"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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By Title Text | By Author Callsign | By Year | Category |
---|---|---|---|
Article | Author | Page | Issue |
---|---|---|---|
Rf generator clip | W1DTY | 58 | Mar 68 |
Precision capacitor | W4BRS | 61 | Mar 68 |
Curve master, the | K8ERV | 40 | Mar 68 |
Voltmeter, improved transistor, part I | Maddever | 74 | Apr 68 |
Signal tracing in ham receivers | Allen | 52 | Apr 68 |
Impedance bridge, simple | WA9QJP | 40 | Apr 68 |
Signal injection in ham receivers | Allen | 72 | May 68 |
Dipper without plug-in coils | W6BLZ | 64 | May 68 |
Mini-spotter frequency checker | W7OE | 48 | May 68 |
Transistor tester for leakage and gain | W4BRS | 68 | May 68 |
S-meter readings (HN) | W1DTY | 56 | Jun 68 |
Receiver alignment | Allen | 64 | Jun 68 |
Voltmeter, transistor, part II | Maddever | 60 | Jul 68 |
Instrumentation and the ham | VE3GFN | 28 | Jul 68 |
Transistor tester | WA6NIL | 48 | Jul 68 |
Transformer shorts | W6BLZ | 36 | Jul 68 |
Troubleshooting transistor ham gear | Allen | 64 | Jul 68 |
Noise generators, using (HN) | K2ZSQ | 79 | Aug 68 |
Grid current measurement in grounded-grid amplifiers | W6SAI | 64 | Aug 68 |
Beta master, the | K8ERV | 18 | Aug 68 |
Panoramic reception, simple | W2EEY | 14 | Sep 68 |
Makeshift test equipment (HN) | W7FS | 77 | Sep 68 |
Signal source for 432 and 1296 MHz | K6RIL | 20 | Sep 68 |
Dummy loads, experimental | W8YFB | 36 | Sep 68 |
Rf current probe (HN) | W6HPH | 76 | Oct 68 |
Amateur frequency measurements | K6KA | 53 | Oct 68 |
Troubleshooting around fets | Allen | 42 | Oct 68 |
Calibrators and counters | K6KA | 41 | Nov 68 |
Troubleshooting by resistance measurement | Allen | 62 | Nov 68 |
Gdo, new uses for | K2ZSQ | 48 | Dec 68 |
Cubical quad measurements | W4YM | 42 | Jan 69 |
Vtvm modification | W6HPH | 51 | Feb 69 |
Monitorscope, miniature | WA3FIY | 34 | Mar 69 |
Calibrator, plug-in IC | K6KA | 22 | Mar 69 |
Multi-box (HN) | W3KBM | 68 | Jul 69 |
Oscilloscope calibrator (HN) | K4EEU | 69 | Jul 69 |
Antenna gain, measuring | K6JYO | 26 | Jul 69 |
Oscilloscope, troubleshooting amateur gear with | Allen | 52 | Aug 69 |
Uhf tuner tester for tv sets (HN) | Schuler | 73 | Sep 69 |
Oscilloscope, putting it to work | Allen | 64 | Sep 69 |
Frequency meter, crystal controlled (HN) | W5JSN | 71 | Sep 69 |
Zener tester, low-voltage (HN) | K3DPJ | 72 | Nov 69 |
Signal generator, tone moduiated for two and six meters | WA8OIK | 54 | Nov 69 |
Reflectometers | K1YZW | 65 | Dec 69 |
Trapezoidal monitor scope | VE3CUS | 22 | Dec 69 |
Counters: a solution to the readout problem | WA0GOZ | 66 | Jan 70 |
Impedance bridge (HN) | W6KZK | 67 | Feb 70 |
Regenerative detectors and a wideband amplifier for experimenters | W8YFB | 61 | Mar 70 |
Weak-signal source, 144 and 432 MHz | K6JC | 58 | Mar 70 |
Dummy load and rf wattmeter, low-power | W2OLU | 56 | Apr 70 |
Sweep generator, how to use | Allen | 60 | Apr 70 |
Capacitance meter, direct-reading | ZL2AUE | 46 | Apr 70 |
Swr bridge and power meter, integrated | W6DOB | 40 | May 70 |
Grid-dip oscillator, solid-state conversion of | W6AJZ | 20 | Jun 70 |
Frequency-shift meter, RTTY | VK3ZNV | 33 | Jun 70 |
Rf signal generator, solid-state | VE5FP | 42 | Jul 70 |
Counter, compact frequency | K4EEU | 16 | Jul 70 |
