"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 |
|---|---|---|---|
| Drake W-4 directional wattmeter | W1DTY | 86 | Mar 68 |
| James Research oscillator/monitor | W1DTY | 91 | Mar 68 |
| EX crystal and oscillator | WB2EGZ | 60 | Apr 68 |
| Quement circular slide rule | W2DXH | 62 | Apr 68 |
| Swan 120, converting to two meters | K6RIL | 8 | May 68 |
| Heath SB-300, RTTY with | W2ARZ | 76 | Jul 68 |
| Heath CA1, ten-minute timer from (HN) | K8HZ | 74 | Jul 68 |
| Heath HW-100, the new | W1NLB | 64 | Sep 68 |
| James Research permaflex key | W1DTY | 73 | Dec 68 |
| SBE linear amplifier tips (HN) | WA6DCW | 71 | Mar 69 |
| T150A frequency stability (HN) | WB2MCP | 70 | Apr 69 |
| Knight-kit inverter/charger review | W1DTY | 64 | Apr 69 |
| Signal One review | W1NLB | 56 | May 69 |
| Heath HW-100 incremental tuning (HN) | K1GUU | 67 | Jun 69 |
| Swan 350 and 400, RTTY operation (HN) | WB2MIC | 67 | Aug 69 |
| SB301/401, Improved sidetone operation | W1WLZ | 73 | Oct 69 |
| Hallicrafters HT-37, increased sideband suppression | W3CM | 48 | Nov 69 |
| Swan 250, update your (HN) | K8ZHZ | 84 | Dec 69 |
| Heathkit Sixer, spot switch (HN) | WA6FNR | 84 | Dec 69 |
| Collins 51J PTO restoration | W6SAI | 36 | Dec 69 |
| Collins 32S-1 CW modification (HN) | W1DTY | 82 | Dec 69 |
| Heath SB-400 and SB-401, improving alc response in (HN) | WA9FDQ | 71 | Jan 70 |
| Galaxy feedback (HN) | WA5TFK | 71 | Jan 70 |
| Heath SB-100, using an outboard receiver with (HN) | K4GMR | 68 | Feb 70 |
| Collins 75A-4 receiver, improving overload response in | W6ZO | 42 | Apr 70 |
| Knight-kit two-meter transceiver | W1DTY | 62 | Jun 70 |
| Eimac chirp and drift (HN) | W5OZF | 68 | Jun 70 |
| Heath HW-17A, perking up (HN) | HN | 70 | Aug 70 |
| Collins 32S-1 CW modification (HN) | Correction | 76 | Sep 70 |
| Heath HG-10B vfo, independent keying of (HN) | K4BRR | 67 | Sep 70 |
| Collins 75A-4 receiver, improving overload response in | Short circuit | 76 | Sep 70 |
| Motorola voice commander, improving | W0DKU | 70 | Oct 70 |
| Collins 75A-4 modifications (HN) | W4SD | 67 | Jan 71 |
| Heath SB-200 amplifier modifying for the 8873 zero-bias triode | W6UOV | 32 | Jan 71 |
| Motorola P-33 series, improving | WB2AEB | 34 | Feb 71 |
| Comdel speech processor, increasing the versatility of (HN) | W6SAI | 67 | Mar 71 |
| Heathkit, noise limiter for (HN) | W7CKH | 67 | Mar 71 |
| Heath HW-17 modifications (HN) | WA5PWX | 66 | Mar 71 |
| Swan television interference: an effective remedy | W2OUX | 46 | Apr 71 |
| Heath HW-100 tuning knob, loose (HN) | VE3EPY | 68 | Jun 71 |
| CDR AR-22 rotator, fixing a sticky | WA1ABP | 34 | Jun 71 |
| Ten-Tec RX10 communicators receiver | W1NLB | 63 | Jun 71 |
| Swan 350, receiver incremental tuning (HN) | K1KXA | 64 | Jul 71 |
| Motrac Receivers (letter) | K5ZBA | 69 | Jul 71 |
| Motorola fm receiver mods (HN) | VE4RE | 60 | Aug 71 |
| Collins S-line, rf clipper for | K6JYO | 18 | Aug 71 |
| Alliance T-45 rotator Improvement (HN) | WA0VAM | 64 | Sep 71 |
| Heath HW-12 on MARS (HN) | K8AUH | 63 | Sep 71 |
| Collins 32S-3 audio (HN) | K6KA | 64 | Oct 71 |
