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Solar Power Educational Kit Excellent introduction to solar power through hands-on experiments - makes science enjoyable & exciting. Instruction booklet explains how solar cells work and how to connect solar cells for the desired voltage and current. Learn about solar energy and the many ways it can be harnessed to provide energy for a multitude of uses. The solar cells may be powered by the sun or a flood lamp. The Solar Power Educational Kit comes complete with more than 50 parts, including: 8 solar cells, 1 electric motot, 1 propeller, 2 wrenches, 1 motor stand, 1 solar cell holder, 12 connecting straps, 16 nuts, 16 lockwashers, and connecting wire with terminals.	FM Radio Transmitter Kit FM10A with case This is a stereo transmitter! Just connect a cassette deck, CD player, MP3 player or mixer panel to the FM-10A's line level inputs and you're on-the-air with a school, dorm, camp, home, church or neighborhood FM station. Tunable anywhere in standard FM band... 88 to 108 MHz Operates on 5 to 15V DC Standard line level inputs with RCA phono jacks Settable pre-emphasis 50 or 75 Sec for use anywhere in the world Adjustable input sensitivity and stereo balance Easy to build, low cost transmitter FCC Approved RF Output: 10mW Range: up to 200 feet The FM-10A has plenty of power and our manual goes into great detail outlining all the aspects of antennas, transmitting range and the FCC rules and regulations. You'll be amazed at the exceptional audio quality of the FM-10A, in fact, your station will sound better than most stations on the dial! This is because in their quest for ever higher ratings, FM broadcasters crank up the average level of their modulating signal in order to sound 'louder'. This produces noticeably more muddy and constrained sound than your signal! Whether you set up a wireless extension of your home stereo, dorm radio station, or simply transmit radio calls (2 meters on the left, 440 on the right - stereo, remember?) you'll find lots of fun and satisfying uses for this most popular kit. Runs on internal 9V battery or external power from 5 to 15V DC. Optional kits are Small antenna and Case (size 5"w x 1-1/2"h x 5-1/4"d), 12V AC adapter. The kit includes Transmitter, Case, and small Antenna. The kit can be ordered assembled (like the picture). You must choose a frequency between these 3 ranges: 88-94, 91-100, or 95-108Mhz (We need to know which range when we assemble the unit, it can always be changed later by switching a capacitor).	2-Hour Digital Countdown Timer with LED Display (Fully Assembled) A countdown digital timer which can be set to any time interval from 1 minute to 1 hour and 59 minutes. Once it has been set, it starts counting down until it reaches zero at which time the relay will be activated to turn on or off any equipment. It features a PC board mounted 4-digit 7-segment LED display. Relay: 3A @ 110V AC. Supply voltage: 12V AC C.T. @ 300mA.	Clearance Item - Digital Bird Kit (Limited Stock) This one is a 'crack up'. Take it to the pet shop and you will have all the birds singing in no time. They go nuts when they hear it. It also creates many weird sounds like dinosaurs eating someone's bones, etc. I have made many very strange sounds come out of this one. Totally analog controlled so you may create sounds no one has ever heard! Keep a tape recorder handy to tape the sounds so you can use them at parties and school functions. Send them out of the PA system and they will all look up and wonder what is happening. Great for plays and science fiction stuff. Comes with complete instructions and diagrams.
HI-FI Stereo FM Transmitter - CK222 Here it is! The transmitter you need to send that beautiful music or favorite TV program out to the pool or all over the house and yard or business office. Connect it to your stereo or TV and listen to the music or program with an FM radio, FM portable radio, etc. Transmits in true stereo. You will have your own FM radio station for your home or office. Comes with easy to follow assembly instructions, battery holder and RCA inpur jacks. Can be ordered assembled. The transmission range is 150ft. It also has adjustable frequency from 88 to 98 MHz and input sensitivity from 50 mV to 1V. Please note the sound quality for this product is Med to High. If you need High quality sound with up to 300ft of range, our most popular transmitter is the R-FM25B Transmitter.	Clearance Item - CMOS CW Keyer Kit with case (Special Deal) (Limited Stock) Add to your CW fun with our low cost CMOS Keyer Kit. You?ll send clean code that?s a pleasure to copy; self completing dots and dashes with properly weighted spacing and timing are all programmed into the 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. For beginners, the CW-7 makes an ideal code practice oscillator - learn the sound of perfectly formed CW right from the start and have a fine piece of ham gear too! Built-inside tone, adjustable pitch, front panel speed and volume controls, and convenient 9 volt operation are featured. The CW-7 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.)	Preamp - 220 MHz Preamp Kit 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 out-of-band signals which can cause intermod blanking and over load of your radio's front-end. Don't be misled by GaAs FET claims! The cheap dual-gate FETs (manufactured for TV tuner usage!) used by others just don't 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 or easy installation into most any rig. Operates on 12 to 15 VDC.	Preamp - 2W Amplifier w/Microphone Pre-Amp Kit A universal audio amplifier with many applications. Includes a microphone jack. Microphone input sensitivity: 5 mV. Audio line input sensitivity: 150 mV / 47 k ohms Voltage: 9 - 14 VDC @ 300 mA. Comes with complete instructions and etched silk-screened circuit board. Can be ordered assembled.
