Another XO done

ben62670
ben62670 Posts: 15,969
edited June 2008 in Vintage Speakers
I did another XO for a Polkie. I used Dayton caps, and resistors.
R1 is located on the bottom. The 12, 20, 40 uf caps are all stacked:) The wire I used for the jumpers is Silver of coarse;)
XOold.jpg?t=1212441115
XOnew.jpg?t=1212441466
Ben
Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
Thanks
Ben
Post edited by ben62670 on
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Comments

  • billbillw
    billbillw Posts: 6,846
    edited June 2008
    What speaker is that for? Looks just like my 1C xover, but there is no 2.7ohm resistor in the R1 position.
    For rig details, see my profile. Nothing here anymore...
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  • ben62670
    ben62670 Posts: 15,969
    edited June 2008
    R1 is relocated on the bottom;)
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben
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  • billbillw
    billbillw Posts: 6,846
    edited June 2008
    Did you just go with the 4.3 uF from Dayton? If so, I have some Dayton 0.1uF Film/Foils that would go nicely in parallel and bring it up to the original spec of 4.4uF. Let me know if you want to try them.
    For rig details, see my profile. Nothing here anymore...
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  • ben62670
    ben62670 Posts: 15,969
    edited June 2008
    I used the 4.3uf. The .1uf isn't necessary. The originals were 20% caps, and these are 5%. The 4.3 would test well within spec.
    Thanks for the offer.
    Ben
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben
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  • billbillw
    billbillw Posts: 6,846
    edited June 2008
    ben62670 wrote: »
    I used the 4.3uf. The .1uf isn't necessary. The originals were 20% caps, and these are 5%. The 4.3 would test well within spec.
    Thanks for the offer.
    Ben

    20%? You sure? I thought they were like 5 or 10%. Regardless, using a 4.3 is only 2.2% off, but if that 4.3 is 5% off from its value (the Dayton's are 5% tolerance), you could be off by up to 7.1%, which is more than I would be happy with.
    For rig details, see my profile. Nothing here anymore...
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  • zingo
    zingo Posts: 11,258
    edited June 2008
    Nice work! I like those ICs on the table too... :D
    Jake
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  • dcmeigs
    dcmeigs Posts: 708
    edited June 2008
    Does the board snap back onto the inductor with the original plastic fasteners with R1 on the bottom?
    The world is full of answers, some are right and some are wrong. - Neil Young
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  • danger boy
    danger boy Posts: 15,722
    edited June 2008
    nice work as always... :)
    PolkFest 2012, who's going>?
    Vancouver, Canada Sept 30th, 2012 - Madonna concert :cheesygrin:
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  • ben62670
    ben62670 Posts: 15,969
    edited June 2008
    dcmeigs wrote: »
    Does the board snap back onto the inductor with the original plastic fasteners with R1 on the bottom?

    No problems with clearance at all;)
    Ben
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben
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  • jmackenzie3
    jmackenzie3 Posts: 7
    edited June 2008
    Yeah looks great.

    All this talk about updating xovers has got me going now. Time to do my 7Cs...
    You can get a lot more done with a kind word and gun, than you can with a kind word alone.
    - Al Capone
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  • nspindel
    nspindel Posts: 5,343
    edited June 2008
    Ben, you doing the inductor too?
    Good music, a good source, and good power can make SDA's sing. Tubes make them dance.
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  • ben62670
    ben62670 Posts: 15,969
    edited June 2008
    nspindel wrote: »
    Ben, you doing the inductor too?

    Not on this set. These aren't mine;)
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben
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