Frequency scaler, divide-by-ten | K4EEU | 26 | Aug 70 |
Bridge for antenna measurements, simple | W2CTK | 34 | Sep 70 |
RX impedance bridge | W2CTK | 34 | Sep 70 |
Harmonic generator (HN) | W5GDQ | 76 | Oct 70 |
Swr meter | W6VSV | 6 | Oct 70 |
Counter gating sources | K6KA | 48 | Nov 70 |
Transistor and diode tester | ZL2AMJ | 65 | Nov 70 |
Bridge, rf noise | WB2EGZ | 18 | Dec 70 |
Counter, compact frequency | Short circuit | 72 | Dec 70 |
Wavemeter, indicating | W6NIF | 26 | Dec 70 |
Meters, testing unknown (HN) | W1ONC | 66 | Jan 71 |
Converter, mosfet, for receiver instrumentation | WA9ZMT | 62 | Jan 71 |
Fm frequency meter, two-meter | W4JAZ | 40 | Jan 71 |
Electrolytic capacitors, measurement of (HN) | W2NA | 70 | Feb 71 |
Repairs, thinking your way through | Allen | 58 | Feb 71 |
RTTY signal generator | W7ZTC | 23 | Mar 71 |
Resistance standard, simple (HN) | W2OLU | 65 | Mar 71 |
Safer suicide cord (HN) | K6JYO | 64 | Mar 71 |
Sweep response curves for low-frequency l-f's | Allen | 56 | Mar 71 |
Frequency scaler, divide-by-ten | Short circuit | 72 | Apr 71 |
Wavemeter, indicating | Short circuit | 72 | Apr 71 |
Fm frequency meter, two-meter | Short circuit | 72 | Apr 71 |
Multitester (HN) | W1DTY | 63 | May 71 |
Coaxial cable, checking (letter) | W2OLU | 68 | May 71 |
Time-domain reflectometry, experimenter's approach to | WA0PIA | 22 | May 71 |
Fm deviation measurement (letter) | K5ZBA | 68 | May 71 |
Transmitter tuning unit for the blind | W9NTP | 60 | Jun 71 |
Decade standards, economical (HN) | W4ATE | 66 | Jun 71 |
Antenna matcher | W4SD | 24 | Jun 71 |
Counter readouts, switching (HN) | K6KA | 66 | Jun 71 |
Switch-off flasher (HN) | Thomas | 64 | Jul 71 |
Resistor decades, versatile | W4ATE | 66 | Jul 71 |
A-m modulation monitor, vhf (HN) | K7UNL | 67 | Jul 71 |
CRT intensifier for RTTY | K4VFA | 18 | Jul 71 |
Frequency calibrator, how to design | W3AEX | 54 | Jul 71 |
AC power-line monitor | W2OLU | 46 | Aug 71 |
Function generator, IC | W1DTY | 40 | Aug 71 |
Weak-signal source, stable, variable-output | K6JYO | 36 | Sep 71 |
Crystal-controlled frequency markers (HN) | WA4WDK | 64 | Sep 71 |
Transconductance tester for fets | W6NBI | 44 | Sep 71 |
RTTY monitor scope, solid-state | WB2MPZ | 33 | Oct 71 |
Dynamic transistor tester (HN) | VE7ABK | 65 | Oct 71 |
Capacitance meter, direct reading, for electrolytics | W9DJZ | 14 | Oct 71 |
Swr bridge | WB2ZSH | 55 | Oct 71 |
Frequency calibrator, general coverage | W5UQS | 28 | Dec 71 |
RTTY signal generator | Short circuit | 96 | Dec 71 |
WWV-WWVH, amateur applications for | W3FQJ | 53 | Jan 72 |
Fm deviation measurements | W3FQJ | 52 | Feb 72 |
Crystal checker | W6GXN | 46 | Feb 72 |
Digital readout station accessory, part I | K6KA | 6 | Feb 72 |
Vacuum tubes, testing high-power (HN) | W2OLU | 64 | Mar 72 |
Digital station accessory, part II | K6KA | 50 | Mar 72 |
Ssb, signals, monitoring | W6VFR | 35 | Mar 72 |
Logic monitor (HN) | WA5SAF | 70 | Apr 72 |
Oscillator, frequency measuring | W6IEL | 16 | Apr 72 |
Oscillator, two-tone, for ssb testing | W6GXN | 11 | Apr 72 |
Digital station accessory, part Ill | K6KA | 36 | Apr 72 |
Swr bridge (HN) | WA5TFK | 66 | May 72 |
Coaxial-line loss, measuring with a reflectometer | W2VCI | 50 | May 72 |
Swr meters, direct reading and expanded scale | WA4WDK | 28 | May 72 |