| Heath SB receivers, RTTY reception with (HN) | K9HVW | 64 | Oct 71 |
| Heath SB-200 amplifier, six-meter conversion | K1RAK | 38 | Nov 71 |
| Yaesu spurious signals (HN) | K6KA | 69 | Dec 71 |
| Mini-mitter II | W6SLO | 72 | Dec 71 |
| Collins S-line, rf clipper for | Correction | 80 | Dec 71 |
| Heath ten-minute timer | K6KA | 75 | Dec 71 |
| Hammarlund HQ215, adding 160-meter coverage | W2GHK | 32 | Jan 72 |
| Collins 75A4 hints (HN) | W6VFR | 68 | Apr 72 |
| Collins S-line spinner knob (HN) | W6VFR | 69 | Apr 72 |
| Alliance rotator improvement (HN) | K6JVE | 68 | May 72 |
| Swan 350 CW monitor (HN) | K1KXA | 63 | Jun 72 |
| Motorola Dispatcher, converting to 12 volts | WB6HXU | 26 | Jul 72 |
| Drake R-4 receiver frequency synthesizer for | W6NBI | 6 | Aug 72 |
| Collins S-line transceiver mod (HN) | W6VFR | 71 | Nov 72 |
| Motorola channel elements | WB4NEX | 32 | Dec 72 |
| Heath HW-100, HW-101, grid-current monitor for | K4MFR | 46 | Feb 73 |
| Heath HW-16, vfo operations for | WB6MZN | 54 | Mar 73 |
| Swan 350 CW monitor (HN) | Correction: letter | 77 | May 73 |
| Heath SB-series crystal control and narrow shift RTTY with (HN) | WA4VYL | 54 | Jun 73 |
| Heath SB-650 using with other receivers | K2BYM | 40 | Jun 73 |
| Motorola receivers, op-amp relay for | W6GDO | 16 | Jul 73 |
| Drake TR-4, using the Shure 401A microphone with (HN) | G3XOM | 68 | Sep 73 |
| Heath HW-101, using with a separate receiver (HN) | WA1MKP | 63 | Oct 73 |
| Drake R-4C, electronic bandpass tuning in | Horner | 58 | Oct 73 |
| Yaesu spurious signals (HN) | Units affected (letter) | 67 | Oct 73 |
| Regency HR-2, narrowbanding | WA8TMP | 44 | Dec 73 |
| Heath HW-16, vfo operations for | Short circuit | 58 | Dec 73 |
| Heath HW-16 keying (HN) | W7DI | 57 | Dec 73 |
| Yaesu sideband switching (HN) | W2MUU | 56 | Dec 73 |
| Spurious causes (HN) | K6KA | 66 | Jan 74 |
| Heath SB-303, 10-MHz coverage for (HN) | W1JE | 61 | Feb 74 |
| Motorola Dispatcher, converting to 12 volts | Short circuit | 64 | Mar 74 |
| Ten-Tec Argonaut, accessory package for | W7BBX | 26 | Apr 74 |
| Telefax transceiver conversion | K0QMR | 16 | Apr 74 |
| Heath HW-202, adding private-line | WA8AWJ | 53 | Jun 74 |
| Collins R390A, improving the product detector | W7DI | 12 | Jul 74 |
| Collins S-line power supply mod (HN) | W6IL | 61 | Jul 74 |
| Heath SB-610 as RTTY monitor scope (HN) | K9HVW | 70 | Sep 74 |
| Drake R-4 receiver frequency synthesizer for | Modification: letter | 74 | Sep 74 |
| Heath HO-10 as RTTY monitor scope (HN) | K9HVW | 70 | Sep 74 |
| Clegg 27B, S-meter for (HN) | WA2YUD | 61 | Nov 74 |
| Heath HW-7 mods, keying and receiver blanking (HN) | WA5KPG | 60 | Dec 74 |
| Heath IM-11 vtvm, convert to IC voltmeter | K6VCI | 42 | Dec 74 |
| Collins 75A4 PTO, making it perform like new | W3AFM | 24 | Dec 74 |
| Heath HM-2102 wattmeter, better balancing (HN) | VE6RF | 56 | Jan 75 |
| Collins 70K-2 PTO, correcting mechanical backlash (HN) | K9WEH | 58 | Feb 75 |
| Heathkit HW-202, fm channel scanner for | W7BZ | 41 | Feb 75 |
| Regency HR-212, channel scanner for | WA0SJK | 28 | Mar 75 |
| Standard 826M, more power from (HN) | WB6KVF | 68 | Apr 75 |
