Strobe Light

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Disco anyone? Actually, this strobe serves a much more useful purpose then making it look cool when you dance in the dark. You can use it to view fast moving objects, look for craks in PC boards (hold the strobe on the trace side of the board and look from the component side), and it is a great attention getter in a store window.



This is the schematic of the strobe light


Total Qty.
R1110 Meg, 1/4 Watt Resistor
D1, D221N4003 Silicon Diode1N4007
C1, C2210uF 350V Capacitor
C310.1uF 400 Volt Mylar Capacitor
T114KV Trigger Transformer (see "Notes")
FT1Flash Tube (see "Notes")
L11Neon Bulb
Q11106 SCR
S11115V 1A SPST Switch
MISC1Case, Wire, Line Cord


    Where To Get Parts).

  1. This ciruits is NOT isolated from ground. Use caution when operating without a case. A case is required for normal operation. Do not touch any part of the circuit with the case open or not installed.
  2. Most any diodes rated at greater then 250 volts at 1 amp can be used instead of the 1N4003's.

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Strobe Light
Friday, March 23, 2012 2:36:36 PM
What is the battery voltage needed to power this?
parts locater
Saturday, September 12, 2009 4:42:50 PM
Most all of theese parts can be found at Electronic goldmine .com if you look at the 9in strobe unit it will give you the pdf to get a schmatic of allmost the same curcuit shown here. You can get thr scr 106 at good luck all.mgbv
Strobe Light
Monday, May 25, 2009 3:42:15 PM
Steve - The "106" notation for the SCR is short form for any device that has the main number of 106. There are many variations of these SCRs that pertain to the package type, voltage rating and in some cases the current rating. A typical number would be TIC106D, however different manufacturers will have different prefixes. The author of the circuit has specified a "106" device probably due to it's characteristic low current gate drive requirements, but being triggered via neon bulb would allow you to use almost any SCR that you wanted. Choose one that suits the load you want to drive. Cheers
Strobe Light
Saturday, April 18, 2009 2:55:41 PM
i looked for this circuit too much And now i get it. thanks for your regard
Strobe Light
Monday, March 23, 2009 12:59:02 PM
Re: the SCR, to what does the 106 mean; I don't know what to look for when searching. Thank You, Steve
Strobe Light
Sunday, February 08, 2009 1:19:31 PM
Hi! Thanks for sharing your strobe light project. Could you share your source for the 4kv flash transformer and flash tube?
Strobe Light
Monday, November 17, 2008 8:28:08 AM
it works i made it
Larry Oatman
Strobe Light
Saturday, October 04, 2008 1:26:39 PM
Get a disposable flash camera, take the pictures, wind the film all the way into the cartridge(just like a 35mm film can), break open the camera, take the film in for processing, and take out the flash unit. The flash is powered by a AAA battery, which is stepped up to 330 volts by an electronic circuit. You can replace the AAA battery with a D battery for longer run time. And you can replace the battery with a new one when necessary. I have taken many of the strobe units and converted them to run on house current for my Halloween decorations.
Adrian James Flynn
Strobe Light
Thursday, June 12, 2008 6:34:33 PM
Where is the missing information in the "NOTES:" for the following from the parts list? (T1 1 4KV Trigger Transformer (see "Notes") FT 1 Flash Tube (see "Notes") )

(Editor's notes: Oops. Will correct with the next update. But both a generic parts. Any 4KV flash trigger will work, any small Xenon flash tube will work as well.)

Benedict Khoo
Portable Strobe Light
Thursday, June 05, 2008 6:31:05 AM
Hi there. I need to find a good way to build a strobe light circuitboard that is portable. i am doing mosquito research w a university, and we are testing electrophysiological responses. i am trying to see the effects of a strobe light, and so i need a portable strobe light device that is low-voltage and long-lasting (typically for 12 hours at least) and safe for other students to handle. any suggestions guys?
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