Central Utah Electronics Supply

735 South State St., Provo, UT 84606

801-373-7522 or Fax 801- 373-7736

Toll Free Long Distance 800-805-7522

Kits, & Educational Devices

 

DO-IT-YOURSELF KITS

DIY ELECTRONICS PROJECTS Each one comescomplete with an educational explanation of the circuit. Fun ToolEach with its own PC Board.

PhilmoreDo-It Yourself or DIY kits are well documented circuits that have been carefully engineered and tested by experts. Designed to have an educational value for students that are in the beginner-intermediate range of learning electronics. Most have functions that can be handy in various day-to day usages; or perhaps just fun to play with. Each kit is supplied with all components (unless stated otherwise and a professionally made printed circuit board. The PCB is silk-screened with component placement patterns for easy parts location and assembly. Very clear documentation helps with assembly applications and understanding the theory behind the electronics being used.Schematics provided with all DIY kits.

You will need a few tools, such as a side-cutter and a long-nose plier, a soldering iron and solder.


No. 80-010 Three Digit Panel Meter& Counter Module

This is a basic low cost counter module. Two or more may be plugged together with 6-pin sockets and harness provided. Excellent use as event counter. Uses a singe 3-digit display. Uses the 14553 and 14551 chips. Has count and reset switches with debounce built in to eliminate problems with from noisy switches. Two or more may be joined to make 6 or 9 digit unit. Display may be located remotely. Plastic case included, 9 volt battery operated.

No. 80-020 LCDTemperature Meter

The temperature meter uses the Harris 7106 IC as the heart of a low cost, accurate temperature meter. LCD 3-1/2 digit readout. All of the active circuit is in this one, versatile chip. In addition to temperature functions, the board includes an area for building your own voltmeter, ammeter, resistance or extended range temperature meter. Takes the mystery out how multimeters work. Includes all parts for temperature meter and case. 9 volt battery operation.

No. 80-030 LED Dice with Slowdown

This is a excellent kit for use as an introduction to electronics and circuit analysis. Seven LEDs arranged like a real die face. Push the switch and the die rolls and then slows down, stops. Ingenious circuit design used to minimize components. Uses 14017 & 555 timer. Includes plastic case; 9V battery operation.

No. 80-040 Introduction to a Power Supply

This is a practical battery eliminator for your projects. This is a bank power supply using two 7305 regulators; input up to 20V AC from a transformer. Two regulated outputs-5V fixed, the other variable. Includes plastic case. A good introduction to power supplies, electronics.

No. 80-070 3 Volt FM Transmitter (bug)

The most powerful bug available for operation on a 3 volt supply, considering the low component count. Will easily transmit over 100 yards inside building and 500 yards in the open. Easily tunable in the FM band. Greater range at higher voltage and better aerial.

No. 80-080 Light Alarm

Detects very small amounts of light and sounds a Piezo alarm. Put it in your cash box or cupboard. Uses Darlington photo transistor MEL12 and 14011 IC. A very education kit.

No. 80-040 Oscillator Building Blocks

An educational learning module. Build and experiment with the astable, monostable and RS flip-flop multivibrators on the one PC board with six LED's. See and understand exactly how each works. An excellent introduction to electronics. 9 volt battery powered.

No. 80-100 Touch and/or Contact Switch

Both a touch switch and contact switch are built onto the one PC board so that you can see and explore how each type works. A battery can power the touch switch (2 contacts) but an AC power supply (like No. 80-040) twist be used for the touch part to work properly. High quality 12 volt relay rated at switching 240 volts, 3 Amps is included.

No. 80-120 Audio to Light Modulator

Introduces the Optocoupler-triac MOC3010 and Triac. Complete electrical isolation between input audio signal (low voltage circuit)and output light modulation is achieved.

No. 80- 130 Sound Activated Switch for Tape Recorder

May be adjusted to run on your tape recorder via its REMOTE plug. Has feedback and delay circuit for robust operation. Very sensitive; proven circuit. Needs 6 Volt supply. (NOTE: Does not improve sensitivity of tape recorder itself.

