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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. October, 112 pages, 6 by 9 inches, rusting staples, edges of mailing cover turning yellow, spine bumped at top * Low-Cost Electronic Keyer with Random-Access Memory. Circuit details of an electronic keyer with a 512-bit random-access memory that costs less than $40. Michael J. Gordon, Jr. * Continuous-Phase Audio-Shift Keyer for RTTY. Circuit details for an audio-frequency shift keyer which introduces no phase disruptions when switching from mark to space, or vice versa. Eric Kirchner * Multi-Function Touch-Tone Decoder. Complete construction details for a solid-state, multi-function Touch-Tone decoder using latching relays. Robert Heptig * Two-Band Antenna Matching with Stubs. Complete design details for an antenna stub matching system for two harmonically-related amateur bands. Bill Johnson * Simple and Accurate RF Power Meter. A useful device for measuring transmitter power output. Adrian Weiss * Circuit Improvements for the Advanced Frequency Scaler. Several advanced circuit improvements for the VHF divide-by-ten frequency scaler previously described in ham radio. F. Everett Emerson * Improved Half-Wave Rectifier. Circuit details of an improved half-wave, choke-input power supply circuit that offers several advantages over conventional circuits. John T. Bailey * Accurate Frequency Measurement of Received Signals. How to use an offset frequency measurement system that does not impair the performance of your receiver. Jeff Walker * Electronic Bandpass Tuning in the New Drake R4C. The new Drake R4C amateur receiver uses a long-neglected technique to provide a simple system for electronic bandpass tuning. D. H. Horner (1973 oct amateur ham radio magazine shortwave technical was posted and is owned by: Julia Schneider) |
J.schneider@chicagopartsnetwork.com (Julia Schneider) for more information.
