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Taper Fender brownface pots

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  • Taper Fender brownface pots

    Hi all

    1st of all: a happy and great sounding 2007 to all!

    Right know I don't have an old Brownface Fender in my shop but I need to know about the pot-tapers from a 6G7A Bandmaster and/or 6G6B Bassman amp.

    So not only lin or log but also the tapers from the log-pots (like 10% or 30-35%).

    In the past Rick E. did post about blackface pot-tapers but I couldn't find anything about the brownface ones.

    Many tia!
    Love, peace & loudness,
    Chris
    http://www.CMWamps.com

  • #2
    Tapers

    Hi Chris

    Good to see you are still around. I hope all is well in your corner of the world.

    According to Dave Funk's Tube Amp Workbook those early Fender pots were analog tapers & the difference between that & log taper is that analog taper were 30% instead of 10% for the log. Linear apparently meant the same then as it does now. Also according to Funk:

    6G7-A:
    Volumes= 1MAnalog
    Trebles= 350K with a 70K tap
    Basses= 250KAnalog
    Speed= 4MRA (Reverse Analog)
    Intensity=!0MRA
    Presence=25KLinear

    6G6-B:
    Bass Channel
    Volume= 250KL
    Treble= 250KAnalog
    Bass= 25KL

    Normal Channel:
    Volume= 1MAnalog
    Trebles= 350K with a 70K tap
    Basses= 250KAnalog
    Presence=25KLinear


    Hope this helps!
    Happy 2007 to you.
    Philip Morrison

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    • #3
      Hi Philip

      Thanks, so 30% for the LOGs (?).

      It's pretty ok over here. Very busy with building and modding, got my 1st off. dealer. Altough I'm still building one-offs I hope to start with some small series production during this year.

      Unf. I can't post as much as in the past on Ampage but it's great to see overseas amp-guys from time to time on this great forum.

      Hope everythinhg's well with you!
      Love, peace & loudness,
      Chris
      http://www.CMWamps.com

      Comment


      • #4
        Yes 30% for 'log'

        Chris

        Everything is fine here. Yes, 30% for the 'log' taper.

        With all that you still seem to be able to post about twice the amount I do. Time IS scarce isn't it. Good Luck with your small series production venture.
        Philip Morrison

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