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Marantz 140 Amp

Discussion in 'Marantz Audio' started by Dearslayer, Oct 12, 2018.

  1. Dearslayer

    Dearslayer AK Subscriber Subscriber

    Messages:
    819
    Location:
    Ontario Canada
    Hey all.. been away for awhile pursuing other interest but now the days are getting shorter and the nights longer I figured I’d get back into the Marantz audio that I do enjoy so much. Funny how when you get away from something for a while that it feels like starting from the beginning all over again. Anyway I have a set of Marantz separates …3200 Pre/ 140 Amp/ 112 Tuner…. that I acquired some time ago and I want to give them a fresh start and I want to start with the 140 amp. I just started the other night and replaced the meter lights with LED’s and new velum. I pulled the left side amp to have a look see what I needed in the way of electrolytic caps and I believe I already have what I need for it. I’ve searched some threads looking for opinions of what to best use to replace the large single filter cap and there seems to be a few different suggestions but all seem to be a little complicated for someone with limited electronic experience like myself. What might be the best ( easiest ) cap (s ) to replace this with? I’d be more than happy with any and all suggestions that might help with not just the filter cap, but anything at all.
     

     

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  2. bryans12v

    bryans12v Marantz Junkie Subscriber

    Messages:
    1,353
    Location:
    Hudson Valley, NY
    The 140 has vellum behind the meters?
     
  3. Dearslayer

    Dearslayer AK Subscriber Subscriber

    Messages:
    819
    Location:
    Ontario Canada
    Yep mine does.
     

    Attached Files:

  4. Mico

    Mico Active Member

    Messages:
    355
    Location:
    Montreal
    For the dual caps; I do not remember the dimensions and value of 140`s dual cap but you should be able to
    find two small computer grade caps that fit vertically. Sides can be adjusted by water pipes insulation foam. The rest is patience...
    And you are lucky to have just one ;).

    Marantz Dual caps.jpg
     
  5. Dearslayer

    Dearslayer AK Subscriber Subscriber

    Messages:
    819
    Location:
    Ontario Canada
    Mico.... I'm not sure I understand why I would need the stuff some caps. The 140 has one large filter cap and was hoping to purchase new filter caps to just fit in place. Is this not the case?
     

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  6. Mico

    Mico Active Member

    Messages:
    355
    Location:
    Montreal
    Sorry I thought you knew it was a dual core capacitor or in simpler words two caps stuck in one can. Those "duals" are out of production eons ago, one option is to stuck two caps in the same case (as on my pictures) and use the same wiring scheme.
    Or make small custom PCB and install two discrete caps. It is bit tight there in 140 so I would rather go for stuffing the original case. As you can see dual caps have three terminals and if you opt for the second solution you have to properly interconnect two discrete capacitors. Do not be confused with my first post, it was 2330B with two dual capacitors, you have to deal with only one.


    2330B dual caps.jpg


    View attachment 1304857
     
    Last edited: Oct 14, 2018 at 11:33 PM

     

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  7. catrafter

    catrafter Marantz Specialist Subscriber

    Messages:
    6,142
    Location:
    Montana
    Since there is so much room in the filter capacitor area, I install two in place of one.
    Get new clamps to match the filter capacitors.

    Tom
    140 Cap.JPG
     
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  8. Dearslayer

    Dearslayer AK Subscriber Subscriber

    Messages:
    819
    Location:
    Ontario Canada
    Hi Tom.
    I was thinking the same thing but there's a lot of wires to connect and its a little intimating for me but I'm sure I could do it with some coaching by the fine folks on this forum. Can you recommend which caps would be best either from Mouser, or Parts Connexion would be even better because I have one really close to me.

    GT.
     
  9. catrafter

    catrafter Marantz Specialist Subscriber

    Messages:
    6,142
    Location:
    Montana
    Check your PM.

    Tom
     

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