| Cornell-Dubilier rotators (HN) | K6KA | 82 | May 75 |
| Heath SB-102 modifications (HN) | W2CNQ | 58 | Jun 75 |
| Collins S-line, reducing warm-up drift | W6VFR | 46 | Jun 75 |
| Heath SB-102, rf speech processor for | W6IVI | 38 | Jun 75 |
| Collins receivers, 300-Hz crystal filter for | W1DTY | 58 | Sep 75 |
| Collins 75A4 avc mod (letter) | W9KNI | 63 | Sep 75 |
| Heath HM-2102 wattmeter mode (letter) | K3VNR | 64 | Sep 75 |
| 300-Hz crystal filter for Collins receivers | W1DTY | 58 | Sep 75 |
| Collins R390A modifications | WA2SUT | 58 | Nov 75 |
| Yaesu FT101 clarifier (letter) | K1NUN | 55 | Nov 75 |
| Collins 75A4, increased selectivity for (HN) | W1DTY | 62 | Nov 75 |
| Kenwood TS-520 CW filter modification(HN) | W7ZZ | 21 | Nov 75 |
| Collins 75S frequency synthesizer | W6NBI | 8 | Dec 75 |
| Heath HM-2102 vhf wattmeter, high power calibration for (HN) | W9TKR | 70 | Feb 76 |
| Heath HW-202, another look at the fm channel scanner for | K7PYS | 68 | Mar 76 |
| Mini-mitter II modifications (HN) | K1ETU | 64 | Apr 76 |
| Collins 75A4 noise limiter | W1DTY | 43 | Apr 76 |
| R-392 receiver mods (HN) | KH6FOX | 65 | Apr 76 |
| Ham-M modification (HN) | W2TQK | 72 | May 76 |
| Collins S-line, improved frequency readout for the | W1GFC | 53 | Jun 76 |
| Collins S-line receivers, improved selectivity | W6FR | 36 | Jun 76 |
| Regency HA transceivers, signal-peaking indicator and generator for (HN) | W8HVG | 68 | Jun 76 |
| Ten-Tec KR-20 keyer, stabilization of (HN) | W3CRG | 69 | Jul 76 |
| Collins KWM-2/KWM-2A modifications (HN) | W6SAI | 80 | Aug 76 |
| Heath SB-102, receiver incremental tuning for (HN) | K1KXA | 81 | Aug 76 |
| Collins R390 rf transformers, repairing (HN) | WA2SUT | 81 | Aug 76 |
| Heath HW-202 lamp replacement (HN) | W5UNF | 83 | Sep 76 |
| ICOM IC-230, adding splinter channels (HN) | WA1OJX | 82 | Sep 76 |
| Swan 250 Carrier suppression (HN) | WB8LGA | 79 | Oct 76 |
| Collins 75S frequency synthesizer | Short circuit | 85 | Oct 76 |
| Heath SB-102, WWV on (HN) | K1KXA | 78 | Jan 77 |
| Drake gear, simple tune-up (HN) | W7DIM | 79 | Jan 77 |
| Kenwood TS-520, TVI cure for (HN) | W3FUN | 78 | Jan 77 |
| Collins 75S-series crystal adapter (HN) | K1KXA | 72 | Feb 77 |
| ICOM-22A wiring change (HN) | K1KXA | 73 | Feb 77 |
| Collins 70E12 PTO repair (HN) | W6BIH | 72 | Feb 77 |
| Heathkit SB-series equipment, heterodyne crystal switching (HN) | K1KXA | 78 | Mar 77 |
| Genave transceivers, S-meter for (HN) | K9OXX | 80 | Mar 77 |
| Heath SB-102 modifications (HN) | W2CNQ | 79 | Mar 77 |
| ICs, drilling template for (HN) | WA4WDL, WB4LJM | 78 | Mar 77 |
| Heath SB-102 modifications (HN) | W2CNQ | 78 | Mar 77 |
| Ham-M rotator automatic position control | WB6GNM | 42 | May 77 |
| Heath intrusion alarm (HN) | Rossman | 81 | Jun 77 |
| Collins KWM2 transceivers, improved reliability (HN) | W6SAI | 81 | Jun 77 |
| Collins R392, improved ssb reception with (HN) | VE3LF | 88 | Jul 77 |
| Heath HW-16, low-impedance headphones for (HN) | WN8WJR | 88 | Jul 77 |
| Collins R-388(51J), inter-band calibration stability (HN) | W5OZF | 95 | Sep 77 |
