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Mesa DC3

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  • #16
    Attached is a data sheet for one Metal Oxide Varistor (MOV) line manufactured by the Littlefuse Corp.
    Littelfuse_MOV_UltraMOV-67928.pdf

    Mouser carries them. See the Mouser listing at https://www.mouser.com/ProductDetail...4y77t4MRwwQ%3d

    The device is used as a mains voltage Transient Voltage Surge Suppressor. It it fails open, just wears out and stops working or is removed from the circuit the amp will still function.

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    • #17
      Here is a datasheet for MOVs: MOV Size _ Selection.pdf

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      • #18
        Thanks guys--- those 2 resistors ended up being 680 ohm . I saw that printed on the pcb after removing them and cleaning the burnt spots ..but the scem shows 6, 680 ohm , not 8. Fired it up and had some red plating but fixed that ( resistor ) and its working fine now.


        I dread it when someone asks " can you look at my Mesa ? "

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