May 74
Programmable calculator simplifies antenna design (HN)W3DVO70May 74
Local-oscillator waveform effects on spurious mixer responsesRobinson, Smith44Jun 74
Radio observatory, vhfHam44Jul 74
Solar energyW3FQJ54Jul 74
Marine installations, amateur, on small boatsW3MR44Aug 74
Wind loading on towers and antenna structures, how to calculateK4KJ16Aug 74
Phase detector, harmonicW5TRS40Aug 74
Antenna masts, design for pipeW3MR52Sep 74
Power amplifiers, high-efficiency rfWB8LQK8Oct 74
Harmonic output, how to predictUtne34Nov 74
Lowpass filters for solid-state linear amplifiersShort circuit62Dec 74
Q factor, understandingW5JJ16Dec 74
L-networks, how to designShort circuit62Dec 74
Programmable calculators, usingW3DVO40Mar 75
Interference, hi-fi (HN)K6KA63Mar 75
Rf amplifier, widebandWB4KSS58Apr 75
Broadband amplifier, bipolarWB4KSS58Apr 75
Antenna masts, design for pipeAdded design notes (letter)75May 75
Interference, rf, its cause and cureG3LLL26Jun 75
Wind loading on towers and antenna structures, how to calculateAdded note56Jul 75
Radiation hazard, rfW1DTY4Sep 75
Toroidal coil inductance (HN)W3WLX26Sep 75
Trig functions on a pocket calculator (HN)W9ZTK60Nov 75
Interference, rf (letter)G3LLL65Nov 75
Radiation hazard, rfCorrection59Dec 75
Microprocessors, introduction toWB4HYJ, Rony, Titus32Dec 75
Digital clock, low-costWA6DYW26Feb 76
Bipolar-fet amplifiersW6HDM16Feb 76
White noise diodes, selecting (HN)W6DOB65Apr 76
Interference, rf, coaxial connectors can generateW1DTY48Jun 76
Toroid coils, 88-mH (HN)WA1NJG70Jun 76
Staircase generator (C&T)W1DTY52Jun 76
Wind generatorsW3FQJ24Jul 76
Tube shields (HN)W9KNI69Jul 76
Frequency synthesizers, how to designDJ2LR10Jul 76
Calculator, hand-held electronic, its function and useW4MB18Aug 76
Electrical units: their derivation and historyWB6EYV30Aug 76
Calculator, hand-held electronic, solving problems with itW4MB34Sep 76
Bipolar-fet amplifiersComments, Worcester76Sep 76
RC active filters using op ampsW4YIB54Oct 76
Frequency synthesizers, how to designShort circuit85Oct 76
Rf autotransformers, widebandK4KJ10Nov 76
Network, the ladderW2CHO48Dec 76
Broadband amplifier uses mospower fetOxner32Dec 76
Matching techniques, broadband, for transistor rf amplifiersWA7WHZ30Jan 77
LC circuit calculationsW2OUX68Feb 77
Bandspreading techniques for resonant circuitsAnderson46Feb 77
Temperature sensor, remote (HN)WA1NJG72Feb 77
Safety circuit, pushbutton switch (HN)K3AFF, WA1FHB73Feb 77
Rf interference, suppression in telephonesK6LDZ79Mar 77
24-hour clock, digitalWB6AFT44Mar 77
Microwave rf generators, solid-stateW1HR10Apr 77
Frequency synthesizer sidebands, filter reduces (HN)K1PCT80Jun 77
Bandpass filters, top-coupledAnderson34Jun 77
Admittance, impedance and circuit analysisAnderson76Aug 77
Pi network design and analysisW2HB30Sep 77
Frequency counter as a synthesizerDJ2LR44Sep 77
Hydroelectric station, amateurK6WX50Sep 77
Calculator-aided circuit analysisAnderson38Oct 77