| Heath SB-102 headphone operation (HN) | K1KXA | 87 | Oct 77 |
| Collins S-line, syllabic vox system for | W0IP | 29 | Oct 77 |
| Heath SB-200 CW modification | K6YB | 99 | Nov 77 |
| Collins 32S-series ALC meter improvement (HN) | W8FR | 100 | Nov 77 |
| Atlas 180, improved vfo stability (HN) | K6KLO | 73 | Dec 77 |
| National NCL-2000, using the Drake T-4XC (HN) | K5ER | 94 | Jan 78 |
| 300-Hz crystal filter for Collins receivers (letter) | G3UFZ | 90 | Jan 78 |
| Collins 51J, modifying for ssb reception | W6SAI | 66 | Feb 78 |
| Heath SB-102 modifications (letter) | W1JE | 110 | Mar 78 |
| Hy-Gain 400 rotator, improved indicator system for | W4PSJ | 60 | May 78 |
| Heath HD-1982 Micoder for low-impedance operation | Johnson, Wesley | 86 | May 78 |
| Micro Mart RM terminal modification (HN) | WA5VQK | 99 | Jun 78 |
| Feedline loss, calculating with a single measurement at the transmitter (HN) | K9MM | 96 | Jun 78 |
| Cleanup tips for amateur equipment (HN) | Fisher | 49 | Jun 78 |
| Heath HW-2036, Lever action switch illumination (HN) | W2IFR | 99 | Jul 78 |
| HP-35 calculator, keyboard cleaning (HN) | Anderson, Leonard H. | 40 | Jul 78 |
| Heath HW-2036, outboard LED frequency display | WB8TJL | 50 | Jul 78 |
| Henry 2K4 and 3KA linears, electronic bias switching | W1CBY | 75 | Aug 78 |
| Heath Micoder matching (letter) | WB8VUN | 8 | Sep 78 |
| Kenwood TR7500, preprogrammed (HN) | W9KNI | 95 | Oct 78 |
| Swan 160X birdie suppression (HN) | W6SAI | 36 | Oct 78 |
| Collins 51J product detector (letter) | K5CE | 6 | Oct 78 |
| Collins 75S receiver, (HN) | N1FB | 94 | Oct 78 |
| Drake R-4C, new product detector for (HN) | WB0JGP | 94 | Oct 78 |
| Heath Micoder improvements | W1OLP | 42 | Nov 78 |
| Heath HD-10 keyer, positive lead keying (HN) | W4VAF | 88 | Nov 78 |
| Heath HWA-2036-3 crowbar circuit (HN) | W3HCE | 88 | Nov 78 |
| Drake R-4C, cleaner audio for (HN) | K1FO | 88 | Nov 78 |
| Measurements Corporation 59 grid-dip oscillator improvements | W6GXN | 82 | Nov 78 |
| Heath HR-2B external speaker and tonepad (HN) | N1FB | 89 | Nov 78 |
| Collins 32S-1, updating | N1FB | 76 | Dec 78 |
| Drake T-4X transmitters, improved tuning on 160 meters (HN) | W1IBI, W1HZH | 81 | Jan 79 |
| Heath HW-2036 antenna socket (HN) | W3HCE | 80 | Jan 79 |
| Ham-3 rotator, digital readout for | K1DG | 56 | Jan 79 |
| Collins 516F-2 solid-state rectifiers (HN) | N1FB | 91 | Feb 79 |
| Hallicrafters HT-37, improving | W8NIF | 78 | Feb 79 |
| Heath HW-2036, updating to the HW-2036A | WB6TMH, WA6ODR | 62 | Mar 79 |
| Collins 75S CW sidetone (HN) | N1FB | 93 | Apr 79 |
| Drake R-4C, new audio amplifier for | WB0JGP, K8RRH | 48 | Apr 79 |
| Drake R-4B and TR-4, split-frequency operation | WB8JCQ | 66 | Apr 79 |
| ICOM IC-22S, using below 146 MHz (HN) | W1IBI | 92 | Apr 79 |
| Collins 32S, improved stability for (HN) | N1FB | 83 | May 79 |
| Autek filter (HN) | K6EVO, WA6WZQ | 83 | May 79 |
| Drake R4C backlash, cure for (HN) | W3CVS | 82 | May 79 |
| Ham-M rotator torque loss (HN) | W1JR | 85 | Jun 79 |
| Collins 516F-2 high-voltage regulation (HN) | N1FB | 85 | Jun 79 |
