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Replaced JCM800 lighted power rocker switch

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  • Replaced JCM800 lighted power rocker switch

    Hi,

    I have a late 80's 100 watt JCM800 that had a bad power switch. I ordered a new one from Hoffman amplifiers. When I was changing the switch out last night I noticed the old switch had 5 lugs, the 5th (bottom) for a black wire. The new switch had only 4 lugs, so for now I just left the black wire not connected to anything.

    Does anyone know what I should do about this? The amp powers on now, but obviously I don't like having an exposed wire like this. It can't touch anything, but I like to do things safely and thoroughly. I checked the Hoffman website again and there is no 5 lug lighted Marshall power rocker switch.

    Thanks

  • #2
    There's a procedure for changing the old style 5lug to the newer 4 lug switch floating around the net somewhere.....try googling it.
    I know I have it somewhere I just have to find it!

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    • #3
      Originally posted by drewl View Post
      There's a procedure for changing the old style 5lug to the newer 4 lug switch floating around the net somewhere.....try googling it.
      I know I have it somewhere I just have to find it!
      I spent quite a bit of time trying to google this in various ways and came up with nothing on a possible workaround for this. Thanks anyway though.

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      • #4
        here it is:

        http://www.el34world.com/charts/images/mar_switch.gif
        Attached Files

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        • #5
          you can buy the correct one for about $11 including shipping at ampwares or ebay. just did one today

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          • #6
            Originally posted by TD_Madden View Post
            So if I understand correctly the new switch has an internally lighted bulb, thus no need for the 5th wire, which supplied the voltage for the bulb on the old switches. I can remove it.

            You guys are awesome - thanks.

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