No. 80- 160 FM Telephone Transmitter

Miniature transmitter attaches in series to your telephone line, transmits the conversation. Transmits over 200 yards to an FM receiver. (Much further it your FM receiver is close to a related telephone wire.) Tunable to clear spot in the FM band. Uses the phone line as an antenna and as a power source; parasitic: needs no battery. Not intended for illegal use.

No. 80-170 Audio Amplifier Module

This kit uses the National Semiconductor LM386 IC and is intended for use with other projects where a good, battery powered and variable gain audio amp is needed. Includes the data sheets from National Semiconductor. Designed to be used as a building block in other projects where a battery powered, variable gain audio amplifier is needed. For example, radio amplifiers, ultrasonic & serverdrivers, voltage converters. May be operated with batteries from 4V to 12 V DC.

No. 80-200 Ultrasonic Movement Detector

A matched pair of 40 KHz transmitter and receiver transducer elements detect movement at over 22 feet. Separate PC boards for mounting active units. Latch/reset PCB mounted switch on board. Sensitivity is set via control. Crystal locked circuit for maximum stability. A good circuit for detecting intruders, pets, etc. and then turning on light alarm bell, etc. 9 volt battery operation.

No. 80-210 Two Station Intercom/Hard-wired Bug

The is a basic "hard-wired" intercom that requires you to run a pair of wires between the two stations. Each unit has its own speaker, mike and amplifier (LM386). Can be modified to act as a hard-wired "bug". It you use a four strand wire, the power may be sent to the Bug unit from the monitoring unit.

No. 80-220 Xenon Tube Flasher (9volt)

A bright, variable flash rate strobe light. This is a 9 Volt battery powered xenon tube flasher. The transformer is supplied. Wire is pre-wound on the bobbin but you must do the final winding of the two outer coils. This can be a useful and educational kit; such as in photography.

No. 80-230 OpAMP Function Generator

A very low cost and simple circuit to generate square, pseudo-sinewave and triangular waveforms in the Audio frequency range. Uses a quad opamp LM348. Good educational kit.

No. 80-240 Logic Probe

An indispensable piece of equipment tor testing and measuring digital equipment. Normally used for fault finding and testing but can also be a great help in design work and to see how digital equipment works. Switch for use in TTL or CMOS. Our own modern design using a PUT. Includes detection circuit for very fast pulses. Gives visual indication via 3 LED's and audio indication via piezo sounder.

No. 80-260 Fiber Optic Audio Link

Uses a matched transmitter/receiver pair from Motorola. Allows you to send sound through plastic 1mm fibre optic cable. Two circuitboards with a microphone at one end and a speaker at the other. Includes 14 feet of fibre optic cable. Will work over 220 yards.

No. 80-270 One Watt Audio Amplifier

This circuit is intended to be a building block for use with other kits, your own circuits, etc. where a battery powered monaural amp is needed. This is a Phillips TDA7052 IC based, 1 watt power amplifier. Battery operated from 3 to 15 volts, 6 is optimum. Output to an 8 ohm speaker. The circuit board is very small, just 1-3/16" square (tallest component stands about 5/8" tall). Few components are needed and no heat sink required. Frequency response 20 Hz to 20 Khz. Complete data sheet included.

No. 80-280 Sound Activated FM Transmitter

A sound activated switch and FM transmitter hybrid; sound turns on the transmitter. Sound switch activation level is user set able. Two state transmitter has excellent range. When no sounds are present, the transmitter is powered down to save power.

No. 80-290 Electronic Combination Lock

This is an excellent introduction to security devices. Set your own four digit code; any wrong key in sequence resets the lock; correct sequence activates the relay (up to 240VAC contacts). A 9-digit key pad circuit board is separate and connects via ribbon cable, 30' supplied. Requires 12 VDC battery or supply.