| Heathkit HW-8, increased break-in delay (HN) | K6YB | 84 | Jun 79 |
| Heath HW-101 sidetone control (HN) | AD9M | 79 | Jul 79 |
| Johnson Matchbox, improved | K4IHV | 45 | Jul 79 |
| Collins S-line monitoring (HN) | N1FB | 78 | Aug 79 |
| Heathkit Micoder adapted to low-impedance input (HN) | WB2GXF | 78 | Aug 79 |
| Swan 350, curing frequency drift | WA6IPH | 42 | Aug 79 |
| Yaesu FT-227R memorizer, improved memory (HN) | WA2DHF | 79 | Aug 79 |
| Ham-M rotator torque loss (HN) | Short circuit | 92 | Sep 79 |
| Collins KWM-2, updating | W6SAI | 48 | Sep 79 |
| Johnson Matchbox, improved | Short circuit | 92 | Sep 79 |
| Drake TR-22C sensitivity improvement (HN) | K7OR | 78 | Oct 79 |
| Collins S-line backup power supply (HN) | N1FB | 78 | Oct 79 |
| Ten-Tec Horizon/2 audio modification (HN) | WB9RKN | 79 | Oct 79 |
| Collins 32S cooling (HN) | N1FB | 74 | Nov 79 |
| Wilson Mark II and IV, modifications to (HN) | W9EPT | 89 | Jan 80 |
| Amateur Radio equipment survey number two | W1SL | 52 | Jan 80 |
| TS-820/TS-820S, reducing interference in (HN) | W4MB | 88 | Jan 80 |
| Ten-Tec Omni-D, improved CW agc for (HN) | W6OA | 88 | Jan 80 |
| Heath HW-2036, carrier-operated relay for | WD5HYO | 58 | Feb 80 |
| Collins 32S PA disable jacks | N1FB | 65 | Mar 80 |
| Drake R-4C product detector, improving (HN) | W3CVS | 64 | Mar 80 |
| TS-820 filter switching modification (HN) | K7OAK | 72 | Jun 80 |
| Factory service (letter) | W6HK | 6 | Jul 80 |
| Ni-cad battery charging (letter) | W6NRM | 6 | Jul 80 |
| Kenwood TS-520-SE transceiver, counter mixer for | W5NPD | 60 | Sep 80 |
| Ham-M rotator control box, modifications of (HN) | K4DLA/W1RDR | 68 | Nov 80 |
| Heathkit HW-2036, updating the | WA4BZP | 50 | Nov 80 |
| SB-220 transceiver, inrush current protection for - Weekender | W3GYM | 66 | Dec 80 |
| Collins 75S-3 alignment (HN) | N1FB | 79 | Jan 81 |
| Kenwood TR-7400A, scanner for (the Kenscan 74) | WB7QYB | 50 | Jan 81 |
| CDE tailtwister rotor, pulse-position control of | WE4EXW | 30 | Jan 81 |
| Drake R-4C receiver audio Improvements (HN) | W3CVS | 79 | Jan 81 |
| KLM antenna rotor, computer control for (HN) | W8MQW | 66 | Feb 81 |
| Drake TR-7 transceiver, Woodpecker noise blanker for (HN) | K1KSY | 67 | Feb 81 |
| Collins KWM-2 KWM-2A, owners' reports | WB1CHQ | 22 | Mar 81 |
| Heathkit SB-104A, Improved receiver performance for | N2EO | 78 | Apr 81 |
| Collins S-line, owners' report | WB1CHQ | 12 | Apr 81 |
| Collins 516F-2 power supply, transient protection for | W6AD | 31 | Apr 81 |
| DenTron 160XV transverter, stabilizing the (Weekender) | WB2QLL | 46 | Jun 81 |
| Heath SE-400/SB-401, simple speech amplifier for (HN) | W8LMH | 72 | Jun 81 |
| Collins 516F-2 low-voltage and bias modification (HN) | N1FB | 68 | Jul 81 |
| FT-101E, 10-meter preamp for | K1NYK | 26 | Jul 81 |
| ICOM 701 owners' report | WB1CHQ | 56 | Oct 81 |
| Owners' survey, TR7 | WB1CHQ | 66 | Nov 81 |
| S-line, QSK noise (HN) | N1FB | 66 | Mar 82 |
| Atlas 210 transceiver, sldetone (HN) | ZL2RP | 67 | Mar 82 |
| Atlas 350 AGC circuit, modifications (HN) | K0RL | 42 | May 82 |
| SB-303 receiver, noise reduction (HN) | Suzuki | 70 | Jun 82 |