Noise-figure measurements for vhf | WB6NMT | 36 | Jun 72 |
AFSK generator, crystal-controlled | K7BVT | 13 | Jul 72 |
Oscilloscope voltage calibrator | W6PBC | 54 | Aug 72 |
Monitorscope, RTTY | W3CIX | 36 | Aug 72 |
Capacitance meter, direct-reading | W6MUR | 48 | Aug 72 |
Frequency standard (HN) | WA7JIK | 69 | Sep 72 |
Frequency scaler, divide-by-ten | W6PBC | 41 | Sep 72 |
Frequency synthesizer, high-frequency | K2BLA | 16 | Oct 72 |
Impulse generator, pulse-snap diode | Siegal, Turner | 29 | Oct 72 |
Spectrum analyzer, four channel | W9IA | 6 | Oct 72 |
Rf power meter, low-level | W5WGF | 58 | Oct 72 |
Logic monitor (HN) | Correction | 91 | Dec 72 |
Oscillator, frequency measuring | Added notes | 90 | Dec 72 |
Frequency scaler, divide-by-ten | Correction | 90 | Dec 72 |
Swr meters, direct reading and expanded scale | Correction | 90 | Dec 72 |
Counter reset generator (HN) | W3KBM | 68 | Jan 73 |
RTTY test generator (HN) | W3EAG | 67 | Jan 73 |
Sampling network, rf - the milli-tap | W6QJW | 34 | Jan 73 |
Vom/vtvm, added uses for (HN) | W7DI | 67 | Jan 73 |
Bridge, noise, for impedance measurements | YA1GJM | 62 | Jan 73 |
Oscillator, audio | W6GXN | 50 | Feb 73 |
Logic test probe (HN) | Rossman | 56 | Feb 73 |
Pre-scaler, vhf (HN) | W6MGI | 57 | Feb 73 |
AFSK generator, phase-locked loop | K7ZOF | 27 | Mar 73 |
Crystal test oscillator and signal generator | K4EEU | 46 | Mar 73 |
RTTY test generator (HN) | W3EAG | 59 | Mar 73 |
Phase meter, rf | VE2AYU, Korth | 28 | Apr 73 |
Rf detector, sensitive | WB9DNI | 38 | Apr 73 |
WWV receiver, simple regenerative | WA5SNZ | 42 | Apr 73 |
RX impedance bridge, low-cost | W8YFB | 6 | May 73 |
Impedance bridge, low-cost RX | W8YFB | 6 | May 73 |
Digital counters (letter) | W1GGN | 76 | May 73 |
Transistor curve tracer | WA9LCX | 52 | Jul 73 |
Slow-scan tv test generator | K4EEU | 6 | Jul 73 |
Noise generator, 1296-MHz | W3BSV | 46 | Aug 73 |
Swr bridge readings (HN) | W6FPO | 63 | Aug 73 |
l-f sweep generator | K4DHC | 10 | Sep 73 |
Dummy load low-power vhf | WB9DNI | 40 | Sep 73 |
Prescaler, Improvements for | W6PBC | 30 | Oct 73 |
Frequency measurement of received signals | W4AAD | 38 | Oct 73 |
Vhf pre-scaler, improvements for | W6PBC | 30 | Oct 73 |
Power meter, rf | K8EEG | 26 | Oct 73 |
Frequency scaler, divide-by-ten | Added comments (letter) | 64 | Nov 73 |
Logic test probe | VE6RF | 53 | Dec 73 |
Signal generator, wide range | W6GXN | 18 | Dec 73 |
Logic test probe (HN) | Short circuit | 58 | Dec 73 |
Meter interface, high-impedance | Laughlin | 20 | Jan 74 |
Line-voltage monitor (HN) | WA8VFK | 66 | Jan 74 |
Capacitance meter, digital | K4DHC | 20 | Feb 74 |
I-f alignment generator 455-kHz | WA5SNZ | 50 | Feb 74 |
Frequency standard, universal | K4EEU | 40 | Feb 74 |
Capacitance meter, direct-reading | Short circuit | 64 | Mar 74 |
Transistor curve tracer | Short circuit | 63 | Apr 74 |
Frequency standard, universal | Short circuit | 72 | May 74 |
Bridge, noise, for impedance measurements | Added notes | 66 | May 74 |
Noise bridge, antenna (HN) | K8EEG | 71 | May 74 |
Antenna and transmission line measurement techniques | W4OQ | 36 | May 74 |
Spectrum analysers, understanding | WA5SNZ | 50 | Jun 74 |
Function generator, IC | K4DHC | 22 | Jun 74 |
Frequencies, counted (HN) | K6KA | 62 | Aug 74 |
lntermodulation-distortion measurements on ssb transmitters | W6VFR | 34 | Sep 74 |
