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Thread: Valve advice

  1. #11
    Join Date: Jan 2013

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    I'm James.

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    Quote Originally Posted by walpurgis View Post
    I hate the term 'rolling'. It's an American import. We should be doing comparisons. The only thing I roll is cigarettes!
    I suppose you hate the word tube as well.
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  2. #12
    Join Date: Jan 2008

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    Ha - in Glasgow 'tube' [pronounced as 'choob'] has a rather different meaning! In that respect, 'choob rolling' could be very interesting...

    Marco.
    "A man is a success if he gets up in the morning and gets to bed at night, and in between he does what he wants to do" -- Milan Kundera.

  3. #13
    Join Date: Feb 2008

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    I'm NotTakingLifeTooSeriouslyTheseDays.

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    The original Siemens [IMHO] are by far the most "Right" sounding of the ECC88,E88CC,7308, 6922 Variety.
    But, as others have said, it will depend on your taste, and system setup, be careful of NOS versions, as all the variants of these valves tend to suffer badly with noise issues, [they werent paticularly designed for Audio purposes] so, be sure they have been tested properly!
    Good luck on your quest!
    A...
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  4. #14
    Join Date: Feb 2013

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    Quote Originally Posted by Marco View Post
    Ha - in Glasgow 'tube' [pronounced as 'choob'] has a rather different meaning! In that respect, 'choob rolling' could be very interesting...

    Marco.
    Aye, doon a steep hill
    Regards,
    Grant ....

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  5. #15
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    I'm Richard.

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    Thanks again guys, loads to take in. The world of valves is a bonkers place

  6. #16
    Join Date: Oct 2012

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    I'm Jez.

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    Quote Originally Posted by Jimbo View Post
    I suppose you hate the word tube as well.
    I do! and "rolling".... We're British FFS!

    Also PCC88 is not really compatible with ECC88. It has a 7V heater as opposed to 6.3V so whilst both will work it's not ideal. For optimum performance and reliability heater voltages need to be fairly accurate, believe it or not...

    As Anthony said the ECC88 was not designed for audio use (VHF cascode RF amplifier is its intended use) and so they are not really tested/graded for low audio noise. They can be one of the lowest noise valves in general use but you will find lots of rogue noisy ones around which, whilst they make the grade for their intended use, are way too noisy for the first stage of a phono stage for example. "Good makes" can be the worst in this respect (ie that out of say 10 valves 3 may be noisy) and Russian ones often the best as far as consistently low noise IME.
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  7. #17
    Join Date: Jan 2008

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    Quote Originally Posted by struth View Post
    Aye, doon a steep hill
    I could think of a few suitable candidates, some of which would cause a bigger rumble than others!

    Marco.
    "A man is a success if he gets up in the morning and gets to bed at night, and in between he does what he wants to do" -- Milan Kundera.

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