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Thread: The Bigbottle MC Phonostage Build Thread!

  1. #1
    Join Date: Nov 2015

    Location: Wolverhampton

    Posts: 10,157
    I'm Oliver.

    Default The Bigbottle MC Phonostage Build Thread!


  2. #2
    Join Date: Nov 2015

    Location: Wolverhampton

    Posts: 10,157
    I'm Oliver.

    Default

    There is now a final BOM available via the link.

    This is just a change of part number for Capacitor C131.231. Values are unaffected.

    https://www.diyaudio.com/forums/grou...ml#post5697733

    There will be no further alterations unless parts become obsolete.

  3. #3
    Join Date: Nov 2015

    Location: Wolverhampton

    Posts: 10,157
    I'm Oliver.

    Default Alterations to the BOM!

    Alerations to BOM have been mad to provide better performance in the RIAA figures.

    Here they are:

    Alterations:

    R113.213 = 68K

    R121.221 = 180K

    R122.222.= 27K

    C131.231 = DO NOT FIT!

    If anyone requires a new copy of the BOM, just drop me a message.

    This is the last change to this PCB.

  4. #4
    Join Date: Nov 2015

    Location: Wolverhampton

    Posts: 10,157
    I'm Oliver.

    Default

    The original BigBottle prototype (top rack) taking on the Tron Seven. About 1500 (Trons est used prices) price difference !!

    I wasn't there so won't comment on the outcome but if the owner would like to share the days details, he's more than welcome

    Cool pic!,

  5. #5
    Join Date: Nov 2015

    Location: Wolverhampton

    Posts: 10,157
    I'm Oliver.

    Default

    Been a while waiting for this but when folk are working for free I am just grateful for the help.

    The first MM/MC version of the BigBottle phonostage.

    Prototypes btw

  6. #6
    Join Date: May 2017

    Location: West Sussex, UK

    Posts: 784
    I'm Steve.

    Default

    Hi Oliver
    The new boards look great

    Good luck...
    Steve..

  7. #7
    Join Date: Jan 2014

    Location: london se6

    Posts: 853
    I'm AndyElectroNumpty.

    Default

    pricks up ears.....
    At the cutting edge of Numptyness!

  8. #8
    Join Date: Nov 2015

    Location: Wolverhampton

    Posts: 10,157
    I'm Oliver.

    Default

    Thanks!

    Only prototypes but look nice, should sound the same as the MC version, I hope.

  9. #9
    Join Date: Dec 2010

    Location: North Lincs

    Posts: 164
    I'm Keith.

    Default

    Quote Originally Posted by smangus View Post
    pricks up ears.....
    Likewise.

  10. #10
    Join Date: Jan 2014

    Location: london se6

    Posts: 853
    I'm AndyElectroNumpty.

    Default

    Hi Oliver

    Will this use the same power rated tranny as the MC only board?
    At the cutting edge of Numptyness!

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