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This is only a Partial Listing of
Ramsey Electronics Kits Which Are Available!
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No Headphone Jack? No Problem!
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SHA1C - Stereo Headphone Amplifier
YDI Price $32.95
 Use with CD players, tuners, mixers
 Great as a basic preamp for any line level signal
So, you buy a really good radio or CD player, go to plug in your headphones, and there isn’t a headphone jack! You find a line level jack, plug in your headphones, and they sound terrible. Sound familiar?
Most good quality gear lacks an earphone output, or if there is one, it is woefully poor quality. We developed this kit to help us listen to our mixers, reverbs, voice recorders and other audio goodies. We took a pair of LM-386 250 mW audio amplifiers, added volume controls, power supply and a handy, switchable, high-cut filter. A common ¼” stereo earphone jack is used for the output - assuring compatibility with all stereo headphones - and RCA phono jacks accept standard line level input signals. There’s plenty of volume and of course, the “Fi” is quite “Hi”. Available in money saving kit form or fully wired and tested. Runs on 9 to 15 VDC. Includes an attractive matching case measuring 5”W x 1½”H x 5¼”D. (Did you know the leading manufacturer of high-end table radios recommends the SHA1 to all their customers?!)
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 SMD1C - Stepper Motor Driver Kit
YDI Price $34.95
 Controls direction, step size, and power to the motor
 Output drives 5 to 15 volts
 Uses Motorola Stepper Motor driver IC chip
The motors are top quality, but how the heck do you drive them without shelling out a fortune? Easy, with the Ramsey Super-Stepper! Build an accurate positioner, X-Y controller, plotter or even a Robot! The Super-Stepper will drive almost any stepper from 5 to 15 volts. You’ll be able to control direction, speed, step size (rotational increment), and even powerdown the motor after rotating it. An on-board clock generator is provided for easy hook-up-and-go operation or you can externally drive the kit for more exotic control. We give complete details and ideas for additional uses. Put those versatile, first rate (and cheap!) motors to work with this exciting kit. Includes the matching black custom case set. Operates on 5 to 15 VDC. Case size 5”W x 1½”H x 5¼”D.
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The Perfect “Beginners Receiver”!
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SR2C - Shortwave Receiver Kit
YDI Price $44.95
 Tunable over 2 MHz bandwidth anywhere in the 4 to 20 MHz Shortwave Band
 Clean superheterodyne design with automatic gain control
 Extremely sensitive front end!
Here’s a complete shortwave radio guaranteed to inspire awe in any listener. Imagine tuning in the BBC, Radio Moscow, Radio Baghdad and other services with just a few feet of antenna. This very sensitive (about a microvolt!) receiver is a true superhet design with AGC and plenty of speaker volume.
Smooth varactor diode tuning allows you to tune any 2 MHz portion of the 4 to 20 MHz frequency range, and the kit conveniently runs on a 9 volt battery (not included). Add our matching custom case and knob set to give your radio a finished, polished look. Amaze yourself and others - see how you can listen to the world on a receiver you built in an evening. Drives any speaker or earphone. Included case measures 5”W x 1½”H x 5¼”D.
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Decode all that garbled gibberish!
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SS70C - Speech Scrambler/Descrambler Kit
YDI Price $39.95
 Full duplex operation allows scrambling and descrambling at the same time
 Bypass mode provides quick change from direct audio to descramble (no moving wires)
Communicate in total privacy over your radio! This is the popular SS70A descrambler/scrambler that you’ve read about in all the Scanner and Electronic magazines. The technology used within the unit is known as speech inversion which is compatible with many police department systems; hook it up to your scanner speaker terminals and you’re in business. (However, always be sure to check with your local authorities to ensure that you’re not straying into any unlawful communications reception.) The SS70A is full duplex in operation - you can scramble and unscramble at the same time. Easily configured for any use! Easy to build since all complex circuitry is contained in a custom ASIC chip which provides clear, clean audio. Powered by 9 to 15VDC, with 3.5mm mini phone type input/output jacks. The included case measures 5”W x 1½”H x 5¼”D.
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Many other Brands & Types of Kits Are Available!
Bring your Friends & Family to Visit America's Unique Electronic Store.
Prices current 3/26/2010. Prices are subject to change without notice.
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