Peak envelope power, how to measure | W5JJ | 32 | Nov 74 |
Vtvm, convert to an IC voltmeter | K6VCI | 42 | Dec 74 |
Probe, sensitive rf (HN) | W5JJ | 61 | Dec 74 |
Frequency scalers, 1200-MHz | WB9KEY | 38 | Feb 75 |
Ac current monitor (letter) | WB5MAP | 61 | Mar 75 |
Current monitor mod | Letter | 61 | Mar 75 |
Bridge, noise, for impedance measurements | Added notes | 60 | Mar 75 |
Capacitance meter, direct-reading | WA5SNZ | 32 | Apr 75 |
Impedance, measuring with swr bridge | WB4KSS | 46 | May 75 |
Noise figure, vhf, estimating | WA9HUV | 42 | Jun 75 |
Frequency scaler, 500-MHz | W6URH | 32 | Jun 75 |
Milliammeters, how to use | W4PSJ | 48 | Sep 75 |
Capacitance meter, direct-reading | Added note | 31 | Oct 75 |
Frequency scaler, uhf (11C90) | WB9KEY | 50 | Dec 75 |
Frequency counter, 50 MHz, 6 digit | WB2DFA | 18 | Jan 76 |
Prescaler, vhf, for digital frequency counters | K4GOK | 32 | Feb 76 |
WWVB signal processor | W9BTI | 28 | Mar 76 |
Dummy loads | W4MB | 40 | Mar 76 |
L, C, R bridge, universal | W6AOI | 54 | Apr 76 |
Swr meter, improving (HN) | W5NPD | 68 | May 76 |
Swr indicator, aural, for the visually handicapped | K6HTM | 52 | May 76 |
Microwave marker generator, 3cm band (HN) | WA4WDL | 69 | Jun 76 |
Linearity meter for ssb amplifiers | W4MB | 40 | Jun 76 |
Transistor tester, shirt pocket | W0MAY | 40 | Jul 76 |
Base step generator | WB4YDZ | 44 | Jul 76 |
Turn-off timer for portable equipment | W5OXD | 42 | Sep 76 |
Calibrating ac scales on the vtvm, icvm and fet voltmeter | W7KQ | 48 | Sep 76 |
Absorption measurements, using your signal generator for | W2OUX | 79 | Oct 76 |
Meter amplifier, electronic | WA9HUV | 38 | Dec 76 |
Swr indicator, how to use (repair bench) | W6NBI | 66 | Jan 77 |
Diode tester | W6DOB | 46 | Jan 77 |
Q measurement | G3SBA | 49 | Jan 77 |
VSWR indicator, computing | WB9CYY | 58 | Jan 77 |
Frequency counter, CMOS | W2OKO | 22 | Feb 77 |
RX noise bridge, improvements to | W6BXI, W6NKU | 10 | Feb 77 |
Time-base oscillators, improved calibration | WA7LUJ, WA7KMR | 70 | Mar 77 |
Function/units indicator using LED displays | K0FOP | 58 | Mar 77 |
Power meter, rf, how to use (repair bench) | W6NBI | 44 | Apr 77 |
Frequency counter, 50 MHz, 6 digit | Comment | 79 | Apr 77 |
Slotted line, how to use (repair bench) | W6NBI | 58 | May 77 |
Frequency measurement, vhf, with hf receiver and scaler (HN) | W3LB | 90 | May 77 |
VSWR indicator, computing | Short circuit | 94 | May 77 |
Frequency counter, CMOS | Short circuit | 94 | May 77 |
Toroid permeability meter | W6RJO | 46 | Jun 77 |
Gate-dip meter | W3WLX | 42 | Jun 77 |
Spectrum analyzer, dc-100 MHz | W6URH | 16 | Jun 77 |
Test probe accessory (HN) | W2IMB | 89 | Jul 77 |
Continuity bleeper for circuit tracing | G3SBA | 67 | Jul 77 |
Spectrum analyzer for ssb | W3JW | 24 | Jul 77 |
Frequency-rnarker standard using cmos | W4IYB | 44 | Aug 77 |
Resistance values below 1 ohm, measuring | W4OHT | 66 | Sep 77 |
RX noise bridge, improvements to | Comments | 100 | Sep 77 |
Resistance values, measuring below 1 ohm | W4OHT | 66 | Sep 77 |
Frequency counter, how to improve the accuracy of | W1RF | 26 | Oct 77 |
Radio Shack meters, internal resistance | Katzenberger | 94 | Nov 77 |
Spectrum analyzer, dc-100 MHz | Short circuit | 69 | Dec 77 |
Rf wattmeter, accurate low power | WA4ZRP | 38 | Dec 77 |
