S T R O B O S C O P ELIGHT EFFECT KIT

• Easy to build stroboscope for general applications• Flash frequency: 5 to 15 flashes per second• Power supply: 110VAC• Power consumption: 13W max.• PCB dimensions: 50 x 75mmmodifications reserved

K5300

H5300U-ED1

Velleman Kit nvLegen Heirweg 33

B9890 GavereBELGIUM

STROBOSCOPEToday, you can see a lot of these quick flashing lights abovethe dance floor, giving the impression that everybody is dan-cing, making brusque movements. Those lamps are called“stroboscopes”. In fact, a stroboscope is just a flashbulbwith an adequate power supply and a trigger circuit of whichthe frequency, in most cases, is adjustable. The frequencyof this stroboscope is adjustable between 5 and 15 Hz.

Some applications:• Photo amateurs: making snapshots• Film amateurs: lightning imitations for films• Choreography• Lighting in discotheques• Slow motions• Shop-window lighting

Technical data:• Power supply: 110 VAC• Absorbed current: 13W max.• Flash frequency: 5 to 15 Hz• Dimensions: 50 x 75 mm ( 2 x 3 inch )

Construction:WARNING: ALL COMPONENTS ARE CONTINUOUSLYCONNECTED TO THE MAINS. DO NOT TOUCH THEMUNDER ANY CIRCUMSTANCES.IT IS ABSOLUTELY NECESSARY FOR YOU AND ANYFUTURE USER TO MAKE SURE NOBODY CAN REACH THEPARTS.BOX THE UNIT IN INSULATED HOUSING ONLY

SOLDERING INSTRUCTIONS:Use a small soldering iron of 40W max.Use thin (1mm) solder tin.Careless soldering always causes problems.

Heat the component lead and applysoldering tin, make sure that the solderhas a shiny look.

Cut the component lead, do not cut inthe soldering tin.

This is how a good solderinglooks like

Mount R1 to R3, 100K 1/4W re-sistors. These are all the sameresistors with the color codebrown, black, yellow.

Mount the diodes D2 and D3,1N4007 type diodes. Check for thepolarity (the cathode is indicated bya strip on the p.c.b. and on the di-ode)

Mount the diac D1, the diaclooks like a diode but has no

polarity.

Mount R4 the high power 330ohm/5Wresistor. Pay attention. Do not mount

this resistor flush to the p.c.b. Leave a2mm (1/10") clearance.

Mount C1, a 0.1uF/400V capaci-tor. This type of capacitor has nopolarity.

Mount the two pole MAINSscrew connector at position J1

Mount the trigger coil L1

Mount C2, a 10µF electrolytic ca-pacitor: Check for the polarity!

Mount the triac TR1.Depending on the type, lookat the picture for correctmounting.

Mount C3 and C4 two 22uF/350V electrolytic capacitors.Check for the polarity.

Mount RV1, a 470K linearpotentiometer. Mount this poten-

tiometer with its shaft turned tothe outside of the print.

Remark:Bend the leads carefullybefore mounting the tubehorizontally.

At last, mount the strobe tube where marked “TUBE”.CHECK FOR THE POLARITY. The connection marked with ared strip or dot has to correspond to the “ + “ of the print.Depending on the way the kit will be incorporated in a housing,mount the tube horizontally or vertically, see the pictures.

Horizontal mount

Vertical mount

Usage:♦ Connect the 110VAC power supply to the points marked“MAINS”

♦ The flash frequency may be adjusted, between 5 and 15flashes per second, by means of RV1.♦ A location on the print is made to add a reflector just behindthe strobe tube.♦ It is highly recommended to put the unit in a well insulatedhousing to avoid touching the components because of thevery high voltages. In fact, voltages up to 3kV run through theflash tube and the circuit is directly coupled to the mains. It isreally unhealthy to touch these voltages !!!

WARNING: ALL COMPONENTS ARE CONTINUOUSLYCONNECTED TO THE MAINS. DO NOT TOUCH THEMUNDER ANY CIRCUMSTANCES.

Velleman Kit nvLegen Heirweg 33

B9890 GavereBELGIUM

We guarantee the good operation of this kit when correctly assem-bled and used. In case of trouble you can send the kit to the dealerfor repair. The repair is for free when the trouble is caused byproduction fault.We are not responsible for damage of any kind caused by the failureof a kit.