Contact bounce eliminators (letters)W7IV94Nov 77
Synthesizer design (letters)WB2CPA94Nov 77
Harmonic generator, crystal-controlledW1KNI66Nov 77
Bandspreading techniques for resonant circuitsShort circuit69Dec 77
Pi network design and analysisShort circuit68Dec 77
Simple formula for microstrip impedance (HN)W1HR72Dec 77
Active bandpass filtersWB6GRZ49Dec 77
Pi network designAnderson, Leonard H.36Mar 78
Matching networks, how to designAnderson, Leonard H.44Apr 78
RC active filters using op ampsComments, W6NRM102Jun 78
Gyrator: a synthetic inductorWB9ATW96Jun 78
Rf chokes, performance above and below resonanceWA5SNZ40Jun 78
Electrolytic capacitors, re-forming the oxide layer (HN)K9MM99Jul 78
Phase-locked loopsWB6FOC54Jul 78
Interference problems, how to solveON4UN93Jul 78
Radio sounding systemKL7GLK42Jul 78
TVI locatorW6BD23Aug 78
Frequency-lock loopWA3ZKZ17Aug 78
Hf synthesizer, higher resolution forN4ES34Aug 78
Crystal filters, monolithicDK1AG28Nov 78
Lightning protection for the amateur stationK9MM18Dec 78
Four-quadrant curve tracer/analyzerW1QXS46Feb 79
Active bandpass filtersShort circuit94Feb 79
RC active filters using op ampsShort circuit94Feb 79
Field-strength meter and volt-ohmmeterWB6AFT70Feb 79
Quartz crystalsWB2EGZ37Feb 79
Admittance, impedance and circuit analysisShort circuit94Feb 79
Passive lumped constant 90-degree phase-difference networksK6ZV70Mar 79
Pi network designComments Anderson, Leonard H.6Apr 79
Impedance measurements using an SWR meterK4QF80Apr 79
Noise bridge for impedance measurementsComments, W6BXI6May 79
Impedance bridge measurement errors and correctionsK4KJ22May 79
Talking digital readout for amateur transceiversN9KV58Jun 79
Synthesizer system, simple (HN)AA7M78Jul 79
Lightning protection for the amateur stationComments, W6RTK, WB2FBL6Jul 79
Commutating filtersW6GXN54Sep 79
Rf exposureWA2UMY26Sep 79
Wideband amplifier summaryDJ2LR34Nov 79
Rf radiation, environmental aspects ofK6YB24Dec 79
Speed of light, observations on, through the metric systemW7ITB62Jan 80
Air pressure, measuring across transmitting tubes (HN)W4PSJ89Jan 80
Plasma-diode experimentsStockman, Harry62Feb 80
Phase-shift network, 90-degree, offers 2:1 bandwidthK6ZV66Feb 80
Talking clock (letter)N9KV75Feb 80
Speed of light (letter)WB2AOT6Apr 80
Talking digital readout (letter)N5AF6May 80
Ground systems, notes onK6WX26May 80
Earth anchors for guyed towersW5QJR60May 80
Variable-inductance variable frequency oscillatorsW0YBF50Jul 80
Linear-amplifier cost efficiencyW8MFL60Jul 80
Rotary-dial mechanism for digitally tuned transceiversK3CU14Jul 80
Inductance or capacitance, a method for measuring (HN)W2CHO68Jul 80
VLF dip meter, no-adjust bias for (HN)WB3IDJ69Jul 80
Ni-cad battery charging (letter)W6NRM6Jul 80
DSB generators, audio-driven (HN)W5TRS68Jul 80
Solid-state amplifier switching (HN)WB2HTH75Aug 80
Linear tuning, a fresh look at (HN)W2OLU74Aug 80
Eimac 5CX1500A power pentode, notes onK9XI60Aug 80
Tubes, surplus (letter)W2JTP6Aug 80
