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These all smell a little musty or smoky. Ham Radio Magazine, 1970, 6 by 9 inches June, 96 pages, rusting staples, no mailing cover, cover starting to brown * Gallium Arsenide LED Experiments. Theory and application of light-emitting diodes and photodetectors in communications circuits. Ralph W. Campbell * Modulation Standards for VHF FM. A discussion of modulation circuits and techniques to improve the performance of FM systems. Les Cobb * Solid-State Conversion of the GDO. Circuits for modernizing your grid-dip oscillator to obtain greater flexibility and sensitivity. Peter A. Lovelock * Integrated Audio Filter-Frequency Translator for CW Reception. A sharp audio filter combined with a keyed audio oscillator-using economical ICs. John J. Schultz * RF Power Detecting Devices. What to expect from bolometers, barretters, and thermistors in measurement applications. Bruce Clark * Design Criteria for SSB Phase-Shift Networks. How to minimize network errors for effective sideband suppression-an analysis of Norgaard and Dome circuit. A.I.H. Wade * Electronic Keyer Oscillators. A basic oscillator circuit does double duty as a clock and sidetone generator in this application of ICs. John G. Curtis. * Transistor Frequency Multipliers. Selecting transistor frequency-multiplier circuits for maximum efficiency and output. Frank C. Jones * RTTY Frequency-Shift Meter. This instrument will measure RTTY shift as well as small frequency differences in any audio filter. Jim Golding * Knight-Kit Two-Meter Transceiver. Jim Fisk (please look at our rules and privacy policy) |
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