Page 1 of Amateur Radio Gear by Ramsey Electronics

52 Build It, Learn it, Achieve It, Enjoy It! Fun Electronics...Now in our 34th Year! Shop online at www.ramseykits.com Call Toll Free 800-446-2295 AMATEUR RADIO GEAR These little rigs are burning up the airwaves as young and old alike are rediscovering the fun in building their own equipment! Our detailed, step-by-step instruction manuals make building an enjoyable and rewarding experience. You re guided carefully to the completion of a unit that not only works, but will provide hours of operating pleasure. These trusted and proven Ramsey all-mode mini rigs are routinely used worldwide by Hams of all ages. You ll find you dont need high power K71RK worked and QSLd all states, plus global DX QSOs from Argentina to the former USSR with only 2 mW! You dont need hundreds of watts, thousands of dollars or massive equipment; you ll find its more fun with less! These little receivers are based upon the SA-602 that we read about in Ham magazines and handbooks. Available in 20 meter, 30 meter, and 40 meter versions, the receivers are true superheterodyne direct conversion a simple design that does not require the use of fancy IFs, RF filters, or exotic mixers; in short, the ideal design for easy hobby building. Only recently have high performance ICs become available that enable such circuitry to be constructed. Beginners can easily build these receivers. And, experienced amateurs and QRP enthusiasts can use them as a reliable, economical, basic foundation for modifications. Our single PC board has plenty of room for lots of modifications and hook-ups tinker to your hearts delight. Suggestions and technical info are included in every receiver manual. Isnt this what Ham radio is all about? Operates on 9 V battery (not included). Included case measures 5 W x 1 H x 5 D . QRP Mini-Receivers 4 Sensitivity of approximately one microvolt rivals the big rigs! 4 Covers 500 KHz of selected band 4 Receives CW, SSB and AM 4 Plenty of audio output, drives any speaker or phones 4 Available in 20 meter, 30 meter, or 40 meter versions HR20C 20 Meter Receiver Kit With Case $39.95 HR30C 30 Meter Receiver Kit With Case $39.95 HR40C 40 Meter Receiver Kit With Case $39.95 K I T Get On The Air... For Under $40! These nifty little CW transmitters are practical and economical take-along rigs for trips, camping, teaching or just amazing yourself with what a watt will do! With an exceptional manual of over 20 pages, the detailed step-by-step instructions guide you to a perfectly operating finished transmitter. They are available in 20 meter, 30 meter, and 40 meter models. The rigs use a standard crystal that is connected into a VCXO circuit which means that you can tune around the crystals frequency by up to 20 KHz thus giving you stable crystal control while still being able to tune around! A front panel switch lets you choose between two crystals; we include one, you can add another of your choice. A built-in T-R switch allows break-in operation. Of course, these transmitters interface perfectly with our QRP Mini-rig receivers and our CMOS CW keyer! And for the real Ham, theres plenty of room inside the included case for your own circuit modifications and experiments. These little rigs are often the heart of many QRP operators stations. Modify till-the-cows-come-home, or just them as they are these little rigs pack a lot of performance into an economical package. Runs on 12 VDC at 200 mA. Included case measures 5 W x 1 H x 5 D . QRP Mini-Transmitters 4 Four transistor circuit, oscillator, RF amplifier chain, and clean keying stage 4 RF output of approximately one watt (3/4 W for QRP20) 4 Pi-network output for good matching and harmonic suppression 4 Provision for two internal crystals (one crystal provided), front panel switching 4 VCXO tuning, frequency can be tuned approximately 7 KHz around XTAL frequency 4 Available in 20 meter, 30 meter, or 40 meter versions QRP20C 20 Meter Transmitter Kit, Includes 14.060 MHz Xtal And Case $39.95 QRP30C 30 Meter Transmitter Kit, Includes 10.108 MHz Xtal And Case $39.95 QRP40C 40 Meter Transmitter Kit, Includes 7.040 MHz Xtal And Case $39.95 AC125 110VAC Power Adapter $9.95 K I T Work The World On A Watt!

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