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These all smell a little musty or smoky. I haven't typed all the small articles, columns or the reviews without schematics. June, 96 pages, 6 by 9 inches, rusting staples, mailing cover is browning at edges, top and bottom of spine are bumped * Digital RTTY Autostart. An automatic printer control that can be used with popular demodulators without disturbing existing circuits. Bert Kelley * A Complete Audio Module. This audio module includes an active filter, preamplifier, audio compressor and power output stage. Ray Megirian * FM Repeater Installation. Suggestions on dealing with setup and control problems. George R. Allen * Regulated AC Power Supply for Mobile FM Equipment. This low-cost regulated power supply provides a convenient way of powering your mobile VHF FM equipment at your home station. Paul J. Dobosz * Micropower Communications Receiver. This high-performance solid-state 20-meter receiver requires less than 80 milliwatts of power. Michael J. Gordon, Jr. * High-Performance Broadband IC Amplifiers. Construction details for two broadband IC amplifiers which provide up to 40-dB gain over the frequency range from 1 to 56 MHz. Hank Olson * Using the Heath SB-650 Frequency Display with Other Receivers. Complete details on modifying the popular SB-650 for use with the Allied SX-190 and other receivers. Marvin R. Clinch * Logic Oscillator for Multi-Channel Crystal Control on VHF FM. Using digital TTL ICs in a logic oscillator to provide a bank of selectable crystal frequencies. Stirling Olberg * Solid-State Bug. An improved version of the semi-automatic key using the principles of the solid-state switch. Arthur J. Glazer (please look at our rules and privacy policy) |
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