No. 80-300 PIR MovementDetector

This is an excellent security device, sees infra-red heat of intruder in field of view. This is a recent design for a PIR detector. It should not be underestimated. Rather than the usual opamps, amps, and amplifiers, this kit uses a movement IC. Has PCboard mounted Fresnel lens. IC has circuits to turn off detector in day light. Two levels of sensitivity.

No. 80-310 9 Volt Siren

A simple siren circuit and a surprisingly loud output. Uses voltage controlled oscillator and comes with a half watt 8 ohm speaker. Good as a sound module to attach to an alarm system, etc. 9 volt DC operation.

No. 80-320 Two-Stage FM Transmitter

This is an extremely sensitive and powerful FM bug that transmits to the upper part of FM band. A two stage, three transistor FM transmitter, that operates on a 9-volt battery. The most sensitive and powerful that you can legally buy. The circuit employs an electret microphone for added sensitivity. Unit can run on six volts, with the greatest output at 12 volts, but uses 9 volts and the short antenna, included, to stay legal in U.S. PCB is only 3/4" wide by 2-3/4" long.

No. 80-330 Low Voltage Phone Recorder Switch

This circuit is intended to switch on a miniature tape recorder when the telephone is used. It will switch some of the smallest units that operate on voltages as low as 1.5 volts, which many older circuits cannot handle. Plugs into the REMOTE and MIC jacks of recorder.

No. 80-340 General Purpose 3-1/2 Digit Panel Meter

This LCD panel meter is a very fexible design that can be customized to your own VOLT meter or AMP meter needs. It may be customized to measure any voltage range, standard or not. It also can be customize to measure input from a transducer; full details are included. The LCD readout may be mounted away from the main circuit if needed, interconnected with ribbon cable.

No. 80-680 Variable Power Supply

This is a basic adjustable voltage power supply with a range of about 1.5 VDC to 35 VDC set by a potentiometer. It is capable of 2 amps if you add a simple heat sink. Circuit includes short circuit protection.

No. 80-350 DC to DC Converter

This unique little circuit permits you to use one or two 1.5 volt batteries in place of a 9-volt battery; a real cost saver. An easy introduction to switching power supplies. Generally it is far less costly to use one or two 1.5V in place of a 9 volt. The circuit uses the Texas Instruments TL496 IC and can handle circuits up to 100mA. Recomended for use in many miniature circuits in this group.

No. 80-820 Movement Detector Components

A bit different from other kits. We supply the three basic components for you to make your own movement detector. Included is a PC8 mounted fresnel lens, a PIR movement sensor and the latest movement IC just released. Eight pages of application notes show you how to proceed.

No. 80-630 One Cute AM Radio

Complete AM radio on a PCB. Tuned radio frequency front-end,single chip RF amp and detector and two stages of ampilification for audio into a speaker. All components supplied. Coil prewound. Good for schools.


CHIP-ON-BOARD PRODUCTS

This series of kits; Nos. 80-910, 80-920, 80-930, and 80-940, known as chip-on-board or COB, have application specific IC's at the heart. This means that each IC has only one very specific application and that it was designed to do that specific job well with as few external components as possible. For example, the No. 80-910 has a COB that is a CMOS VLSI that makes four sound effects for the model railroader. (VLSI-very Large integration.) These COB's are small and should be quite concealable in most applications.

No. 80-910 Four Train Sound Effects

This COB project will produce four very realistic, user selectable, sound effects that are ideal for model railroads. Throw any of four switches to produce: a train whistle blowing 3 times, a train chugging along, a level crossing bell and the "clickety clack"of a train crossing a bridge. The 80-910 may be cascaded with one or more additional 80-910 so that one sound ending triggers the next unit for another sound. Kit includes all parts including speaker. Easy assembly; operates on 2.4 to 6 volts DC.

No. 80-920 Cellular Phone Sound Effects

The COB used here were designed for applications in fake cellular phones, childrens' cellular phones, etc. This one is a lot of fun to play with. It produces eight sounds typical of cellular phones that can provide a youngster with a lot of entertainment. Operates from 2.5 to 5 volts DC.