RTTY test generator | WB9ATW | 64 | Jan 78 |
Resistance values below 1 ohm, measuring (letter) | W1PT | 91 | Jan 78 |
Grid-dip meter, no-cost | W8YFB | 87 | Feb 78 |
Frequency counter, modify for direct counting to 100 MHz | WA1SNG | 26 | Feb 78 |
Capacitance meter | Mathieson, P. H. | 51 | Feb 78 |
Frequency counters, understanding and using | W6NBI | 10 | Feb 78 |
Frequency counter, high-impedance preamp and pulse shaper for | I4YAF | 47 | Feb 78 |
Frequency counter, simplifying | W1WP | 22 | Feb 78 |
Frequency counter, front-ends for a 500-MHz | K4JIU | 30 | Feb 78 |
Testing power tubes | K4IPV | 60 | Apr 78 |
Spectrum analyzer tracking generator | W6URH | 30 | Apr 78 |
Noise bridge calculations with TI 58/59 calculators | WD4GA1 | 45 | May 78 |
Antenna bridge calculations | Anderson, Leonard H. | 34 | May 78 |
Multiplexed counter displays (HN) | K1XX | 87 | May 78 |
Rf current readout, remote (HN) | W4ATE | 87 | May 78 |
Antenna bridge calculations (letter) | W5QJR | 6 | May 78 |
Vhf prescaler | W8CHK | 92 | Jun 78 |
Voltmeter calibrator, precision | Woods, Hubert | 94 | Jun 78 |
Voltage calibrator for digital voltmeters | W6NBI | 66 | Jul 78 |
Spectrum analyzer, microwave | N6TX | 34 | Jul 78 |
Frequency counter, simple (HN) | W2QBR | 81 | Aug 78 |
Noise figure measurements | W6NBI | 40 | Aug 78 |
Tester for 6146 tubes (HN) | W6KNE | 81 | Aug 78 |
TVI locator | W6BD | 24 | Aug 78 |
Automatic noise-figure measurements (Repair Bench) | W6NBI | 40 | Aug 78 |
Prescaler, 1-GHz, for frequency counters | W6NBI | 84 | Sep 78 |
Noise bridge construction (letter) | OH2ZAZ | 8 | Sep 78 |
Meter amplifiers, calibrating | W4OHT | 80 | Sep 78 |
Frequency counters, high-sensitivity preamplifier for | W1CFI | 80 | Oct 78 |
Swr meter | WB6AFT | 68 | Nov 78 |
Capacitance meter, simplified | WA5SNZ | 78 | Nov 78 |
1.5GHz prescaler, divide by 4 | N6JH | 88 | Dec 78 |
Deviation, measuring | N6UE | 20 | Jan 79 |
Spectrum analyzer, dc-100 MHz | Short circuit | 94 | Feb 79 |
Logic probe | K9CW | 83 | Feb 79 |
Voltage calibrator for digital voltmeters | Short circuit | 94 | Feb 79 |
Frequency counter, simplifying | Short circuit | 94 | Feb 79 |
Impedance bridge measurement errors and corrections | K4KJ | 22 | May 79 |
Broadband reflectometer and power meter | VK2ZTB, WB2ZZO | 28 | May 79 |
Swr measuring at high frequencies | DJ2LR | 34 | May 79 |
Diode noise source for receiver noise measurements | W6NBI | 32 | Jun 79 |
Gallon-size dummy load | W4MB | 74 | Jun 79 |
Test-equipment mainframe | W4MB | 52 | Jul 79 |
VSWR bridge, broadband power-tracking | K1ZDI | 72 | Aug 79 |
Dip-meter converter for VLF | W4YOT | 26 | Aug 79 |
Noise figure measurements | Comments, WB5LHV, W6NBI | 6 | Aug 79 |
Frequency counters, uhf and microwave | W6NBI | 34 | Sep 79 |
Frequency counter, miniature | K5WKQ | 34 | Oct 79 |
Capacitance measurements with a frequency counter - Weekender | Moran, John | 62 | Oct 79 |
Wattmeter, low power (letter) | W0DLQ | 6 | Jan 80 |
Wien Bridge oscillators, voltage-controlled resistance for | WA5SNZ | 56 | Feb 80 |
Capacitance meter, (simplified), improvements to | WA3CPH | 54 | Mar 80 |
Frequency counter, K4JIU, modifications for (HN) | K4JIU | 65 | Mar 80 |
Frequency counter, capacitance-measurement accuracy for | W1ZUC | 44 | Apr 80 |
Counter control pulses (HN) | W9LL | 70 | Apr 80 |
