Milestone Technologies

a division of Milestone Technologies, Inc. "Everything for the Morse Enthusiast!"

We are now distributing a limited range of the well-known kits from Electronic Rainbow. Please note that our minimum order on credit card purchases is $10.00.

Learn to send Morse code!

Build this easy little kit and learn to send Morse code! It's an LM555 timer-based code practice oscillator or "beeper." Easy to build kit is complete with printed circuit board, all parts including off-board speaker and battery clip , schematic, and instructions. All you need to add is a battery and an inexpensive telegraph key-- e.g. the AMECO K-1 or K-4.  Power requirement +9VDC, size 2.5"  x 1.5"
 

OSC-3 Code practice oscillator  kit. $6.95

Stereo Audio Amplifier Kit

This kit teaches how stereo amplifiers take a small signal and "magnify" it to drive two small speakers or stereo headphones. It's based on two LM386 Low Voltage Power Amplifier and one LM1458 operational amplifier IC. This kit gives you a good quality Stereo Amplifier.  You can use it as an intercom, a booster amp for portable CD players, or in your robot.  You can also use it to add sound effects for plays or practical jokes.  Power requirement is 5 to 10v DC, size 2.25" x 2.75"

1W Audio Amplifier Kit

 This amplifier will operate from 3 Volts. It makes a perfect companion for your portable audio player. This amplifier will provide up to 1.2 Watts output power. Complete with a volume control. This will work great on any project where you need to amplify an audio signal. You supply an 8 ohm speaker for output.
Power requirement: 3 to 18v DC.
Printed Circuit Board Size: 1.15" x 1.15"

Sine waves are "pure" audio tones typically used to test audio equipment. This audio oscillator kit produces sine wave audio signals. Output  amplitude and frequency are adjustable. You can use this kit to learn the "signal injection" method of audio-circuit troubleshooting  The manual gives a lot of detail about the operation of the circuit (it's a Wien Bridge Oscillator using an LM1458 op-amp) and detailed roubleshooting instructions.  Power requirement +9 VDC, size 2.25" x 2.75"
 

EBAO-3 Audio Oscillator Kit. $9.95

STOP LIGHT CONTROLLER KIT

This kit makes model train displays look more real, it might even help your bar or party room. You can control up to three 4 way intersections with one kit. We supply the instruction manual, controller PC Board and all the parts needed to make 3 - 4 way intersections. If you need to control larger lamps you can connect a relay or an I/O module to each output, each output will supply up to 60 mA. Power requirement is 7.5 to 18v DC, size 2.25" x 2.75"

STOP-1 Stoplight Controller  $17.95

DC Voltage Monitor

Similar to the VM-2, the VM2-110 unit reads your AC line voltage. Build both for your shack and check both at a glance!

Flashing LEDs!

These are just great for a "simulated burglar alarm" and to dress up kids' toys, and probably other uses we haven't thought of. The LEDs flash alternately. The MB-3 kit includes two yellow, two red, and two green LEDs so you can choose your own "style;" while the RB-3 contains two BIG (5mm) red LEDs. And at this price, you need two!

Power requirement 9 to 12v DC. SIZE: .75" x 1"

Nail that fox with this VHF/UHF Radio Direction Finder!

This is "SEARCHER," a direction finder with antenna for any UHF/VHF Amateur Radio or Scanner. Great for fox hunting, finding hidden transmitters that are raising havoc with your repeater ... Look out FOX! The "Searcher" connects to your radio through the antenna jack. Tune your radio to the frequency of the transmitter you are trying to locate and you'll hear a tone and the transmit modulation at the same time. When the tone nulls (becomes silent), you're pointing the Searcher at the transmitter! To further check your progress the S-meter on the radio will show an increase in signal strength. The "Searcher" has an audio tone control and comes with a case to house the electronics, 4 antenna elements, and all the parts to construct a VERTICAL DI-POLE array on a 24" boom. Everything you need except the 9v battery!

SDF-1 VHF/UHF direction finder kit (complete) $44.95

Don't lie to me!

Check the truth of those claimed contest scores and DX fairy tales with this simple skin-resistance lie detector kit! This kit can be great fun at parties. Lie and an audible tone will change, the more you lie the louder the tone. When you lie, your hands sweat, and this kit allows you to measure the change in your skin resistance. A very slight amount of change will cause the tone to increase in frequency. Power requirement 6 to 12v DC. SIZE: .8" x 1.2" CAUTION! Evidence obtained with this unit will not be recognized in a court of law.

LD-1 Skin resistance lie-detector board kit. $9.95

Turn your shack into a disco!

Or keep those pesky aircraft away from your tower, with this strobe light kit. Use it as an emergency light for your auto, radio or tower, use it for phtographic stop-motion work, or use it on your bicycle. The ST-1 has a variable flash rate, and the power requirement is 6 to 12v DC. SIZE: 3.5" x 1.9"

ST-1 Strobe light board kit. $11.95

Voice Operated Switch

Use sound to turn  something on or off.  Or on and off!  This VOX circuit can be used to control a radio, tape recorder, or alarm.  With 100mA output the VOX-1 will operate many devices directly, or add a relay or power transistor to handle higher current applications. Circuit board size is 1.5 x 3" and the circuit requires 7.5 to 18VDC.

VOX-1 Voice Operated Switch board kit. $6.95

IR Transmitter and Receiver

This two-board kit transmists a modulated 40KHz IR signal to a distance of 6 to 8 feet.  Use it for a door alarm, or to turn things on and off by remote control.  The output can be configured for normally on or normally off operation.  You can also use it to test IR remote controls.  It runs on 6-12VDC and the transmitter and receiver boards measure 1 x .75" anmd 1.4 x 1.2" respectively.

IR-2 Infrared Transmitter/Receiver kit. $22.95

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