Signal-strength, measuringW2YE20Aug 80
Light-emitting diodes: theory and applicationWB6AFT12Aug 80
Speed of light (letter)W4MLM6Aug 80
Semiconductor curve tracing simplifiedW6HPH34Aug 80
Frequency divider, diodeW5TRS54Aug 80
Speed of light (letter)KL6WU67Sep 80
Navigational aid for small-boat operatorsW5TRS46Sep 80
PCB "threat" (letter)VE5UK66Sep 80
Tubes, surplus (letter)Sellati66Sep 80
Optimum pi-network designDL9LX50Sep 80
CW identifier, versatileWB2BWJ22Oct 80
Battery charging (letter)Carlson6Nov 80
Q systemsW1IUZ6Nov 80
Crystal use locatorWA6SWR36Nov 80
T coupler, the (HN)K3NXU78Nov 80
Circuit figure of merit (letter)W2JTP6Dec 80
Amplitude compandored sidebandWB6JNN48Dec 80
Analog-to-digital display converter for the visually handicappedKB7JW44Jan 81
Varactor tuning tips (HN)N3GN67Feb 81
Hyperbolic navigation (letter)Burhans, Ralph W.6Feb 81
Electrolytic capacitors (letter)WB8MKU6Jun 81
Sorting and inventory of standard resistor values, computer program forWA6SWR66Jun 81
Super beep circuit for repeatersKP4AQI48Jul 81
Ac-line switching precautions (HN)W5PGG69Jul 81
Instant balun (letter)W8MQW6Aug 81
Operation upgrade: part 1W6BNB12Sep 81
Multiplexing, the how and why ofKH6N60Sep 81
Rfi cures: avoiding side effectsWB9TQG52Sep 81
Operation upgrade: part 2W6BNB28Oct 81
Ham radio techniques: radio-frequency interferenceW6SAI34Nov 81
Rf power distributor, theW3BYM48Dec 81
Ham radio techniques: radio-frequency interferenceW6SAI30Dec 81
Rfi cures: avoiding side effectsComments WB7SYB, WB9TQG, VE2QO6Dec 81
Wilkinson hybridsWA2EWT12Jan 82
CW identifier, versatileShort circuit70Feb 82
CW identifier, versatile, an improved memory forWB2BWJ24Feb 82
Repeater controller, microprocessor-bandKB0CY12Mar 82
Timer, electronic (HN)W9EBT65Mar 82
Amplifier for 220 MHz, stripline kilowattW2GN12Apr 82
Relay, inexpensive automatic send/receiveW0PBV40May 82
Computer for the blind (HN)W8MQW69Jun 82
Filters, bridgedW6MUR51Oct 82
CW station, updating (HN)KM5T77Oct 82
Low cost linear design and constructionW4MB12Dec 82
Data bandwidths comparedW9JD/250Dec 82
Filters (letter)W6XM8Feb 83
Filters (letter)Comments, W3NQW8Apr 83
Mysterious spur on 160N3BEK73May 83
Harmonic product detector for QRP transceiversW5FG44Jun 83
Communicating on 474,083 GHz (light wave communications)Comments, W6JTH8Jun 83
CATVI (letter)WB4NMA10Aug 83
VMOS on 1750 metersK1RGO71Oct 83
Mysterious spur on 160Comments, K0KL, N3BEJ95Nov 83
Photovoltaic cells: a progress reportWD8AHO52Dec 83
KWM 380 external control circuit (HN)WA2RUD96Dec 83
Power FETS: trend for VHF amplifiersPeters, Daniel and W7PUA12Jan 84
EMI/RFI shielding: new techniques part1Martin, Vaughn D.72Jan 84
EMI/RFI shielding: new techniques part2Martin, Vaughn D.84Feb 84
Photovoltaic cells: a progress reportComments: K6KVX, WD8AHO, etal10Feb 84
Noise cancellation circuitK1RGO75Mar 84
Audio to microwave amplifier, build your ownGruchalla, Michael12Mar 84
Resonant circuitsWD4C12Apr 84
