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These all smell a little musty or smoky. Ham Radio Magazine, 1970, 6 by 9 inches April, 96 pages, no mailing cover, staples are rusty * Operational Power Supply. Regulated DC supply, low-frequency amplifier, current amplifier with bipolar output-these are just a few uses for this versatile instrument. Richard Factor * Simple Speech Processor for SSB. R. Lee Price * Two-Kilowatt linear for Two Meters. A high-performance stripline amplifier tailored for the Henry Radio 2K power supply. Bob Sutherland * An Electronic Thermometer. A simple but effective instrument that can be built in just a few hours. James Goding * Catalina Wireless 1902. Another glimpse into the early days of radio by an old timer who knew the old timers. Ed Marriner * RF Power Amplifier for 432 MHz. A design featuring resonant-line tank circuits and class C or AB1 operation. James W. Brannin * Direct-Reading Capacitance Meter. An easily built instrument with many uses around your station. Mark King * 24-Hour Digital Electronic Clock. Osburne C. Stafford * Low-Power Dummy Load and RF Wattmeter. An accurate and reliable test instrument that can be built for less than $5. Neil Johnson * Repair Bench: How To Use a Sweep Generator. Larry Allen * An All-Band 10 dB Power Attenuator. This device can be used as a transmitter interstage buffer or for isolation when making antenna VSWR adjustments. Chet Smith * VSWR Alarm Circuits. Here are some additions you can make to your VSWR meter to give aural or visual warning of VSWR changes. John J. Schultz (1970 apr amateur ham radio magazine shortwave technical was posted and is owned by: Tom Hayes) |
thayes@chicagopartsnetwork.com (Tom Hayes) for more information.