Prescaler, 600-Hz, for use with electronic counters | WA1SPI | 50 | Apr 80 |
VSWR and power meter, automatic | W0INK | 34 | May 80 |
VLF dip meter, no-adjust bias for (HN) | WB3IDJ | 69 | Jul 80 |
Logic probe, digital | N6UE | 38 | Aug 80 |
Function generator, integrated circuit | N3FG | 30 | Aug 80 |
Digital capacitance meter | K4GOK | 66 | Aug 80 |
Frequency counter, capacitance-measurement accuracy for | Short circuit | 67 | Sep 80 |
Electrolytic capacitors, measuring capacitance of | KP4DIF | 24 | Sep 80 |
Noise-figure meter, automatic, for preamplifiers and converters | K9IMM | 12 | Feb 81 |
Rf power meter, part 1: instrument description and construction | N6YC | 70 | May 81 |
Rf power meter, part 2: measurements and measurement accessories | N6YC | 55 | Jun 81 |
Sweep generator, stable wideband | W7BAR | 18 | Jun 81 |
Field-strength meter for the high-frequency Amateur bands | WB6AFT | 42 | Jul 81 |
K4EEU frequency standard, battery backup for (HN) | N4BA | 68 | Jul 81 |
Dip meters, a new look at | W6GXN | 25 | Aug 81 |
Light-bulb dummy loads (HN) | W6HPH | 74 | Oct 81 |
Swr meter for the high-frequency bands | WB6AFT | 62 | Oct 81 |
Rf power meter, part 2: measurements and measurement accessories | Comments, W3NQN | 6 | Oct 81 |
Sweep generator, stable wideband | Short circuit | 84 | Nov 81 |
Swr meter for the high-frequency bands | Comments, WA4UPN, WB6AFT | 36 | Mar 82 |
Inductance meter, easy-to-build | W6XM | 76 | Apr 82 |
Two-tone generator | N1RM | 32 | Jun 82 |
Inductance meter, easy-to-build | Comments, WB2LAO | 8 | Sep 82 |
Two-tone signal generator (HN) | K4KI | 77 | Sep 82 |
Inductance meter, easy-to-build | Short circuit | 79 | Oct 82 |
Battery charger sensor | W3BYM | 54 | Dec 82 |
Logic mate | N9CZK | 57 | Jan 83 |
BC221, unusual | VK2ZH | 22 | Jan 83 |
Wide range inductance meter | K9EBA | 52 | Feb 83 |
Wien Bridge oscillators, voltage-controlled Zener diode test circuit | W3PHK | 52 | Feb 83 |
Noise bridge, precision | K2ST | 51 | Mar 83 |
Diode tester (HN) | W2OLU | 90 | Apr 83 |
Capacitive-reactance meter multiplier (HN) | K4KI | 89 | Apr 83 |
Solid-state replacements | AK7N | 46 | Apr 83 |
Video monitor, inexpensive | K8CG | 12 | Apr 83 |
Logic probe (HN) | Rozenthal, J. | 91 | Apr 83 |
Noise bridge, precision | Comments | 8 | Jun 83 |
Using the Astro 103 as a frequency counter (HN) | W4ATE | 69 | Jun 83 |
PEP output power measurement | VK3AFO | 10 | Jun 83 |
Measuring inductances | K6HIK | 85 | Jul 83 |
Impedance matching | WB2NTQ | 85 | Jul 83 |
Measuring small values | W6SDM | 74 | Aug 83 |
Tune-up method, low duty-cycle for transmitters (HN) | K4KI | 62 | Aug 83 |
Noise bridge, precision | Short circuit | 97 | Aug 83 |
Video monitor, inexpensive | Comments, K9TA | 10 | Aug 83 |
Panoramic adaptor spectrum analyzer design notes | WA6NCX/1 | 26 | Sep 83 |
Weather radar, 10-GHZ | K4TWJ | 61 | Sep 83 |
Panoramic adaptor spectrum analyzer design notes | Comments, K2CBY | 12 | Sep 83 |
PEP output power measurement | Comments, K4KYV | 12 | Sep 83 |
Electrical calibration standards | Martin, Vaughn D. | 10 | Oct 83 |
Panoramic adaptor spectrum analyzer design notes | Short circuit | 70 | Oct 83 |
Required dynamic range and design guides for EMI/RFI test receivers | DJ2LR | 70 | Nov 83 |
Time and frequency standards: part1 | Martin, Vaughn D. | 36 | Nov 83 |
