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    ST-35 C1 cap

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    Timmyjoe

    Posts : 4
    Join date : 2015-01-27

    ST-35 C1 cap

    Post by Timmyjoe on Tue Jan 27, 2015 5:38 pm

    On my ST-35 the c1 cap is missing on both boards, I have also noted a jumper placed there on other boards. Why has this been done?

    GP49

    Posts : 778
    Join date : 2009-04-30
    Location : East of the sun and west of the moon

    Re: ST-35 C1 cap

    Post by GP49 on Tue Jan 27, 2015 7:20 pm

    If you want to eliminate the high pass filter created by C1 and R2 and you are absolutely positive that there is no DC on your source, C1 can be omitted.

    Timmyjoe

    Posts : 4
    Join date : 2015-01-27

    Re: ST-35 C1 cap

    Post by Timmyjoe on Tue Jan 27, 2015 9:20 pm

    Thanks for the quick reply!
    I am going to reinstall the C1 cap as I am using/testing various pre-amps.
    Should this cap be replaced if I am using a PAS 3X?

    GP49

    Posts : 778
    Join date : 2009-04-30
    Location : East of the sun and west of the moon

    Re: ST-35 C1 cap

    Post by GP49 on Tue Jan 27, 2015 11:11 pm

    A properly built, stock PAS-3x in good working order should have no DC on the outputs.

    If someone has modified it, all bets are off.

    Timmyjoe

    Posts : 4
    Join date : 2015-01-27

    Re: ST-35 C1 cap

    Post by Timmyjoe on Wed Jan 28, 2015 2:42 am

    Thanks again for reply...
    I'm just going to add the C1's and been done with it.
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    Captain Coconut

    Posts : 218
    Join date : 2009-10-14
    Age : 65
    Location : Great White North

    Re: ST-35 C1 cap

    Post by Captain Coconut on Wed Jan 28, 2015 1:27 pm

    Doesn't R2 and C2 make for a low pass filter? Could that be eliminated as well?

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