Recent content by Joostp

  1. J

    BAT VK-P5 power supply capacitor leak and sparks

    Thx, i contacted BAT but any tips or info would be helpfull.
  2. J

    BAT VK-P5 power supply capacitor leak and sparks

    Some months ago i bought a BAT VK-P5 phono pre-amp to use with my Sondek. When i powered it up for a listening session this afternoon sparks came out the unit! It turned out to be leaking power supply capacitor (470uF 250v) that shortend two leads on the circuit board. It looks repairable so i...
  3. J

    Modding my ARC Ref Anniversary

    The black 'thingies' are damping pads, ARC places them on some caps to damp vibrations and i placed some bitumen pads on all the caps. You can get it here: https://www.audiophonics.fr/en/damping-c-197.html. The comparison with the LS28 still needs to be planned, busy with work and the Covid...
  4. J

    Modding my ARC Ref Anniversary

    Nothing else is planned. Sure, you said this before as i can remember........ Looks great, let us know what it sounds like.
  5. J

    Modding my ARC Ref Anniversary

    I got hold of some 0,56 uF Copper max caps for my LS27. Size was a problem so i had to install them upright. It is a step forward compared to the 10uF Mundorf Evo's i had in there which souned a bit bright Before i installed them i used my new 'break-in device' (courtesy of...
  6. J

    Modding my ARC Ref Anniversary

    The EVO's was one of the first mods i did not wanted to change any values then. I believe that with my REF75 power amp a coupling cap 0.33 uF is sufficient and a Copper Max in that capacity would fit easily. I am not (yet) ready to start replacing Wima's, maybe in few months. Keep us posted on...
  7. J

    Modding my ARC Ref Anniversary

    I was also inspired and replaced most of the resistors in my ARC LS27 a week ago. Could you tell me a bit more on how the break-in period for the resistors progressed?
  8. J

    ARC REF75 problem with VU-meter lighting

    Thanks, i will contact ARC again and ask for a solution. I would still like to have a schematic for future modifications, does anyone have one or have a source for this?
  9. J

    ARC REF75 problem with VU-meter lighting

    Thanks for your replies. I contacted ARC and they sent me 4 replacement leds for $10 each (!!) and this did not solve the problem. I checked all wiring and tracing as best as i could and this seems to be ok. So i think it must be somewhere in the power supply to the leds. I switched the lights...
  10. J

    ARC REF75 problem with VU-meter lighting

    Hi, I have been enjoying my ARC REF75 amp and LS27 pre for a some years now. The REF75 is mostly original and i have only replaced the tubes with KT150 and reflectors 6h30. My LS27 has new caps in the power supply, some resistors replaced, new coupling caps and some other tweaks. For some...
  11. J

    Optimising dedicated Hi-Fi mains supply

    Have you thought of installing an isolation transformer? I have built my own with a 3000VA transformer and some mains filters and it really improved SQ.
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