No. 80-930 16 Assorted Melodies

Talk about a circuit that would be great to build into a toy for a little kid...This COB produces sixteen different melodies. When the switch is pushed, the first mellody is triggered and plays through. Each song is played in turn with each subsequent trigger. An LED driver is available and its output synchronizes with the rhythm of the tune. Some of the tunes are: Cuckoo Waltz,For Elsie, Home on theRange, Hush Baby,The Farmer in the Dell, etc... and the rest are a secret until you purchase the kit. All parts including speaker are provided, except a 3 volt battery; operates between 2.5 and 5 volts.

No. 80-940 Ambulance, Fire and Police, and Machine Gun Sounds.

This COB kit is another that is fun for children's toys. Three different siren sound effects emulate fire and police. The circuit may be set up to trigger the sound for about eight seconds, or sound may be turned on continuously at your option. The fourth sound is that of a machine gun firing.

No. 80-950 Happy Birthday COB (chip-on-board)

This one does not require any assembly, unless you want to install it in a package or birthday card. When an insulator is moved aside, the circuit plays the "happy birthday" melody, through a tiny on-board speaker. This is kind of corny but boy can you get to a girl's heart with this little device. A really nice surprise to send to your Dad too. (Naturally, he'll feel certain that you're a genius.)

No. 80-840 117 Volt AC Relay Bound

Many electronic projects use a low voltage circuit, such as a timer, light sensor, dark sensor, temperature sensor, and a movement detector, and output a signal when a certain predetermined event occurs. This signal is often a rising or falling 12 volt pulse: but then what do you do with it? You use it with this circuit to control a relay capable of handling up to ten amps (or 5 amps @ 240VAC).

The circuit includes a DPDT relay with a life expectancy of about ten million cycles. Be sure to house this circuit in a suitable case, well insulated and safe for every one that may ever be around it.

No. 80-550 Suction Cup Phone Pickup with Amplifier

No electrical connection to the telephone is required. Attach a suction cup to the hand set and turn on the amplifier. This project permits group listening to phone calls, or you can monitor any other oscillating electrical field. Dual IC's provide a good quality amplifier. The circuit runs on 6 volts DC. Everything is included except the batteries.

No. 80-580 Infrared Toggle Switch

Control about any device using the remote control from just about any TV set. The circuit switches an on-board SPDT relay. Turn it on with the remote, and turn it off with another signal. The relay contacts are rated one amp at 125 volts AC. The circuit operates on any DC supply from 8 to 15 volts. Use an old calculator supply, etc. This circuit can have some very practical applications, such as turning on a light by an invalid. Your imagination is the limit.

No. 80-104 Stereo Preamplifier Kit

Amplify any tiny audio signals about fifty limes, and deliver them to a power amplifier cleanly and undistorted. An AGC (automatic gain control) eliminates pops or distortion. This circuit will be useful in boosting the output from tape heads, microphones, or a magnetic phone cartridge, etc. For input to an audio amplifier. Requires a 12VDC power supply at about 100 mA peak.

No. 80-102 Universal Timer

Set timer for any where from a few seconds to about 15 minutes. Control AC appliances. It will beep and trigger a relay when it has timed down. May be used for darkroom or PC board exposure timer, exit room timer, etc. Turn anything on or off. Operates from 9 volt transistor battery.

No. 80-790 Three Light/DarkActivated Relay Switches

This kit has three separate circuits in one; three separate PC boards, etc. This one will give you both useful circuits and experience in different approaches, circuit-wise, to doing the same thing; controlling a device with a change to either light or darkness. Each kit is equipped with a relay rated up to 240VAC @ 5Amps. You may either turn "on" or "off" the controlled device. A good kit for student learning electronics.

No. 80-470 8 Watt Audio Amplifier

Low voltage operation does not mean low power. This amplifier can produce a full eight watts into a standard four or eight ohm "load" such as a speaker. Actually, it can deliver up to 11 watts if you use a 18 volt supply.