Standing wave indicator | GW8FKB | 97 | Nov 83 |
Time and frequency standards: part2 | Martin, Vaughn D. | 31 | Dec 83 |
Tune-up method, low duty-cycle for transmitters (HN) | Comments, W5XW | 11 | Dec 83 |
Measuring noise figure | K2BLA | 26 | Jan 84 |
Tune-up method, low duty-cycle for transmitters (HN) | Comments, K4KI | 11 | Jan 84 |
Ohmmeter, wide-range | Bailey, John T. | 53 | Jan 84 |
EMI/RFI shielding: new techniques part1 | Martin, Vaughn D. | 72 | Jan 84 |
Transmitter tuning aid: buffer your load with this resistive network (weekender) | K4KI | 52 | Feb 84 |
EMI/RFI shielding: new techniques part2 | Martin, Vaughn D. | 85 | Feb 84 |
Microphone calibration | NY6U | 73 | Jun 84 |
QRP wattmeter (HN) | W6XM | 110 | Jul 84 |
Ground rod resistance | K4MT | 95 | Jul 84 |
Ground rod resistance | Comments | 8 | Sep 84 |
VHF/UHF world | W1JR | 55 | Oct 84 |
Frequency counter, "smart" | WA5VQ | 41 | Oct 84 |
L and C measurements | WB6ZLN | 117 | Oct 84 |
Bridge measurements, the half-wave transmission line in (HN) | K4KI | 108 | Nov 84 |
Receiver sweep alignment system | WB6BIH | 124 | Nov 84 |
Tuneup, safe, silent | K4KI | 123 | Dec 84 |
The Guerri report: signal processing | W6MGI | 156 | Dec 84 |
Filter tester, simple (HN) | W6XM | 116 | Dec 84 |
Field strength meter, sensitive | K4KI | 51 | Jan 85 |
Frequency counter, "smart" | Short | 126 | Apr 85 |
IF sweep generator, compact | PA0CX, DJ0SA | 35 | Jun 85 |
Detector, logarithmic, wideband | PA0CX, DJ0SA | 75 | Jul 85 |
Dual wattmeter, 50-500 MHz | WB4EHS | 67 | Jul 85 |
Continuity tester, simple | WD6GMB | 130 | Sep 85 |
Detailed look at probes | Martin, and Davis | 75 | Sep 85 |
Practically speaking | K4IPV | 79 | Dec 85 |
Frequency and level standard | PA0CX | 10 | Jan 86 |
Two-tone signal generator | YB9ATA/WA7AQN | 25 | Feb 86 |
SWR bridges | K2LB | 37 | Mar 86 |
Two-tone signal generator | Short circuit | 45 | Apr 86 |
Wide-range RF power meter | KA8OBL | 24 | Apr 86 |
Practically speaking: using antenna noise bridge | K4IPV | 69 | May 86 |
Practically speaking: using the right multimeter | K4IPV | 95 | Jun 86 |
Frequency and level standard | Comments, WA8LLY | 9 | Jun 86 |
Two-tone signal generator | Short circuit | 36 | Jun 86 |
Practically speaking: using the multimeter | K4IPV | 43 | Jul 86 |
VHF noise bridge | OE2APM/AA3K | 10 | Jul 86 |
Low-cost spectrum analyzer with kilo-buck features | W4UCH | 82 | Sep 86 |
Extended-range VU meter | WB6JNN | 59 | Sep 86 |
Sensitive LF or HF field-strength meter | K1RGO | 67 | Sep 86 |
Deluxe logic probe | M. Wilde | 74 | Jan 87 |
An i-f sweep generator | W2ZUC | 101 | Jan 87 |
Practically speaking: function generator circuits - part2 | K4IPV | 89 | Jan 87 |
2.3GHz prescaler | N6JH | 21 | Jan 87 |
Practically speaking: testing diodes | K4IPV | 65 | Feb 87 |
Practically speaking: building 'the poor man's spectrum analyzer' | K4IPV | 99 | Mar 87 |
Understanding noise figure | Gruchalla, Michael | 89 | Apr 87 |
Practically speaking: build your own time-domain refiectometer | K4IPV | 69 | Jun 87 |
NBS time and frequency survey | NBS | 45 | Jun 87 |
Test DBMs for diode leakage | WB6BIH | 86 | Jun 87 |
Practically speaking: revisiting 'the poor man's spectrum analyzer' | K4IPV | 49 | Sep 87 |
Practically speaking: troubleshooting DC power supplies with an oscilloscope | K4IPV | 57 | Oct 87 |