Filter design, graphicW6NRW37Apr 84
Branch-line hybrid: part1WA2EWT107Apr 84
Ham radio techniquesW6SAI63May 84
Branch-line hybrid: part2WA2EWT93May 84
Neutralizing 572B final at 1500 watts output (HN)W2YW63Jun 84
Ham radio techniques, fifty years agoW6SAI58Jun 84
Peaked lowpass: a look at the ultraspherical filterW7ZOI96Jun 84
Impedance matching: a brief reviewWD4C49Jun 84
Filter design, graphicShort circuit13Jul 84
Linear amplifier, 3CX800A7K8RA17Aug 84
VHF/UHF world: the VHF/UHF primer, an introduction to filtersW1JR112Aug 84
ALC circuits, improving amplifier: part1WA8AJN40Aug 84
Electromagnetic interference and the digital eraK3PUR114Sep 84
RFI, solving the problems ofW2YW124Sep 84
ALC circuits, improving amplifier: part2WA8AJN38Sep 84
Prerecorded messages help the hearing impaired (HN)W2QLI87Sep 84
Ham radio techniquesW6SAI106Oct 84
Russian Woodpecker, the: a continuing nuisanceKR7L37Nov 84
The Guerri report: computer technologyW6MGI54Nov 84
The Guerri report: computer technologyShort circuit8Dec 84
Bicycle-powered stationW1BG25Dec 84
Solar power for your ham stationNH6N14Dec 84
Polymer film transforms mechanical energy to electrical energyWA4KFZ55Dec 84
Ham radio techniquesW6SAI75Jan 85
Low-pass filter, integrated circuitWB2KTG59Jan 85
The Guerri reportW6MGI124Jan 85
The Guerri report: superchips come of ageW6MGI126Feb 85
Ham radio techniquesW6SAI59Feb 85
Ham radio techniquesW6SAI83Mar 85
The Guerri reportW6MGI158Mar 85
Solar power for your ham stationShort circuit145Mar 85
Ham radio techniques: electron-hole theory exposed as fraudW6SAI67Apr 85
The Guerri reportW6MGI157Apr 85
The Guerri report: a busy signal from spaceW6MGI165May 85
Ham radio techniquesW6SAI66May 85
The Guerri report: predicting equipment failureW6MGI125Jun 85
Phase modulator, PLL (HN)VE3FHM117Jun 85
Ham radio techniquesW6SAI51Jun 85
The Guerri reportW6MGI124Jul 85
Ham radio techniquesW6SAI59Jul 85
The Guerri reportW6MGI124Aug 85
Ham radio techniquesW6SAI90Aug 85
The Guerri report: RF power supplies achieve high efficiencyW6MGI157Sep 85
Ham radio techniques: I have seen the future and it worksW6SAI91Sep 85
Ham radio techniquesW6SAI75Oct 85
The Guerri report: RF effects the good and the badW6MGI142Oct 85
Practically speaking: repairing flood damageK4IPV95Oct 85
The Guerri reportW6MGI140Nov 85
Ham radio techniquesW6SAI67Nov 85
Practically speaking: intermittents, pt.1K4IPV75Nov 85
Practically speaking: intermittents, pt.2K4IPV79Dec 85
Harmonics, Trapping stubbornN1RC99Jan 86
Quartz crystal resonatorsBoddaert, Peter85Feb 86
Two-tone signal generatorYB9ATA/WA7AQN25Feb 86
Monolithic RF amplifiersN6JH22Mar 86
VSWR bridgesK2LB37Mar 86
RF filters, Build narrowbandWB4EHS10Mar 86
Modifying the Trio-Kenwood TS930SWB9BXT67Apr 86
Wide-range RF power meterKA8OBL24Apr 86
Two-tone signal generatorShort circuit45Apr 86
RF filters, Build narrowbandShort circuit36Jun 86
Two-tone signal generatorShort circuit36Jun 86
VHF noise bridgeOE2APM/AA3K10Jul 86
