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Thread: Valve Wizard MM valve PCB build

  1. #11
    Join Date: Nov 2015

    Location: Wolverhampton

    Posts: 5,192
    I'm Oliver.

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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
    Analogue: Technics SP10 MK2 > Phonomac AT-1010 tonearm > Ortofon Kontrapunkt b > Wizard Jfet MC Valve Phonostage (Telefunken Valves)
    Digital: Firebottle modded Xiang Sheng DAC (Telefunken Valve)
    Amplification: Slagle AVC Passive Preamp & Firebottle Monoblocks (Telefunken Valves)
    Cables: Fisual S-Flex Speaker Cable & SPOTFIRE IC Cables Throughout
    Speakers: Pioneer CS-77A

  2. #12
    Join Date: Nov 2015

    Location: Wolverhampton

    Posts: 5,192
    I'm Oliver.

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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.
    Analogue: Technics SP10 MK2 > Phonomac AT-1010 tonearm > Ortofon Kontrapunkt b > Wizard Jfet MC Valve Phonostage (Telefunken Valves)
    Digital: Firebottle modded Xiang Sheng DAC (Telefunken Valve)
    Amplification: Slagle AVC Passive Preamp & Firebottle Monoblocks (Telefunken Valves)
    Cables: Fisual S-Flex Speaker Cable & SPOTFIRE IC Cables Throughout
    Speakers: Pioneer CS-77A

  3. #13
    Join Date: May 2008

    Location: Surrey

    Posts: 6,052
    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!.

  4. #14
    Join Date: Nov 2015

    Location: Wolverhampton

    Posts: 5,192
    I'm Oliver.

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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
    Analogue: Technics SP10 MK2 > Phonomac AT-1010 tonearm > Ortofon Kontrapunkt b > Wizard Jfet MC Valve Phonostage (Telefunken Valves)
    Digital: Firebottle modded Xiang Sheng DAC (Telefunken Valve)
    Amplification: Slagle AVC Passive Preamp & Firebottle Monoblocks (Telefunken Valves)
    Cables: Fisual S-Flex Speaker Cable & SPOTFIRE IC Cables Throughout
    Speakers: Pioneer CS-77A

  5. #15
    Join Date: Oct 2016

    Location: Bolton, England

    Posts: 1,125
    I'm Andrew.

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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
    Join Date: Nov 2015

    Location: Wolverhampton

    Posts: 5,192
    I'm Oliver.

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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
    Analogue: Technics SP10 MK2 > Phonomac AT-1010 tonearm > Ortofon Kontrapunkt b > Wizard Jfet MC Valve Phonostage (Telefunken Valves)
    Digital: Firebottle modded Xiang Sheng DAC (Telefunken Valve)
    Amplification: Slagle AVC Passive Preamp & Firebottle Monoblocks (Telefunken Valves)
    Cables: Fisual S-Flex Speaker Cable & SPOTFIRE IC Cables Throughout
    Speakers: Pioneer CS-77A

  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
    Join Date: Nov 2015

    Location: Wolverhampton

    Posts: 5,192
    I'm Oliver.

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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
    Analogue: Technics SP10 MK2 > Phonomac AT-1010 tonearm > Ortofon Kontrapunkt b > Wizard Jfet MC Valve Phonostage (Telefunken Valves)
    Digital: Firebottle modded Xiang Sheng DAC (Telefunken Valve)
    Amplification: Slagle AVC Passive Preamp & Firebottle Monoblocks (Telefunken Valves)
    Cables: Fisual S-Flex Speaker Cable & SPOTFIRE IC Cables Throughout
    Speakers: Pioneer CS-77A

  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
    Join Date: Nov 2015

    Location: Wolverhampton

    Posts: 5,192
    I'm Oliver.

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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
    Analogue: Technics SP10 MK2 > Phonomac AT-1010 tonearm > Ortofon Kontrapunkt b > Wizard Jfet MC Valve Phonostage (Telefunken Valves)
    Digital: Firebottle modded Xiang Sheng DAC (Telefunken Valve)
    Amplification: Slagle AVC Passive Preamp & Firebottle Monoblocks (Telefunken Valves)
    Cables: Fisual S-Flex Speaker Cable & SPOTFIRE IC Cables Throughout
    Speakers: Pioneer CS-77A

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