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What do you call this piece, and where can I get it?

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  • #1

    What do you call this piece, and where can I get it?

    The circular rubbery piece that goes around the tube and attaches to the chassis and prevents dust from getting to the circuit board?

    Click image for larger version Name: dsl1_02.jpg Views: 1 Size: 59.1 KB ID: 5853252

    I lost two, and I need them. Help!

    Thanks.
    Tags: None
  • #2
    Re: What do you call this piece, and where can I get it?

    I can't tell if it's a tube damper like this

    Pre-Amp Tube Damper
    https://tubedepot.com/products/pre-amp-tube-damper?gclid=CjwKCAiAi4fwBRBxEiwAEO8_Hr_Ug1rc17PnjTAZWlCz0wghs4woJoH7qflcTX5xonKgMfozAQ8vGBoCrsQQAvD_BwE
    Use two or three of these rings around a pre-amp tube to reduce noise and microphonics. An economical alternative to more expensive tube rings. Price is Per Ring


    If it just slides down on top of the tube and rests on the chassis, it's probably a tube damper. If it's installed on the chassis, it's a rubber grommet.

    Either one isn't necessary for the Amp to operate.

    Sent from my LM-V405 using Tapatalk

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    • #3
      Re: What do you call this piece, and where can I get it?

      Rubber grommet! That's exactly it. Thank you! I guess I can get those at Home Depot?

      Would you happen to know what size I need for an EL84 to pass through it?

      I know it isn't necessary, but I guess it stops dust from gettint through the chassis into the circuit board.
      Last edited by Rex_Rocker; 12-24-2019, 12:12 PM.

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      • #4
        Re: What do you call this piece, and where can I get it?

        Just measure and get the closest size.

        Rubber Grommets
        https://www.tubedepot.com/products/rubber-grommets
        Used to insulate and seal around holes cut in metal chassis, while damping vibration and minimizing abrasion. Durometer hardness is 55A. Use indoors and outdoors. Color is black. Flexible grommets are made of SBR rubber and have a temperature range of -56 to +200 F.1/4" Grommets are used for shock


        Sent from my LM-V405 using Tapatalk

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