Broadband amplifier-attenuatorW7SX59Jul 86
Very sensitive LF or HF field-strength meterK1RGO67Sep 86
NE5205 wideband RF amplifierGruchalla, Michael30Sep 86
Using the Spectrum MonitorComments: KI6DW9Nov 86
Function Generator: circuits from your signal generator - part 1K4IPV67Dec 86
Communicating on 474,083 GHz (light wave communications)WA6EJO10Dec 86
Amateur FSK: A spectral analysisWA6NCX42Dec 86
Buying topo mapsComments: K3SKE9Dec 86
Using CAD to rewind transformersW6WTU83Dec 86
Using spreadsheet programs for amateur radio projectsAD1B95Dec 86
NE5205 wideband RF amplifierShort circuit72Jan 87
Mobile theft deterrent: The WeekenderW6WTU81Feb 87
Can I patent it?K2LZ8Mar 87
Practically speaking: battery problems, pt1K4IPV62Jul 87
Build a 1-1000 MHz amplifier using MAR-4 MMICSWB6BIH33Jul 87
Lightning location and detectionVY1CW25Sep 87
Changing fundamental constants of scienceComments: W4SXK6Oct 87
Ham radio techniques: 9CXX revisitedW6SAI83Dec 87
New uses for old tunersW6WTU25Jan 88
Build a QSO "beeper"KF6CU38Jan 88
Power speaker enhances mobile operation (weekender)K1ZJH83Jan 88
Decibel, defining theGruchalla, Michael51Feb 88
Practically speaking: feedbackK4IPV60May 88
Ham Radio techniques: line voltage and power tube lifeW6SAI60Jul 88
Remedy for RFI (comment)K6WX9Jul 88
Ham Radio techniques: the joys of TVI or, were you on the air last night?W6SAI70Aug 88
Elmer's notebook: The mysterious "Q"W1SL110Sep 88
Intermittent reception due to lightning (HN)W2YW39Sep 88
Practically speaking: Overview of op amps- part 1K4IPV100Nov 88
Practically speaking: overview of op amps- part 2K4IPV83Dec 88
An Inexpensive VFO for the Yaesu FT-102VE3RF62Nov 89
Control By TonesZL2SX42Nov 89
Introduction to Waveform Generators- pt 2K4IPV82Dec 89
Identifying Kerchunkers and Other InterferenceK9GDF74Dec 89
Using ICOM IC-32AT As a Crossband Mini-RepeaterKW5O41Dec 89
An Audio Patch Panel for The Multimode StationKB6IC65Dec 89
Ham Radio Techniques: Antennas, GFI, Capacitors and FundamentalsW6SAI57Dec 89
Ezy tune, HW-5400 (HN)AB4DP70Jan 90
Simple eeprom programmerWA2IHE40Jan 90
Personal message centerAA4NX44Feb 90
Switchable bandwidth crystal filterN2DCH22Feb 90
Effective noise temperature, part 1: introduction and backgroundMichael Gruchalla58Feb 90
Handy ante switch (Weekender)W4E1N18Feb 90
Understanding over-the-horizon radarNU1N9Feb 90
Simple circuit prevents amplifier control relay failure (HN)NO7G30Feb 90
Understanding computer-generated RFINU1N75Mar 90
Build your own superchargerK3OF22Mar 90
Effective noise temperature, part 2: equivalent noise temperature and NFMichael Gruchalla33Mar 90
Understanding over-the-horizon radarComments, AG4R6Apr 90
Understanding over-the-horizon radarComments, AD1G9May 90
Practically Speaking: potpourriK4IPV71May 90
Design curves for loudness-compensated volume controlsTseng Liao30May 90
Build your own superchargerShort circuit78May 90
Cleaning electronic hardware (HN)WA1FHB57Jun 90