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The MFJ-9320 QRP transceiver covers a busy part of 20-meter CW: ~14.050 to ~14.060 MHz. This one was generously donated to 73RR. Here are some of the CW rig’s specs, as noted by MFJ:
- 0.2 uV receiver sensitivity for weak signal work
- Sharp passband crystal receive filtering
- Differential-mode AGC: Audio output holds rock-steady over 80 dB signal range
- RF output rated by MFJ at 2 watts with 12-15VDC applied
- Seamless QSK (break-in keying)
- Loud side-tone CW monitor
- User adjustable TX offset/RX passband center
Click here to download the 9320 manual.
This MFJ-816 QRP/QRO HF SWR-Wattmeter was manufactured by MFJ Enterprises decades ago. Its look is old school; not much like MFJ products today. It is a perfect companion for antenna tuners that don't have SWR and power output reading ability. The '816 covers 1.8 to 30 MHz, showing Forward and Reflected power and SWR. Its front panel push button toggles the unit between FWD/SET and REF/SWR via a classic MFJ meter. It will handle up to 300 watts, but is also calibrated on a 30-watt scale. Standard SO-239 coax connectors are on the back. A copy of the original instruction sheet is included. It has been thoroughly tested and performs beautifully.
We are fortunate to have come across a first edition copy of "QRP Power," the 1996 ARRL compilation of more than two dozen QRP articles from League publications including QST, QEX and The ARRL Handbook. It is described as "a transition from the QRP renaissance period into the 21st Century . . . Contributors to this work are some of the best (low power) operators on the planet. The circuits and kits presented in this book reflect a dramatic change from the direct-conversion rigs of the past to more technically superior designs." Accompanying photographs show the full index of articles. Except for some slight cover ware, this book is in like-new condition.
If you look back at the dawn of the highly-respected Morse instrument manufacturer American Morse Equipment, you're bound to run across the KE6RIE Straight Key. Now W6AME, Doug Hauff produced this high-quality straight key dating back 20+ years. The key here is brand new, never used and in pristine condition. "We use modern CNC equipment to produce products of the highest quality and precision," he writes on AME's Web page. "Since our first offering in 1996, everything we make has carried the same guarantee, unparalleled in the industry: Unconditional Lifetime Guarantee. If our product breaks, or you break it, return it to us and we will repair or replace as necessary, for the life of the product. The key is easily adjustable.
Two titans of antenna theory and practice teamed to write “All About Vertical Antennas” – Bill Orr, W6SAI (SK), and Stuart Cowan, W2LX (SK), covering the antenna’s designs, construction, optimization for DX work, verticals for small spaces, grounding, short verticals for 40 through 160 meters, and more. There is information on how to build 25 types of antennas. An accompanying photograph shows the book’s Table of Contents, outlining information in its 8 chapters. There is a comprehensive Index at the back of the book for easy reference to specific subject citations by page. The cover has a very slight blemish. The binding appears never to have been broken. There are light red marks (felt tip) on pages opposite the binding. 191 pages, copyright 1988.
This unbuilt Wilderness 40-meter SST (Super Simple Transceiver) kit was designed and introduced by Wayne Burdick, N6KR, now of Elecraft. It is a superheterodyne VXO-controlled radio. It is CW-only with satin smooth QSK and capable of up to two-watts RF output. There is plenty of audio to comfortably drive 8-ohm headphones. As far as we can tell, the SST kit is no longer available anywhere – another rare find for 73RR. The kit’s parts are top quality, as shown in the accompanying photographs. Wilderness' price was $90. The manual includes information on converting the SST kit to 40 or 30 meters, as well.
Here is a great gift idea or radio club giveaway: "Whether you're just getting turned on to ham radio or already have your license, 'Ham Radio for Dummies,' 2nd Edition, helps you with the terminology, the technology, and the talknology," writes renowned radio operator H. Ward Silver, NØAX. "This hands-on beginner guide reflects the operational and technical changes to amateur radio over the past decade and provides you with updated licensing requirements and information, changes in digital communication (such as the Internet, social media, and GPS), and how to use e-mail via radio." Copyright 2013, it is in like-new condition. HRFD is a great beginner’s entree to amateur radio.
