Page 4 of Amateur Radio Gear by Ramsey Electronics

55 Shop online at www.ramseykits.com Call Toll Free 800-446-2295 AMATEUR RADIO GEAR Build It, Learn it, Achieve It, Enjoy It! Fun Electronics...Now in our 34th Year! Add to your CW fun with our low cost CMOS Keyer Kit. You'll send clean code thats a pleasure to copy; self completing dots and dashes with properly weighted spacing and timing are all programmed into the CW7Cs design. Assembly of the keyer is fast, easy, and fun. Our step-by-step instructions lead you to a finished unit in only one evening. Great for beginners to learn proper and perfectly formed CW right from the start! Built-in tone, adjustable pitch, and front panel speed and volume controls are featured. The CW7 is the ideal companion to our QRP transmitters or any other rig you may own. You need to supply an external set of paddles (Manual includes details on constructing economical paddles). The included custom case and knob set matches our QRP receivers and transmitters and gives your keyer a nice attractive finished look. Runs on a standard 9VDC battery. Case measures 5 W x 1 H x 5 D. CW7C CW Keyer Kit With Case $34.95 4 Perfect CW in one night! 4 Ideal for code practice 4 Great features-budget price K I T EZ Key CW Keyer Looking for a great starter kit to spark the interest of a future engineer? Looking for an easy way to either learn or practice your code? This little code practice oscillator is inexpensive, easy to build and easy to use, and features an audio tone adjustment for your listening pleasure. The unique key built on the board simulates a standard CW key making it unnecessary to connect an external key. A small built-in speaker provides you a clear audible tone complete with adjustable pitch. Uses the ever popular 555 timer IC with full theory of operation to guide you through the construction. Handy 9 VDC battery operation insures hours of enjoyment and the chance to practice your CW code anywhere you go. Size: 3 1/2" X 1 1/2" X 3/4". Code Practice Oscillator CPO3 Code Practice Osc. Kit $14.95 4 Great starter kit for young or old! 4 Ideal scouting project 4 Practice your code anywhere! K I T Works With Any Rig! Learn Code The Simple Way! 2-Meter Receiver Preamp Heres the ideal preamp for repeaters, base stations, mobiles anywhere a selective, low noise signal boost is needed. Unlike other preamps the PR100 features extensive RF filtering to crush intermod before it reaches your radio. Two poles of sharp Helical filtering combined with a 3 pole L-C tank allow only signals of interest to reach your receiver. A low noise microwave bipolar transistor provides an excellent 1 dB noise figure while remaining ruggedly insensitive to static and strong signals. Preamp is easily configured to be powered via the coax (for mast mount applications) or powered through a separate power cable. Kit is designed to fit snugly into a 3 long piece of 1 PVC pipe with end caps, making an ideal outdoor enclosure. Runs on 9 to 15 VDC. Size: 4 w x 7/8 h x 1 3/8 d. PR100 2 Meter Receiver Preamp Kit $34.95 4 2 Meter Preamp with the sharpest filtering available! 4 Can be powered up the signal coax (9 to 15 VDC) 4 Helical filter for fantastic intermod rejection Great Gain And Super Selectivity! K I T Low Cost Receiver Preamps Put some new ears on your rig with one of these hot little preamp kits. Their high gain combined with low noise will improve most any receiver. Fully protected against overload and designed for low current and stable operation, they employ high Q tuned circuits which restrict outof-band signals which can cause intermod blanking and overload of your radios front-end. Dont be misled by GaAs FET claims! The cheap dual-gate FETs (manufactured for TV tuner usage!) used by others just dont come close to the performance of these preamps designed with NEC microwave transistor devices. Gain is typically 16 to 20 dB and noise figure is 1 dB 2 Meters, 1.2 dB @ 220 MHz, and 1.4 dB 440 MHz. Compact design for easy installation into most any rig. Operates on 12 to 15 VDC . Size: 1 x 3/8 x 1 . PR10 2 Meter Receiver Preamp Kit $14.95 PR20 220 MHz Preamp Kit $14.95 PR40 440 MHz Preamp Kit $14.95 4 Low noise (typically 1 to 1.5 dB) 4 High Q tuned circuits (very narrow band) prevent out-of-band signals from overloading front-end 4 Available in 2 meter, 220 Mhz, 440 MHz The Quick And Easy Preamplifier! K I T

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