Practically speaking: using voltage comparators | K4IPV | 49 | Nov 87 |
An rf voltmeter | G4COL | 65 | Nov 87 |
Practically speaking: generating low i-f frequencies | K4IPV | 49 | Dec 87 |
Elmer's notebook: power measurements | W1SL | 100 | Jan 88 |
Ode to older oscilloscopes | KR6A | 69 | Jan 88 |
High-frequency receiver performance | G4OBU | 33 | Feb 88 |
Elmer's notebook: standing wave ratio- what does it mean? | W1SL | 98 | Feb 88 |
HP-IB greatly simplified | Martin, Vaughn D. | 65 | Mar 88 |
Frequency calibration using 60 kHz WWVB | W4ZPS | 45 | Mar 88 |
Practically speaking: using the digital frequency counter- some pitfalls | K4IPV | 47 | Apr 88 |
Multi-featured function generator | WA7IRY | 9 | Apr 88 |
Ham radio techniques: time and frequency station WWVS, minibeam design, etc | W6SAI | 37 | Jun 88 |
Reflected power limiter | K4KI | 63 | Jul 88 |
Simple low-cost comb generator frequency calibrator | Martin, Larry | 78 | Jul 88 |
Add a digital readout to the "poor man's spectrum analyzer" | WA2PZ | 84 | Sep 88 |
Two in one: Trace doubler for CRO, and square wave and pulse generator (HN) | Tseng Liao | 26 | Dec 88 |
Calibrating series-resistance capacitance bridges (HN) | Caron | 27 | Dec 88 |
Build this simple L-C checker | W5FG | 19 | Dec 88 |
High-impedance Rotary Step Attenuator | N2DCH | 24 | Feb 89 |
Practically Speaking: Antenna System Instruments | K4IPV | 82 | Feb 89 |
Practically Speaking: RF Wattmeters and Antenna VSWR Meters | K4IPV | 75 | Mar 89 |
Microfarad Counter,The | PA0CX | 85 | May 89 |
Novel Methods for Measuring Cable Attenuation | OE2APM | 65 | May 89 |
Simple DC Amplifier for Your Meter | W0JF | 10 | Jun 89 |
Elmer's Notebook: Visual Aids- Oscilloscopes | W1SL | 92 | Jun 89 |
Sensitive RF Voltmeter, The Weekender: | N2DCH | 62 | Jul 89 |
Practically Speaking: More Digitally Generated Sawtooth Plus Triangle Waves | K4IPV | 78 | Jul 89 |
Versatile Transistor/Diode Tester | W5JQE & W2YM | 30 | Aug 89 |
Introduction to Waveform Generators- pt 1 | K4IPV | 62 | Sep 89 |
Keeping an Eye on Your Sideband PEP-The Weekender | GW4NAH | 17 | Sep 89 |
Elmer's Notebook: Test Equipment-Easy and Useful | W1SL | 86 | Oct 89 |
Extend Your DVM's Measurement Capabilities | N6YC | 72 | Oct 89 |
Transistor Lead Identification with a DVM | K0GSS | 62 | Oct 89 |
PEP Wattmeter | WA1SPI | 76 | Oct 89 |
Wideband Frequency Analyzer | AA4FB | 9 | Nov 89 |
Elmer's Notebook: Simple Instruments RF Output Monitor | W1SL | 91 | Nov 89 |
Practically Speaking: Test Equipment for Digital Electronics | K4IPV | 76 | Nov 89 |
Q Meters | W3QOM | 49 | Dec 89 |
Introduction to Waveform Generators- pt 2 | K4IPV | 82 | Dec 89 |
Introduction to waveform generators - part 3 | K4IPV | 63 | Jan 90 |
Two in one: trace doubler for CRO, and square wave and pulse generator (HN) | Short circuit | 26 | Jan 90 |
Practically Speaking: review of a low cost commercial spectrum analyzer | K4IPV | 64 | Feb 90 |
LED millivoltmeter (Weekender) | W0JF | 82 | Mar 90 |
Practically Speaking: analog meter movements: how to use them | K4IPV | 68 | Mar 90 |
Practically Speaking: some analog meter applications | K4IPV | 36 | Apr 90 |
Instrumentation series: oscilloscopes | K7OWJ | 49 | Apr 90 |
Digital field strength meter | N4TMI | 30 | May 90 |
Precision crystal frequency checker (Weekender) | N4TMI | 44 | Jun 90 |