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  1. Re: Circuit diagram needed for Durst power supplies EST 301 and EST 450

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  2. Re: Circuit diagram needed for Durst power supplies EST 301 and EST 450

    214561
  3. Re: Circuit diagram needed for Durst power supplies EST 301 and EST 450

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    These photos are after replacing the electrolytic capacitors and two power resistors.
  4. Re: Circuit diagram needed for Durst power supplies EST 301 and EST 450

    I will take additional photos today or tomorrow. But it seems that in general, everyone is right and it is better to switch to a modern solution with LEDs or replace the 120v/300w lamps in the color...
  5. Re: Circuit diagram needed for Durst power supplies EST 301 and EST 450

    Paul Ron,
    it is difficult to determine the cause of such a load on these resistors without the circuit.
  6. Re: Circuit diagram needed for Durst power supplies EST 301 and EST 450

    Hello everybody! Has anyone had any success repairing EST 301 power supply? I replaced three electrolytic capacitors and two burnt-out power resistors R45 and R46 with new ones, but the device didn't...
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    Re: durst power supply EST 1000N

    My EST 1000 is now working! The electronics engineer repaired it. He replaced the capacitors С6, с12, с31, с52, с60, с61.
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    Re: durst power supply EST 1000N

    Hello,
    help me too with a copy of schematics for DURST EST 1000. The lamp does not light up!
    Thanks
    macmicus@gmail.com

    When the EST1000N stabilizer is turned on, the scale backlight on the...
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    Fujinon SF 420/5.6 need help

    I have bought recently Fujinon SF 420/5,6 but without any grid disk. Have anyone these grids and is it possible to make a layout of holes on the disk for me? I can myself to drill the necessary holes...
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