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  1. X

    Low-pass Filter?

    HI AUDIOGURO, is there a replacement for CD4047 coz I cant find it here in manila thanks
  2. X

    Low-pass Filter?

    Thanks audioguro can I still use the IC1 and IC2 but I have to use another IC ( to convert  24VDC to 12V DC)? Andwhat IC( model number) should I use. Because I dont know a site to find  a datasheets. thanks
  3. X

    free schematics links, great page

    plss can you give me links to a samsung dvd player. last month, my dvd player was damage. when I open the case,  an IC was damage and I cant read the IC number
  4. X

    Low-pass Filter?

    Good day Audioguru. I've read all the topics posted and they are all helpfull. Im a mechanical engineer by profession and I like to learn some electronics as well.   My question is how can I make the 500W inverter to use a 24V dc power input? I will Patiently waiting for reply     thanks in...
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