You may use this amplifier with a wide range of power supplies, from 5 volts to 20 volts. The IC has built-in current limiting and over-heating protection. An ideal building block for use with many other projects. The audio quality is excellent.

No. 80-710 Programmable Dice

The idea on an electronic dice game of one kind or another is almost as old as glaciers. But this one is very clever and includes software on a floppy disk (for the IBM PC) plus a huge manual describing how such things work, software for other projects, etc. This may be the most educational kit in the line.

No. 80-101 Home/Car Alarm

This circuit in an alarm for the home or car door, and a lot more. It employs a magnet and reed switch to trigger the circuit. An integral piezo sounder produces the alarm sound (100dB). But, a relay capable of handling up to 10 Amps AC may be connected to turn on or off an appliance, external alarm sounder, etc. Therefore the circuit could be used to turn on a light whenever a basement or garage door is opened and so on.

No. 80-870 1 Watt Stereo Amplifier

An amplifier designed with portability in mind; ideal for battery applications. A full watt from each channel, excellent fidelity. Uses a Samsung KA2209 IC. Small size; the board is 1-3/8" by 2". All basic parts supplied, including PC board; you supply two 8-ohm speakers. A six volt or nine volt battery pack is suggested using AA cells. Use D cells if extra long battery life is required. Suggest uses are for amplification of a CD or Walkman.

No. 80-060 FM Stereo Transmitter

This is a circuit that will broadcast CD quality sound to your FM Walkman, home stereo or automobile radio. It produces a strong signal that will generally cover the average home and yard. It is stable enough to use even with digitally tuned FM receivers. Typical uses include broadcasting your own music to a receiver at pool-side or in a garden. Or, you could broadcast from a personal, portable CD player to a car radio that has no CD player. School uses include running a "broadcast station" from another room as a speech class exercise. The unit is powered by a nine volt transistor battery, or an AC wall adaptor.

No. 80-050 44 Watt Stereo Power Amplifier

The circuit is a gem; a TDA1554 IC is used to produce an amplifier that will output up to 22 watts per channel with distortion typically not in excess of 0.1% thd. Sound quality is very, very high. Originally intended for use in an automobile, the kit could be built for home use. If you build it to power-amplify your car stereo, be sure that your speakers (4 ohms best, 8 ohms OK) are big enough to handle the power. Special Note: An automobile generally provides from 13.6V to 14.4V when engine is running. Any thing between 12 volts and 14.4 volts DC will do but the amplifier can draw as much as 5 amps, so the average "wall adaptor" is not going to work. If you do use an AC operated power supply; get a clean one with very low ripple.

No. 80-740 Portable Port Relay Board, for the IBM PC (software included)

With each advance in personal computers, a surplus of unwanted older machines increases, either at give-away prices or you may have one sitting on a shelf. Thus you can have a low cost, sophisticated "dedicated controller" to turn on or off devices in the home, lab, or radio shack, etc.

The circuit includes eight relays controlled with (included) software for either DOS or Windows 3.1 The kit is a boon to the Science Fair project, laboratory experimenter and so on. Connects to the parallel port.

No. 80-670 DC Motor Speed Controller

Vary the speed of DC motors the very best way with this kit. 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). The speed control is a potentiometer, for DC motors up to 100 Volts at a maximum of five Amps.

No. 80-850 Three Timer Circuits

Timer circuits are handy for many experimenters' laboratory functions, not to mention the photo or PC tab. This kit is another three-in-one in that all three circuits are complete and separate; simply using different types of circuits to do exactly the same job. All come complete with 5 amp relays for controlling pretty significant loads. All may be operated on battery or light weight (9VDC) supply. The advantages and disadvantages of each design are discussed in the text.

No. 80-900 3 Watt Stereo Amplifier

The Rohm BA5406 IC is used to make this powerful little stereo amplifier. The entire circuit is on a 1-1/2" x 2-1/2" circuit board. You'll need to allow added space of 1-1/2" x 2-1/2" for the heatsink, plus ventilation for same. In addition to a 12 VDC power supply (batteries), you will need to provide 4 or 8 ohm speakers, cables and a heat compound to put between the IC and the heat sink.

