| Category (CatID) |
Article |
Author |
Page |
Issue |
Available to Buy? |
| vhf and microwave - general(31.1) | Satellite signal polarization | KH6IJ | 6 | Dec 72 | |
| miscellaneous technical(15) | Satellite signal polarization | KH6IJ | 6 | Dec 72 | |
| satellites(24) | Signal polarization, satellite | KH6IJ | 6 | Dec 72 | |
| audio(2) | Speech clippers, rf | G6XN | 12 | Dec 72 | |
| single sideband(26) | Speech clipper, rf, construction | G6XN | 12 | Dec 72 | |
| antennas and transmission lines - high-frequency antennas(1.2) | Simple antennas for 40 and 80 | W5RUB | 16 | Dec 72 | |
| novice reading(16) | Antennas, simple for 80 and 40 meters | W5RUB | 16 | Dec 72 | |
| antennas and transmission lines - high-frequency antennas(1.2) | Sloping dipoles | W5RUB | 19 | Dec 72 | |
| vhf and microwave - antennas(31.2) | Microstrip swr bridge, vhf and uhf | W4CGC | 22 | Dec 72 | |
| antennas and transmission lines - transmission lines(1.6) | Uhf microstrip swr bridge | W4CGC | 22 | Dec 72 | |
| receivers and converters - high-frequency receivers(22.2) | RTTY monitor receiver | K4EEU | 27 | Dec 72 | |
| commercial equipment(3) | Motorola channel elements | WB4NEX | 32 | Dec 72 | |
| fm and repeaters(9) | Motorola channel elements | WB4NEX | 32 | Dec 72 | |
| oscillators(18) | Monitoring oscillator | W2JIO | 36 | Dec 72 | |
| receivers and converters - high-frequency receivers(22.2) | Monitoring oscillator | W2JIO | 36 | Dec 72 | |
| RTTY(23) | Autostart monitor receiver | K4EEU | 37 | Dec 72 | |
| antennas and transmission lines - high-frequency antennas(1.2) | Mobile antenna, helically wound | ZE6JP | 40 | Dec 72 | |
| RTTY(23) | Mainline ST-5 autostart and antispace | K2YAH | 46 | Dec 72 | |
| antennas and transmission lines - high-frequency antennas(1.2) | DX antenna, single-element | W6FHM | 52 | Dec 72 | |
| novice reading(16) | Antenna tuning units | W3FQJ | 58 | Dec 72 | |
| antennas and transmission lines - matching and tuning(1.4) | Antenna tuners | W3FQJ | 58 | Dec 72 | |
| miscellaneous technical(15) | Capacitors, oil-filled (HN) | W2OLU | 66 | Dec 72 | |
| construction techniques(5) | Capacitors, oil-filled (HN) | W2OLU | 66 | Dec 72 | |
| integrated circuits(11) | Ssb detector, IC (HN) | K4ODS | 67 | Dec 72 | |
| single sideband(26) | Detector, ssb, IC (HN) | K4ODS | 67 | Dec 72 | |
| receivers and converters - general(22.1) | Image suppression (HN) | W6NIF | 68 | Dec 72 | |
| construction techniques(5) | Neutralizing tip (HN) | ZE6JP | 69 | Dec 72 | |
| transmitters and power amplifiers - general(29.1) | Neutralizing tip (HN) | ZE6JP | 69 | Dec 72 | |
| oscillators(18) | Quartz crystals (letter) | WB2EGZ | 74 | Dec 72 | |
| operating(17) | Code practice stations (letter) | WB4LXJ | 75 | Dec 72 | |
| receivers and converters - high-frequency receivers(22.2) | Receiver, reciprocating detector | Correction (letter) | 77 | Dec 72 | |
| transmitters and power amplifiers - general(29.1) | Pi-network inductors (letter) | W7IV | 78 | Dec 72 | |
| miscellaneous technical(15) | Pi network inductors (letter) | W7IV | 78 | Dec 72 | |
| oscillators(18) | Oscillator, frequency measuring | Added notes | 90 | Dec 72 | |
| measurements and test equipment(13) | Frequency scaler, divide-by-ten | Correction | 90 | Dec 72 | |
| fm and repeaters(9) | Mobile operation with the Touch-Tone pad | Correction | 90 | Dec 72 | |
| measurements and test equipment(13) | Oscillator, frequency measuring | Added notes | 90 | Dec 72 | |
| measurements and test equipment(13) | Swr meters, direct reading and expanded scale | Correction | 90 | Dec 72 | |
| antennas and transmission lines - high-frequency antennas(1.2) | Ground plane, three-band | Correction | 91 | Dec 72 | |
| integrated circuits(11) | Logic monitor (HN) | Correction | 91 | Dec 72 | |
| measurements and test equipment(13) | Logic monitor (HN) | Correction | 91 | Dec 72 | |
| fm and repeaters(9) | Repeater control with simple timers | Correction | 91 | Dec 72 | |
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