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Pioneer 1000A rectifer diode question

Discussion in 'Pioneer Audio' started by gkargreen, Sep 15, 2018.

  1. gkargreen

    gkargreen Active Member

    Messages:
    480
    Location:
    Fairfax, VA
    Hi, I am working on this set, lots of recapping, and one question I have regards the caps across the voltage doubler diodes, I assume they are snubbers for the switching noise in the diodes, correct? If I am going to replace the diodes with UF diodes, would I still need to include those caps? Thanks
     

     

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  2. avionic

    avionic " Black Knights " Subscriber

    Messages:
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    Location:
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    I would.
     
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  3. Watthour

    Watthour Electron Rancher - JS3600

    What unit is this? A typical voltage doubler MUST have caps to charge between half-cycles to float the potential up to the desired peaks.
     
  4. avionic

    avionic " Black Knights " Subscriber

    Messages:
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    Location:
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    I'm thinking he is referring to the bridged rectifier.
     
  5. Hyperion

    Hyperion Roobarb & Custard Subscriber

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    Hertfordshire, UK
    'Pioneer' 1000A :idea:
     
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  6. Watthour

    Watthour Electron Rancher - JS3600

    You are probably correct, which is the reason for the inquiry as to what the unit actually is.
     

     

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  7. avionic

    avionic " Black Knights " Subscriber

    Messages:
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    :dunno::dunno:
     
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  8. Hyperion

    Hyperion Roobarb & Custard Subscriber

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    :dunno: :D
     
  9. larryderouin

    larryderouin Turn it UP, POP? PLLUUEEEZZZZZEE Subscriber

    Messages:
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    Location:
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    It's a Sansui 1000A. And there are paralleled caps on the rectifier diodes to the 1st doubler cap. As avionic stated and I agree with him, put them on.
     

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