No. 80-375 5 LED Multi-Sequential Flasher

Flashes five, very bright LED's in any of one of seven, user selectable, patterns. A COB (chip-on-Board) IC makes assembly very easy; the chip is supplied premounted on its own board and amother board contains the entire circuit. Operates on 3 volts DC, battery holder is included. Continuously repeats a sequence when power is supplied.

No. 80-105 Voice Changer

Your voice can be changed to add a vibrato, like those used to disguise secret witnesses. Or, you may change your voice tone upward or downward; women sound like men and vice versa. Includes a very ROBOTIC voice as well. A microphone and speaker are included on the PC board, all that you need to add is a nine volt, transistor battery. This is a very novel and entertaining circuit.

No. 80-103 Photo Sensor with Control Relay

The most popular usage for this kit is to make your own nightlight. But, you could switch just about any appliance either on or off with either darkness or daylight. Light sensitivity is adjustable over quite a range. The relay can handle up to 10 amps AC. You need to add a nine volt transistor battery or a nine volt, 25mA supply.

No. 80-106 Sound Effects Generator

Another novel circuit, that might be useful for special theatrical effects. Or, if you are simply a practical joker. The circuit can produce sounds such as the tick-tock of a grandfather's clock, a heart monitor (as in the hospital), water on a tin root, a motorboat, cricket, etc. Requires a nine volt battery. Includes its own speaker.

No. 80-880 Stereo VU Meter

This Is a very eye appealing audio accessory. Displays an approximate output level for each channel of stereo amplification. Connects to the speaker terminals; levels are displayed in ten discrete steps. User may select either a moving dot or bar appearance. Uses two LM3915 IC's; includes a discussion of measuring audio power.

No. 80-915 17-1/2 Watt Mono Amplifier

A high quality audio amp that can operate on a low voltage. 12 VDC recommended. Uses the Hitachi HA13001 IC and a dozen external components for a compact and powerful monaural amplifier. Builder must supply his choice of speaker (4 or 8 ohm) and some heat sink grease to apply between the IC and the heat sink. Includes PC board and all parts. Build two for stereo.

No. 80-525 Sequential Flasher

The circuit flashes five LED's in sequence repeatedly until you turn it off. Flash rate is user adjustable. The circuit usess an IC chip-on-board which you will then mount on the included motherboard; battery holder is included.

Powered by a 3 Volt supply or battery; good for a child's toy or for those "high-tech" looking special effects for stage plays, etc.

No. 80-150 6-12 Volt Alarm Module or SCREAMER

The loudest piezo alarm that you will find: 10dB to 11dB output @1 meter. The kit includes a resonant cavity mounting case which is molded plastic, 2" x 3-1/4" and 1-1/4" deep, plus mounting ears. If you want to totally startle a burglar, this is the kit to assemble. Operates on 6 to 12 volts. You'll need a good supply: it draws about 500mA maximum.

No. 80-005 STAIRWAY TO HEAVEN Game

Pressing the switch while a dual LED is green advances you to the next stage; but mess-up and press while red, and you go back to the beginning. It can be tricky and a challenge. Fun and teaches some practical basic electronics. Operates on 9V battery.

No. 80-570 ION Generator

Are there some healthful positive benefits caused by being in an environment that contains negative or positive ions? Some reports suggest a wide range of benefits. This generator can be set up to generate either negative or positive ions; the builder's choice. Operation is from 117 Volts AC power line. You will need to find a case or box for the final assembly, about 2" x 4-1/4" and an inch depth; and an AC power cord from an old amp (or buy new). You can actually feel the flow of ions from the unit.

No. 80-088 10 Watt X 10 Watt Stereo Amplifier

Employs the TDA2009 class AB audio power amplifier IC for quality stereo applications. May be operated on a supply voltage of 8 to 22VDC. This is a very straight forward stereo amplifier: complete witha PC board (about 1-3/4" x 3"). Powerful enough to power your stereo for a mid-sized room and more than enough for use in an automobile.

