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  1. naldo

    0-30 Vdc Stabilized Power Supply

    This text is posted for me to http://www.electronics-lab.com/forum/index.php?board=13;action=display;threadid=196;start=165 ***************************************************** I don't understand like they where carried out the calculations of this original PSU from Mixos. I have carried out...
  2. naldo

    0-30 Vdc Stabilized Power Supply

    Hi my friend: I make the changes Full-Bridge rectifier 8A 200V C1 10000uF 50V Q2 TIP31C with heatsink R15 100 ohms R7 10W The measurment are: Not RLoad (not charge) 27V RLoad 100 ohms 10W 25V 0.25A RLoad 50 ohms 10W 23.8V Rload 25 ohms 10W 23.4V 0.55A RLoad 10 ohms 10W 19,8V 1.7A...
  3. naldo

    0-30 Vdc Stabilized Power Supply

    Hi Audioguru Ok this change I'cant make. R7 is 5W suggest more?? Q1 is BC548 You suggest change?? What dimension heatsink for Q2?? Thank's
  4. naldo

    0-30 Vdc Stabilized Power Supply

    Thanks, Thanks, Thanks.... R7 is open the PSU start I was very upset because my PSU didn't work What change do You suggest to make in the PSU??. The device TLE2141CP and MC34071AP is not able in my country but TIP31A and the other component is available Best regards AUDIOGURU
  5. naldo

    0-30 Vdc Stabilized Power Supply

    Hi!! Sorry for my english is only technic My PSU is original circuit. The PSU not start Led is ligh permanetly Volt across C1 (33.2V) Volt pin 6 (U3) and point 4(ground) (-5.8V) Volt pin 6 (U1) and point 4(ground) (11.5V) Volt pin 6 (U2) and point 4(ground) (-5.3V) Volt across R15 (3.9V) Volt...
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