| ICOM IC-2A(T), odd splits | N7AAD | 65 | Jul 82 |
| Owners survey: 2-meter handhelds | KA1ZM | 35 | Jul 82 |
| Sony ICF-2001, eight-channel memory scanner for | W3CSW | 54 | Aug 82 |
| Heath HW-8, improved keying for (HN) | W3HVK | 60 | Aug 82 |
| R-1000 mod (HN) | W6XM | 60 | Aug 82 |
| Heath Model IO-4530 oscilloscope, modifications | Bailey | 20 | Aug 82 |
| Atlas 210 transceiver, sldetone (HN) | Short circuit | 79 | Oct 82 |
| 5CX1500A power pentode (HN) | K9XI | 77 | Oct 82 |
| 3-500Z tube failure (HN) | AG6K | 78 | Oct 82 |
| Heath's new all-band transceiver, the SS-MW | W9JUV | 12 | Nov 82 |
| Triton IV, 30-meter operation (HN) | AA4LL | 68 | Jun 83 |
| IC2AT, carrying case for (HN) | W6XM | 62 | Aug 83 |
| Heath HX-1681 | W2UWO | 83 | Sep 83 |
| Ten-Tec Corsair modification (HN) | N3BEK | 62 | Apr 84 |
| Ham radio techniques | W6SAI | 63 | May 84 |
| TS-430S IF filter mod (HN) | KB0CY | 125 | May 84 |
| Ham radio techniques, fifty years ago | W6SAI | 58 | Jun 84 |
| KWM2, RIT for the (HN) | KH6JF | 109 | Jul 84 |
| Argonaut 509 conversion for 30 meters (HN) | AA4LL | 49 | Oct 84 |
| Practically speaking: now that the warranty has expired | K4IPV | 67 | Sep 85 |
| TR-2500/2600 2-channel programming (HN) | K9MLD | 128 | Oct 85 |
| TS-930S headset audio, increased undistorted (HN) | W6FR | 128 | Oct 85 |
| Practically speaking: now that the warranty has expired | Comments, W5QJM | 8 | Nov 85 |
| Improving the audio on the ICOM IC-27 | KD8KZ | 29 | Jan 86 |
| Modifying the Yaesu FT-301 for 30-meter coverage | AF9Q | 42 | Mar 86 |
| Modifying the Trio-Kenwood TS930S | WB9BXT | 67 | Apr 86 |
| Computer control of ICOM R-71, 271, 471, and 751 radios | NG6Q | 47 | Apr 86 |
| Extending receive coverage for the IC-02 and IC-04 | WB6GTM | 77 | Jul 86 |
| Using an RTTY terminal unit with the Heathkit HD4040 TNC | AA8V | 59 | Aug 86 |
| Annunciator bell for the Kantronics KPC2 | K1ZJH | 22 | Aug 86 |
| Simple IC-735 to C-64 interface | N7ICW | 39 | Mar 87 |
| Simple modifications and adjustments for the TS-930S | W6FR | 19 | Apr 87 |
| Extending receive coverage for the IC-02 and IC-04 | Comments: WB6GTM | 6 | May 87 |
| C-64 and GLB PK-1 interface circuit | W2EHD | 87 | May 87 |
| Kudos for Kantronics | Comments: WB3EXR | 6 | Jun 87 |
| Improved gain distribution for the Yaesu FT-726R | K1ZJH | 53 | Jul 87 |
| RDF, An improved | K0OV | 67 | Jul 87 |
| Ham Radio Techniques: "white noise" revisited | W6SAI | 79 | Oct 87 |
| Thumbwheel frequency selector for the Yaesu FT-757GX | KA9SNF | 33 | Nov 87 |
| CAT control system for the Yaesu FT-757GX | SM6CPI | 26 | Nov 87 |
| Technology of commercial television part 2: hardware | KL7AJ | 54 | Jan 88 |
| ICOM's newest transceiver | N1ACH | 17 | Mar 88 |
| More optional notes on the TS-930S | W6FR | 23 | Apr 88 |
| More fixes for the IC22S VHF radio | VE6ZS | 91 | Oct 88 |
| An improved AGC Circuit | W8WFH | 72 | Sep 89 |
| An Exclusive Look At Kenwood's TS-950S | NXIG | 28 | Oct 89 |
| Updating the Viking MB-VA antenna tuner (HN) | VE7GWO | 43 | Mar 90 |
| Kenwood TS-530S, more RIT/XIT for the (HN) | WB4EHS | 58 | Apr 90 |