Replacing AC Socket on Vox AC4C1

Discussion in 'Amp Tech Center' started by tre_byrd, May 6, 2021.

  1. tre_byrd

    tre_byrd TDPRI Member

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    Anyone know the value of the capacitor that is underneath the heat shrink on the ground wire (blk) that connects the back of the AC socket to the On/Off switch. My was destroyed and I can't see the values on the capacitor. I do not see a way to measure capacitance on my multimeter.
    Is this capacitor necessary?
    I've attached a couple photos of the existing conditions, any info would be appreciated
     

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  2. gusfinley

    gusfinley Tele-Afflicted

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    Its not a ceramic capacitor its a thermal fuse (Gas Discharge Tube?). It shuts off when the amp is pulling too much current and resets itself after it gets happy again.

    This is labelled SG1 SURGE GUARD on the schematic. I don't see any values or hint for replacement other than that.

    You have an mains fuse and a Heater Fuse, so you could just remove it.
     
  3. Jon Snell

    Jon Snell Tele-Holic

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    Last edited: May 7, 2021
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  4. Peegoo

    Peegoo Poster Extraordinaire

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    I had an amp come in with the inrush current limiter popped (the side was blown out) and I replaced it with one rated for 25 Ohms/3A.
     
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  5. tre_byrd

    tre_byrd TDPRI Member

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    thank you all!!! The product in the ebay link looks pretty close to what used to be in the amp so I'll go ahead and replace just for piece of mind.
     
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