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Frontline Hobby - Electronics

Clearance Item - 10-Minute Egg Alarm Timer Kit (Limited Stock) This is the perfect EGG TIMER for the 'Chef in the Kitchen'. It will sound an alarm at the end of the pre-set time. The time is adjustable by a very precise special potentiometer supplied with this kit. It is adjustable from a few seconds to 15 minutes. Comes with speaker, parts, complete instructions and etched silk-screened circuit board. Can be ordered assembled.	Whooper Alarm Kit This kit makes an excellent alarm device to connect to your car, home or business. It can also be connected to our Combination Lock Kit #9952. It consists of a fast and slow oscillator to put out the 'whooping' sound. This is a great sound to use instead of the police siren sound to distinguish sounds. Easy to build and maintain. Make several. Comes with complete instructions.	Clearance Item - Automatic Siren Kit (Limited Stock) Here comes the cops!! Sounds like the real thing. Turn it on and stand back and watch the fun. Can be used in plays and movies. You create the scenes and this will provide the sound effects. Easy to build and maintain. Will run for hours. Use it as an alarm or as an attention getter. Make several for more fun. Comes with complete instructions. Give them as gifts to your friends.	20W Bridged Power Amplifier (Fully Assembled) A compact, yet powerful audio amplifier using two TDA2003 monolithic Integrated Circuits connected in bridged configuration to achieve more output power at 12V DC supply. It can deliver more than 20W of music power into a 4-Ohm speaker and is ideal for any kind of audio amplification application. Supply voltage: 12 - 18V DC @ 2A.
Clearance Item - Versatile 12-Hour Timer with Cyclic Option (Fully Assembled) (Limited Stock) This circuit is a useful timer with many applications. It features two modes of operation: �50/50 duty cycle and 1-shot. The timer is adjustable from a few seconds to a maximum of about 12 hours. In addition, it includes 5 fixed timing periods which are selectable via onboard jumpers. Supply voltage: 18V AC C.T. @ 100mA.	Electrocardiogram Heart Monitor Kit Use the ECG1 to absolutely flabbergast your physician with your knowledge of ECG/EKG systems. Enjoy learning about the inner workings of the heart, and at the same time learn, step by step, the electronics circuit theory utilized by the kit. The three probe wire pick-ups allow for easy application and experimentation, without an annoying, cumbersome harness. And the literature included with the ECG1 covers everything, from a circuit description of the kit itself to a circuit description of the heart!	Preamp - Dynamic Microphone Pre-Amp (Fully Assembled) This microphone pre-amplifier is designed to work with dynamic microphones. It will amplify the signal from the microphone to a much higher level, enough to be able to connect it to the input of any audio amplifier with standard input sensitivity like our CK/UK153 or CK/UK193. Supply voltage: 9V DC @ 20mA. Includes 9V battery snap.	4-Channel Digital Colour Organ (Fully Assembled) This colour organ has two modes of operation: 'Musical' and 'Automatic'. In ?Musical? mode, the channels illuminate according to the frequency of the audio input signal. In ?Automatic? mode, the channels automatically illuminate with different timing interval for each channel. Includes 4 LED indicators. Supply voltage: 12V AC C.T. @ 200mA.
DC Motor Speed Controller Vary the speed of your DC motor with this inexpensive circuit. Gear boxes can be costly and series resistors may cause stalling. This circuit delivers the voltage to the motor with pulses and the speed is controlled via pulse width modulation (PWM).	Multi-Mode Timer No one can call themselves an electronics hobbyist unless they have built a timer. There are several designs using a variety of new and sometimes old circuits. Witness the longest surviving IC of all, the 555, introduced over 20 years ago. Most timers have one characteristic - they only timed one thing; an egg timer, a delayed timer, a timeout timer, a flasher, a photographic timer, etc. As you will see these days are almost over.	2 Channel RF Relay Control Board This two channel Auto Roll UHF Remote Control is virtually impossible to 'crack'. The two channels are selectable as either latching or momentary. Transmitter is FCC Certified. Each relay has led indicators. Receiver can support up to 15 transmitters. This kit makes remote control very affordable for you next project. It has a range of upto 30 yards. The FCC certified transmitter comes fully assembled and includes battery. Signal is transmitted on 433.9 MHz.	Clearance Item - Nerve Tester Shocker Game Kit (Limited Stock) This kit is actually two separate projects built into one. They are both designed to test your 'nerves'. Want to be a surgeon, better have calm hands. Try this with your friends and you'll be laughing your head off. You can either feel the 'shock' or turn on an LED to indicate the calmness of your nerves. I dare you to try! Also, you can build a SHOCK BOX by putting the kit into a metal box (any box covered with aluminum foil) such that the lid and the rest of the box is not electrically connected so when someone (unsuspecting) touches the box with one hand and opens the lid with the other, you will get a shock. The kit allows you to vary the strength of the shock and it runs on a 9 volt battery. This is one of the most fun kits you will ever build! Comes with complete instructions.