Electronic Ignition - Electronic Ignition Kit This product features easy to fit, only four wires, Transistor assisted ignition method, Significantly reduces contact breaker wear, Original connections can be easily restored at any time and improved coil performance returns easier starting and cleaner combustion.	1.5-24V/1.5A Dual Output Power Supply Kit Two modes of operation: "Symetrical", which provides two equal (+) and (-) outputs, and "Independent", which provides two independent (+) and (-) outputs. Voltage: 48 VAC C.T. @ 1.5 Amps. Heat sinks are included. Comes complete instructions, transformer and etched silk-screened circuit board.	One Channel Light Organ Minikit Simple one channel light organ. This is a simple one channel light organ which modulates a lamp according to the music signal at the input.	Manual Police Siren Kit This Police Siren is as realistic as you want to make it. You hold down the push-button switch to make the siren 'howl' and watch everyone look for the cops. Easy to build and maintain. Comes with complete instructions along with drilled and etched circuit board.
Clearance Item - Beginner's Metal Detector Kit (Limited Stock) Find hidden treasures, or at least try! Designed on the basic principles of 'mine detectors'. This circuit board is rubber banded to any portable AM radio and it will cause an oscillation to be heard when you approach any metal object. When the coil comes close to any large metal object, it changes resonant frequency and you will hear it in the speaker of the AM radio. Lots of fun and you will find lots of creative uses for it! Easy to build and use. Comes with complete instructions and diagrams. Solder included.	2 Channel Loudspeaker Protection Kit This stereo loudspeaker protection will protect the loudspeakers against the switch-impulsions and the direct current component on the output of the connected amplifier. The switch-impulsions can be avoided by giving the amplifier the time to reach its continuous regime before switching the loudspeakers.	All Terrain Robot Kit Scrambler This 6-legged Robot walks in a straight line until it sees an object in its path. The Robot's eye, a state-of-the-art infrared beam like those used in alarm system motion detectors, sees the object and alerts the motor control circuits which alter the Robot's course to avoid the object. The BOOK discusses infrared beams, operational amplifiers, photodetectors, motor control theory, and more. Illustrated assembly instructions, schematic and block diagrams, quiz and troubleshooting guide complete the Book.	Large Display Digital Thermometer (Assembled) A digital thermometer with a large 2" high display that is visible from a distance. It includes two digits made up of 25 LEDs each plus a degree Celsius symbol (C). It is based on two Integrated Circuits: the 7107 voltmeter and the LM35Z temperature sensor. The circuit incorporates a built-in power supply with an AC/DC adapter jack. Supply voltage: 9V DC @ 200mA. Recommended power supply: Kit CK341V12 / UK341V12.
Clearance Item - 5-Channel LED Chaser (Soldering Kit) (Limited Stock) This simple 5-channel LED chaser can be used anywhere requiring LED light effects. The circuit is based on 2 transistors and an Integrated Circuit which drives all 5 LEDs. The chase rate can be adjusted by a PC board mounted trimmer potentiometer.	Pro FM Stereo Radio Station FM100B (Soldering Kit, 25mW) Our line of FM Stereo transmitters have been the choice of enthusiasts the world over, but many folks have asked us for a professional radio station in 'one-box'. In answer to these requests, we designed the FM-100, a truly professional frequency synthesized radio transmitter station in one easy to use, handsome cabinet. Most professional radio stations require a whole equipment rack to hold all the features we've packed in to the FM-100. Synthesized 88 to 108 MHz for no frequency drift! Professional quality for exercise clubs, realtors, drive-ins, etc. Microprocessor controlled for easy frequency selection The ideal campus or school Radio Station LED readout of transmit frequency Set your transmit frequency easily with the Up/Down frequency buttons and the big LED frequency display. Plus there's input low pass filtering that gives great sound no matter what the source (no more squeals or swishing sounds from the cheap CD player inputs!) Peak limiters for maximum 'punch' in your audio - without over modulation distortion. LED bar graph level meters for easy setting of audio levels, even a built-in mixer with both microphone and line level inputs. Just plug in your mike, add a CD player or tape deck and you're on the air with a set-up and sound equal to most commercial stations! Churches, drive-ins, schools and colleges find the FM-100 to be the answer to their transmitting needs... you will too. No one offers all these features at this price. Order one and be on the air in hours! Kit includes sharp looking metal cabinet, and built-in 110 volt AC power supply. You must purchase an external antenna. Range: 1/8 mile Output: 25mW.	5-Channel Multi-Program Light Chaser with Triac Board (Fully Assembled) A versatile 5-channel AC light chaser that is easy to program. The circuit incorporates 5 jumpers that can be positioned on 2 different positions in order to create numerous types of moving light effects. Each channel can handle up to 200W. Includes adapter jack. Supply voltage: 12V DC @ 100mA.	IR Light Barrier Includes transmitter (2.1" x 1.6") and receiver (3.9" x 2"). The kit transmits a light beam between the transmitter and receiver up to 4 meters. When the light beam is interrupted the kit makes an audible noise (85dB). The transmitter and receiver, both require a 9V battery (not included). Comes with battery holders and adapter jack. Kit comes with complete parts and instuctions.

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