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Thread: Valve Wizard MM valve PCB build

  1. #11
    Bigman80 Guest

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    Quote Originally Posted by Ali Tait View Post
    Looks good Oli, soldering looks tidy.
    Thanks Ali,

    Sent from my EVA-L09 using Tapatalk

  2. #12
    Bigman80 Guest

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    A quick check of the valve holders

    Variable resistors arrived today but they are too big. Balls.

    Nevermind. A quick chat reveals I've put the wrong caps in C1 and C21. Nothing major just frustrating!!

    Sent from my EVA-L09 using Tapatalk
    Last edited by Bigman80; 30-11-2017 at 17:33.

  3. #13
    Join Date: May 2008

    Location: Surrey

    Posts: 7,103
    I'm Rob.

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    A trick of the light looks like the left valve is glowing.....as if by magic
    Buy Bose...And get your parking validated!.

    https://youtu.be/ZCBe7-6rw4M

    No Highs...No Lows....It Must Be Bose!

  4. #14
    Bigman80 Guest

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    Cheeky update

    Manage to get all the components into the PCB now. The two red WIMA caps are still to come out in place of better tolerance ones but that will be done tomorrow.

    The heatsink (?) on the left of the PCB will be mirrored by another on the right which I'm hoping adds some protection from interference but I could be talking utter shit.

    Very happy with the board so far. If it works, I'll be happier

    Sent from my EVA-L09 using Tapatalk

  5. #15
    RothwellAudio Guest

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    Quote Originally Posted by Bigman80 View Post
    The heatsink (?) on the left of the PCB will be mirrored by another on the right which I'm hoping adds some protection from interference but I could be talking utter shit.
    The heatsinks won't do anything to reduce noise pickup - just having the case earthed to screen the circuit will be fine.

  6. #16
    Bigman80 Guest

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    Quote Originally Posted by RothwellAudio View Post
    The heatsinks won't do anything to reduce noise pickup - just having the case earthed to screen the circuit will be fine.
    As I suspected, I was talking shit

    Thanks for the info, it does say that in the build guide.

    Sent from my EVA-L09 using Tapatalk

  7. #17
    Join Date: Feb 2014

    Location: Huntingdonshire

    Posts: 1,413
    I'm Andrew.

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    Cheeky? Are you mooning us as you type?

    Seriously though, looks like good work to me. Neat soldering. I have to say its a massive case, good quality aluminium cases can be had for less than a tenner from our Chinese friends.

  8. #18
    Bigman80 Guest

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    Quote Originally Posted by agk View Post
    Cheeky? Are you mooning us as you type?

    Seriously though, looks like good work to me. Neat soldering. I have to say its a massive case, good quality aluminium cases can be had for less than a tenner from our Chinese friends.
    I agree on the soldering

    The case is too big at present, I agree BUT it's a temporary measure. Just something to see if it works, how it sounds and if it's worth boxing up nicely.



    Sent from my EVA-L09 using Tapatalk

  9. #19
    Join Date: Feb 2014

    Location: Huntingdonshire

    Posts: 1,413
    I'm Andrew.

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    Good man.

    I suspect with Alan's input you've constructed a Phono stage supreme.

  10. #20
    Bigman80 Guest

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    Quote Originally Posted by agk View Post
    Good man.

    I suspect with Alan's input you've constructed a Phono stage supreme.
    It would be nice to get a good quality sound out of it but it remains to be seen

    Sent from my EVA-L09 using Tapatalk

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