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LED Strobe Light Ramsey Electronics Model No. LEDS1 Super-Bright LEDs pulse to your music. Switch over to stroboscope mode for a super-blue hypnotic flash! Use the LEDs as a super flashlight. The possibilities are endless! • Bright blue stroboscope without high voltage or glass tubes.
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2003 by Ramsey Electronics, Inc. 590 Fishers Station Drive, Victor, New York 14564. All rights reserved. No portion of this publication may be copied or duplicated without the written permission of Ramsey Electronics, Inc. Printed in the United States of America. LEDS1• 2...
Manual Price Only $5.00 KIT ASSEMBLY AND INSTRUCTION MANUAL FOR LED Strobe Light TABLE OF CONTENTS Introduction ............4 LEDS1 Circuit Description ......... 4 “Learn-As-You-Build” Kit Assembly ....6 Parts List ............7 Assembly Steps ..........9 Setup and Testing ...........12 Troubleshooting Guide ........13 Main Board Parts Layout Diagram ....16...
Both high and low pass filters allow the LEDS1 to flash to treble or bass. And for even more expandability, there is an external trigger jack that allows you to control the LEDS1 with your own external source or connect two LEDS1’s together.
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For example, consider a piece of music that has a drum beat. The LEDS1 is set to low-pass the audio. The drum beat makes it through the filter, is amplified by U1:B, and triggers U2. Now, you might be thinking: “Isn’t sound a sine wave? Every time the audio reaches a...
RAMSEY Learn-As-You-Build KIT ASSEMBLY There are numerous solder connections on the LEDS1 printed circuit board. Therefore, PLEASE take us seriously when we say that good soldering is essential to the proper operation of your kit. • Use a 25-watt soldering pencil with a clean, sharp tip.
LEDS1 MAIN BOARD PARTS LIST The main board is the larger of the two. Sort and “check off” the components in the boxes provided. We do our best to pack all our kits correctly but it is possible that a mistake has occurred and we missed a part. Please note that physical descriptions of parts are for those currently being shipped.
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3.5mm stereo jack (J3) RCA jack (J1) pushbutton switches (S1,S2,S3) double sticky foam tape 4 inches LEDS1 LED BOARD PARTS LIST The LED board is the smaller of the two. RESISTORS 68 ohm resistor [blue-gray-black] (R31,R32,R33,R34) 150 ohm resistor [brown-green-brown] (R35) SEMICONDUCTORS Vishay Telux™...
5. Install RCA jack, J1. 6. Install J3, 3.5mm stereo jack, next to J5. This jack is for external triggering and connecting two LEDS1’s together. 7. Install R20, 100K ohm resistor [brown-black-yellow] next to J1. 8. Install C14, .1 uF ceramic disk capacitor [marked 104], next to R20.
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39. Install R7 and R16, both 300 ohm resistors [orange-black-brown], at the top of the board. 40. Install S1, S2, and S3, pushbutton switches, at the top of the board. 41. Install Q1, 71F7034_H N channel MOSFET, in the middle left of the LEDS1• 10...
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LED board. Be sure that the LEDs can take 50ma of current if you aren’t using Telux LEDs. 48. Install R35, 150 ohm resistor [brown-green-brown]. It is a large resistor so you’ll have to mount it standing up. LEDS1• 11...
LEDS1 to compensate. Another cool thing to try is to go into a dark room and start your LEDS1 flashing. Now move around in front of it, or have a friend do it. You now have your own mini disco! Let’s test out the audio mode.
You will get a blinding blue flashlight, even more so with the Ramsey LEDS1-LG 20 LED board! You might want to keep an eye on the board if you’re using it that way though, since the LEDs can get rather warm and you wouldn’t want to burn them out.
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The stereo jack plugs into jack J3 on the LEDS1 main board. To do this you need to solder up a cable like you did earlier for the 9 LED board that came with the LEDS1. The only difference is that this time you will solder together 2 stereo plugs that have 3 pins instead of 2.
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3.5mm cable described above. One LEDS1 is the “master” that drives the other LEDS1, or the “slave”. Set the master to stroboscope or audio mode and the slave to audio mode. The slave will now flash synchronously with the master.
'1K ohm' resistors are actually the 'missing' 10 K parts ("Hum-m-m, I guess the 'red' band really does look orange!") Ramsey Electronics project kits are packed with pride in the USA. If you believe we packed an incorrect part or omitted a part clearly indicated in your assembly manual as supplied with the basic kit by Ramsey, please write or call us with information on the part you need and proof of kit purchase.
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LEDS1 LED STROBE LIGHT Quick Reference Page Guide Introduction to the LEDS1 ......... 4 LEDS1 Circuit Description ........ 4 Parts List ............7 Parts Layout Diagrams ....... 12,14 Schematic Diagram ........13,15 Troubleshooting Guide ........17 Ramsey Kit Warranty ........23 REQUIRED TOOLS •...