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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. July, 118 pages, 8.25 by 11 inches, staples rusting, corners bumped, no mailing cover * 1296-MHz Transverter. Complete construction details for a simple, inexpensive transverter for SSB and CW that will make a noticeable dent on the 1296 amateur band. Joe M. Cadwallader * Improved CW Transceiver for 40 and 80. Update of a circuit previously presented in Ham Radio-a complete break-in and electronic-keyer circuit have been added to make a truly effective station for traffic and contest work. Clifford J. Bader * High-Resolution Spectrum Analyzer for Single Sideband. All you need is an oscilloscope and the simple circuits described here to display quantitative information about SSB transmitter. Jeff Walker * Rat-Race Balanced Mixer for 1296 MHz. Details for an easily built mixer for the 1296-MHz amateur band which can be used in both receiving and transmitting applications. H. Paul Shuch * Self-Supporting Coils. A set of inductance and Q graphs for airwound coils using screws and other threaded forms as mandrels. Leonard H. Anderson * Gain Control IC for Audio Signal Processing. As a multi-purposed IC, the NE570 analog compandor fulfills many audio processing needs. Walter G. Jung * High Dynamic Range Two-Meter Converter. Circuit details for a 2-meter converter with a +15 dBM intercept point and 5 dB noise figure. Ulrich Rohde * Caption Device for Slow-Scan Television. An easy way to dress up your video with professional-appearing captions. M. Allenden * Continuity Bleeper for Circuit Tracing. The four comparator amplifiers in the Motorola MC3302P IC are put to work in this circuit tester. R. C. Marshall * Repair Bench: Simple Antenna Instrumentation. Joe Carr * Sync Generator for a Black-and-White 525-Line Television System. The National MM5320 IC is featured in this inexpensive circuit. Bert Kelley * Microprocessors: Microcomputer Interfacing-Logical Instructions. Jonathan Titus, David G. Larsen and Peter R. Rony (please look at our rules and privacy policy) |
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