Clearance Item - Preamp - 10W Amplifier with Microphone Pre-Amp (Fully Assembled) (Limited Stock) Based around the TDA2003 IC, this circuit provides up to 10W of output power using a 12V DC supply. The circuit also includes a built-in microphone pre-amplifier with a microphone jack mounted right on the PC board. The two inputs, 'LINE' or 'MIC' can be selected using a slide switch. Supply voltage: 12 � 18V DC @ 0.5A.	Dual Display Digital Voltmeter / Ammeter With Power Supply (Fully Assembled) (Special Deal) This dual digital panel meter measures and displays both voltage and current at the same time. It is ideal for measuring the voltage and current of your laboratory DC power supply. It includes two 4-digit 0.7" high LED readouts. It can measure DC voltages from 0 to 99.9V (resolution of 0.1V) and DC currents from 0 to 5.00A (resolution of 10mA). Supply voltage: 18V AC C.T. @ 300mA.	Mini FM Transmitter - FM Transmitter Kit CK108 Designed with a 5-pin inductor to provide a wide transmitting range (88 - 108 MHz) and an excellent frequency stability. Requires 4 x "AA" size batteries. Comes with complete instructions, microphone, battery holder, and etched, silk-screened circuit board. It can be ordered assembled. Measures 5cm x 3.5cm.	Microwave Motion Detector Kit with case The unit sends out a microwave signal and looks for a return; a moving object will reflect back some microwave energy and the kit detects it. Since microwaves (no, you won't get cooked or burned by them!) are used - heat, light, sound or vibration will not affect the sensor. This makes it ideal for car and home alarms, outdoor and garage light operators, animal in-your-garbage alarms, and tons more ideas limited only by your imagination. Kit includes detailed instructions, theory of operation and lots of applications and hook-ups. Runs on 9 to 15 VDC. For a rugged and attractive package, choose our matching case and knob set.
Morse Code / Alarm Oscillator (Kit) This simple project is an audio oscillator based on the LM386 audio amplifier. It can be used in two different modes of operation: "Code" or "Alarm". In the "Code" mode it can be used as a Morse Code generator. When the push button is pressed, the circuit will produce a tone of unvarying pitch to send the desired Morse Code. In the "Alarm" mode, it will produce a tone as long as the supply voltage is connected.	Mini FM transmitter - with Microphone Kit CK111 This powerful little FM transmitter comes with a sensitive microphone and will transmit to any FM radio up to 100 feet. This FM transmitter runs on four "AA" size batteries has an excellent frequency stability. The transmitting frequency is adjustable from approximately 88 to 98MHz. A sensitive microphone and an LED indicator are also incorporated right on the board. It only consumes 10mA and the kit includes battery holder.	LED Message Display - LED Display Kit (Green) (Special Deal) With this kit you can create your own message for personal advertisements. This Kit can be used for home, shop, car or truck... Many spectacular light effects on the message : scrolling, blinking, rolling, panning,... You have 12 self definable characters and 150 bright green LED's are supplied with the kit. You can also adjust the effect speed and vertical or horizontal position of the kit is possible. You can select between light effects or that your message is fixed on(selectable with a jumper).You can also synchronize different displays to create longer messages, or to create giant advertisements.	Soldering Kit - Starter Kit (V-KSTARTU, 110V) This soldering kit is ideal for beginners. It comes with everything you need to set up your own soldering station. The starter kit is supplied with some electronic kits to practice with. When you are finished with these kits, check out our other electronic kits.

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