This version of the famous Rockmite QRPp transceiver is somewhat rare. The transceiver first appeared in the April 2003 edition of QST magazine. This is one of the originals. Click here to see Dave Benson, K1SWL's, article. Jackson Harbor Press offered an add-on keyer, which has been integrated into this rig. It adds remarkable versatility to the Rockmite. To see the Jackson Harbor Press RMK Keyer manual, click here. A multi-function front-panel push button changes the CW offset, and provides access to both the functions and programming of the RMK keyer. The left front-panel control adjusts volume. The right one is for adjusting keyer speed. The radio is crystal controlled and has been tested. Knobs and back panel labels are the operator's option. Back panel from left: Antenna, Keyer Paddle, Headphones, B+ DC. It is rated to put out 500mW at 13.8 VDC.
This unbuilt, very early version of the NorCal BLT (Balanced Line Tuner) kit is a Z-Match tuner for 10-40 meters. It was introduced in 2000. It will easily handle 5W RF and comes with a built-in N7VE LED SWR indicator that is switched in and out via a front-panel toggle. It uses polyvaricon tuning capacitors. It includes a NorCal modification so it works with end-fed and coaxial-fed antennas. HIGH or LOW-Z inductances are selected by a back-panel toggle switch. It features a clear-plastic top. The enclosure is made using pre-cut pieces of PCB board. Complete assembly and operation instructions are included. It was designed by antenna tuner guru Prof. Charles Lofgren, W6JJZ.
DJ9ZB's DX World Guide is widely regarded as one of the finest DX reference guides in the world. Published in 2012, it covers prefixes from 1A to ZS8 presented on colorful pages with information including UTC offset, continent, IOTA designations, the size of the country's land area, capital, latitude and longitude, and more. Most entries include both WAZ and ITU zone designations. A map shows each country's world location. There are samples of QSLs, radio clubs and links to Web pages with contact information, radio authorities and so on. It is 360 pages and in perfect condition.
The Radio & Electronics Cookbook is a 2001 publication of the Radio Society of Great Britain, edited by Dr. George Brown, M5ACN, and 319 pages in length. Accompanying photographs show its table of contents, which draws on "the massive enthusiasm and design know-how of the RSGB." This book is for the beginning homebrewer, "with clear step-by-step (project) instructions and numerous illustrations." In many cases, the solid state components will need to be converted to U.S. designations. A good online component converter is at: http://www.nteinc.com.There are features explaining many of the electronic concepts involved. It is in perfect condition. Today, the RE Cookbook retails for $39.32 in several online stores. It is offered here at a tremendous discount and with free shipping.
To our surprise, we found the loading coil from a W6MMA St. Louis Vertical. It is in perfect condition - never used - and is top quality in its construction. There have been occasional general requests for this item, and we are really happy to bring one to 73 Radio Row.
The Arizona QRP Club’s Black Widow Paddle was designed and produced by Jerry Haigwood, W5JH, and became a very popular kit in the Morse community about a decade ago. No longer in production, 73 Radio Row has found one that – with a thorough cleaning and reassembly – looks and works like brand new. It is made of brass with a 3 inch x 3-inch base. It uses computer-controlled machined parts for excellent fit and accuracy. It has both spring and magnetic return force. Its arms ride on precision ball bearings. The contacts are silver plated for low resistance. Bearing tension, contact spacing, and magnetic return force are all adjustable. Click here to see the manual.
The ARRL’s Portable Antenna Classics was published in 2015 and features “Thirty antennas to get you on the air from anywhere!” Accompanying photographs show the book’s Table of Contents to give you a look at what’s inside. All of the articles in its 118 pages appear to be reprints from ARRL publications. Writers include well-known experts Joe Everhart, N2CX; Phil Salas, AD5X; Robert Capon, WA3ULH; Markus Hansen, VE7CA; Doug DeMaw, W1FB; Zack Lau, KH6CP/1, and many more. This book features antennas for 80 through 10 meters (including WARC) on HF and 6- and 2-meters and 70cm on VHF. A variety of antenna supports and vehicle mounts are featured, as well. It is in excellent condition. Perfect for T-FR radio operators.