No. 80-014 Light Activated Music Box Engine

This circuit will play a tune when light strikes a light dependent resistor, such as when a music box lid is opened. You can select any one of about a dozen romantic melodies: play just one or let the unit cycle through all of the tunes. Operates on 3 VDC. Two AA cell holder included. You could really wow a girl friend or simply please your mom.

No. 80-980 Monaural Preamplifier

Our audio amplifier kits works very well, but if your input is a tape head, magnetic phone cartridge or electret mike, the input level may be too low to do the job. This small preamp can be used in these applications; plus, we have included a mike that may be used with the circuit. Power at 6 V to 12 V (current at 12 V is 3mA, only 2mA at 9V). The gain is more than 40 dB.

No. 80-118 12 bit Data Acquisition System

The circuit, once built, connects to the parallel port of a PC for data input/output. Uses the Maxim 186 IC; collect analog and digital information and store them on the hard drive. Included software can display and interpret the data, provide trends etc. This is a very sophisticated little device and software (good Science Fair stuff too). Manuals and software are zipped on an included diskette. This is for somewhat sophisticated users that know their way around a PC fairly well. Not for beginners. Power with 9 or 12 VDC.


Optic Emitters and Detectors

Simple, non-technical mating with stock 1--uM fiber

Everything from audio systems to computer aided machines control becomes clean and free from outside interference with fiber optics. Here is a family of low-cost, medium frequency emitters and detectors for use over "short" ranges. A PVC housing is used universally to house all of the various devices that are most commonly wanted for fiber optic circuits. Low cost, 1000 uM fiber connects via a knurled-nut arrangement on the universal housing; no special tools or training needed. A razor blade is the only tool that you'll need.

Now is the time to design the interference free, fiber optic devices that you've been thinking of; and at a low cost. The chart below shows the various devices available, ranging from a photodiode to sophisticated photologic detector. Full specifications are published separately.

Part Number

Description

Motorola Equivalent

Package Color Code

No. 80-425

Photodiode detector

MFOD71

Orange

No. 80-435

Phototransistor detector

MFOD72

White

No. 80-445

Photodarlington detector

MFOD73

Red

No. 80-455

Photo- Schmitt with open collector output

MFOD75

Chestnut

No. 80-465

Photo-Schmitt with totem-pole output

none

Yellow

No. 80-475

(low cost) 940 nm infrared LED

none

Blue

No. 80-485

High optical output 880 nm LED with low attenuation

MFOE71

Green

No. 80-495 1000 Micron (l mm) Fiber Optic Cable with 2.2mm Outer Jacket

For use with any of the above emitters and detectors. This is a plastic fiber optic cable that does not need special polishing or grinding for excellent performance. To cut, use a very sharp hobby knife or razor blade and simple cut as squarely as possible. May also be used to conduct light for pinpointing spots on a map and so on. A very good cable at a low cost. Coil of 25 ft., display packaged

No. 80-405 Fiber optic Kits for Instruction or Science Fair Projects

EDUCATIONAL COMMUNICATIONS KIT economical. Promotes learning about fiber optics with serious hands-on experience, The Communications Kit is a digital link that is suitable for use as a data link, high-voltage isolation, computer interfaces, etc. Included are matched fiber optic transmitter and receiver, one meter of fiber cable, PC boards and all of the materials needed. Also includes a comprehensive booklet which explains the basics of fiber optics, theory and operation. Requires assembly and soldering. Complete Kit, display packaged

No. 80-415 OPTICAL VOICE LINK KIT, an excellent teaching aid

There is something rather wondrous about hearing your voice converted into light energy and reconverted to sound at the other end of this circuit. This kit has probably won more Science Fairs than any other type of project. For students and experimenters alike. The kit contains PC wiring boards, switches, the electronics and microphone, speaker and optical fiber (3 meters) as well as uncomplicated step-by-step instructions. Required assembly and soldering.

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