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    Power cord bypass capacitors

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    Dale Stevens

    Posts : 77
    Join date : 2014-07-06
    Age : 67
    Location : Loris, SC

    Power cord bypass capacitors

    Post by Dale Stevens on Mon Sep 07, 2015 4:56 pm

    Are these really needed? I have a PAT 5 on the bench that has 50vac or so on the chassis to earth grd. Also meas my 19" rack
    and I see almost 30vac on the metal. (also has a PAT 5 as the main pre). You may notice that the PAT 5's were always powered up, the power sw only applied ac to the swithed outlets. Schematics here @ Bob's sticky. http://dynacotubeaudio.forumotion.com/t2-32-free-dynaco-tube-and-solid-state-assembly-manuals-available-for-download-links-inside

    Can these caps be deleted? I also have a Dyna PAT 4 that has no caps and is almost zero.
    I have reversed the power cords but no change. That's all, Dale

    Dale Stevens

    Posts : 77
    Join date : 2014-07-06
    Age : 67
    Location : Loris, SC

    Re: Power cord bypass capacitors

    Post by Dale Stevens on Wed Sep 09, 2015 4:15 pm

    Have I been BANNED?? Dale


    Bob Latino
    Admin

    Posts : 2374
    Join date : 2008-11-26
    Location : Massachusetts

    Re: Power cord bypass capacitors

    Post by Bob Latino on Wed Sep 09, 2015 4:47 pm

    Hi Dale,

    You haven't been banned but this forum is for Dynaco TUBE Audio .. You are asking a question about Dynaco solid state gear .. I am not sure about the correct answer to your question and evidently other's are also not sure - SO - you are getting no response.

    If someone here is familiar with both the Dynaco PAT-4 and PAT-5 solid state preamps, maybe you could help out here. I can't say why you are getting 50 VAC on your Dynaco PAT-5's chassis ? I am not familiar with the grounding schemes on either preamp.

    Bob

    Dale Stevens

    Posts : 77
    Join date : 2014-07-06
    Age : 67
    Location : Loris, SC

    Re: Power cord bypass capacitors

    Post by Dale Stevens on Thu Sep 10, 2015 3:31 pm

    Thx, Bob. I'll go ahead and clip the cap leads and give it a test. Dale

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