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    IR2153 Output Voltage Pulsing Problem?

    Hi all friends I make this circuit worked but output voltage pulsing. Output load lamp is flashing constantly. What could be the reason for this? http://www.dosya.tc/server8/nVBZuu/video.rar.html
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    450W Power Amplifier Project (+/-55V) + PCB

    My 450W Power amplifier project :) Features Output Power: 4Ohm 450W RMS Supply: +/-55V DC 600W Transformer Power Transistors: 5 X 2SC3856 and 2SC1492 (or TIP35 TIP36)
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    Easy method of removing ferrite core

    An easy method to remove the ferrite core. Contact or even move to the core of the lamp series, and wait 1 minute. Use a minimum of 65W lamp. Remove the ferrite core heated Be careful when!
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