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Thread: Yours for the cost of postage - a poorly little valve pre-amplifier

  1. #1
    lordmortlock Guest

    Default Yours for the cost of postage - a poorly little valve pre-amplifier

    This arrived here with the Firebottle phono stage I’ve just sold. I understand that it’s a Chinese pre that Alan made some clever alterations to, but sadly it was DOA. Two inputs, the valves you can see and some further mini bottles inside.

    Anybody want a play with it? No idea what’s wrong, could be a simple fix.

    Cover the cost of postage and it’s yours.




  2. #2
    Join Date: May 2016

    Location: Milton Keynes

    Posts: 3,578
    I'm Andrew.

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    I’ll have a play around with it Jake, please .


    Sent from my iPhone using Tapatalk

  3. #3
    lordmortlock Guest

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    Perfect, nice one Andy. I’ll be able to put that valve that I was going to send to you about six years ago and never did

  4. #4
    Join Date: May 2016

    Location: Milton Keynes

    Posts: 3,578
    I'm Andrew.

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    Quote Originally Posted by lordmortlock View Post
    Perfect, nice one Andy. I’ll be able to put that valve that I was going to send to you about six years ago and never did

    Top banana
    Let me know how much I owe you mate , merry Christmas to you and your family.


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  5. #5
    lordmortlock Guest

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    Will do Mate, and to you! Have a good one

  6. #6
    Join Date: Oct 2012

    Location: The Black Country

    Posts: 6,089
    I'm Alan.

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    I'm here if you need help.
    The valves should light up, if not check the rear fuse.

    The valves run at +/- 32V, I've a circuit if you need it. The miniature valves have a heater voltage of 1.5V and are run from a bias of 5V from a regulator.

    Merry Christmas all!

  7. #7
    Join Date: May 2016

    Location: Milton Keynes

    Posts: 3,578
    I'm Andrew.

    Default

    Quote Originally Posted by Firebottle View Post
    I'm here if you need help.
    The valves should light up, if not check the rear fuse.

    The valves run at +/- 32V, I've a circuit if you need it. The miniature valves have a heater voltage of 1.5V and are run from a bias of 5V from a regulator.

    Merry Christmas all!
    Thanks Alan, I may well be in touch .
    Merry Christmas


    Sent from my iPhone using Tapatalk

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