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Datak Products Which Are Available!
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Datakits 80-160 thru 80-240
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FM Telephone Transmitter
Miniature transmitter attaches to the phone line and transmits the conversation. Transmits 200 yards and more in most installations. Tunable to clear spot on the FM band of your radio. Completely parasitic; i.e. uses the power from the telephone line and needs no battery. The circuit might be used to share or record conversations, but please do not use illegally.
No. 80-160 FM Telephone Transmitter Kit
YDI Price $9.90
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Convertible BarGraph Kit (audio sound level kit)
Typically used to indicate sound levels in playback equipment, may be used in other applications such as a meter in a receiver, level indicator in field strength meter etc. This circuit is set up to show both a left and right channel output in a series of eight LED's per side. Channels are independent of one another. By "convertible", we mean that you could use this circuit with just one input and all sixteen LED can be used to indicate relative level. Input level is user adjustable; sensitivity can be set all of the way from millivolts to a few volts per step (LED). Very, very linear indication. The kit may be operated on 5 to 18 volts DC.
No. 80-165 Convertible BarGraph Kit
YDI Price $24.90
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Audio Amplifier Module
A good, variable gain amp to use with other projects, amplify radio circuit etc.. Uses the National Semiconductor LM386 Integrated Circuit; a well known and quality IC. Kit includes the data sheets from NS. Battery powered, may be operated from 4 to 12 volts DC. Powers a small speaker for personal listening.
No. 80-170 Audio Amplifier Module kit
YDI Price $14.90
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Ultrasonic Movement Detector
The circuit uses a matched pair of 40Khz transducer elements to detect movement out to about 22 feet. You may add a relay (not included) to switch a heavy appliance etc.; the unit switches just an LED as supplied. The circuit can be switched to latch "on". An ideal alarm circuit that cannot be easily fooled.
No. 80-200 Ultrasonic Movement Detector kit.
YDI Price $29.90
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Two Station Intercom kit
Two Station Intercom (or hard wired Listener for baby room etc). Two station units employ LM386 ICfs in each station. These need to be connected using a pair of wires (about 22 or 20 gauge solid). you could power the remote from the base unit if you run four wires. Each station has its own mike, speaker and amplifier. May be set up to monitor babyfs room etc..
No. 80-210 Two Station Intercom kit.
YDI Price $19.90
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OpAmp Function Generator
A very low cost and simple circuit to generate square, pseudo-sine wave and triangular waveforms in the audio frequency range. Uses a quad OpAmp type LM384. This is an educational kit and recommended to instructors and to the person wanting to understand electronics more thoroughly.
No. 80-230 OpAmp Function Generator kit.
YDI Price $14.90
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Logic Probe
An indispensable piece of equipment for testing and measuring digital equipment. Normally used for fault finding and testing but can also be a great help in design work or to see how digital equipment works. Switch for use in both TTL and CMOS. Detects very fast pulses. Output is 3 LED's and audio indicator.
No. 80-240 Logic Probe kit
YDI Price $14.90
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We offer a broad range of kits for beginners, intermediate and advanced levels of Electronics Knowledge
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Prices current 12/27/2006. Prices are subject to change without notice. The products shown above are typically stocked by "You-do-it" Electronics Center. We try to maintain a current listing of current products. Occasionally products which are out of production may be listed on our website. Please E-mail Sales@youdoitelectronics.com or Call for current availability. Prices are subject to change without notice. All orders are subject to acceptance by this company & our Vendor in accordance with its standard acknowledgement form. All prices are subject to all applicable State and/or Local sales taxes. Terms are MasterCard, Visa, Discover, or American Express or Check with order, unless other arrangements are made with our credit department.
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