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How to Connect a Leslie Switch to a Hammond C2

Organs, such as those manufactured by Hammond, offer rich musical tones for listening enjoyment. However, Hammond organs played for large groups, like church gatherings, require an external speaker to amplify the music. Leslie speakers are commonly matched with Hammond's C2 organ model, connected with an aftermarket console switch. The speaker must be wired properly to the organ's internal terminals, to move the sound through the speaker without interference.

Things You'll Need

  • Console connector kit
  • Tremolo control switch
  • Hammond C2 organ
  • Leslie speaker
  • Screwdriver
  • Screws
  • Tremolo control cable
  • Wire nuts
  • 8-pin adapter
  • Insulating sleeve
  • Electrical tape
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Instructions

    • 1

      Remove the organ's back cover with a screwdriver.

    • 2

      Locate the pre-amplifier inside the Hammond organ. Position the console connector near the pre-amplifier. Secure the console connector against the organ's inside wall with screws, using a screwdriver.

    • 3

      Attach the tremolo control switch on the organ's exterior surface. Secure it to the organ's wall or railing with screws.

    • 4

      Snake the tremolo control cable between the switch and console connector. Connect each end of the tremolo control cable to the switch and console connector with wire nuts.

    • 5

      Detach the organ's two G terminal cables. Reattach these cables to the two terminals on the console connector. The cables can be connected in any orientation to the two console connector terminals.

    • 6

      Snake the console connector's black and red wires back to the organ's pre-amplifier. Attach the black and red wires to the two open G terminals on the pre-amplifier.

    • 7

      Connect the console connector's yellow wire to the organ's pre-amplifier ground terminal.

    • 8

      Attach the 8-pin adapter's black wire to the console connector's brown wire by twisting them together. Insulate the connection with a sleeve or electrical tape.

    • 9

      Detach the organ's rectifier tube from its slot. Push the 8-pin adapter into the open slot. Connect the rectifier tube into the adapter's end.

    • 10

      Attach the organ's speaker cable into the Leslie speaker's input socket on the rear panel.

    • 11

      Reattach the organ's back cover. Test the organ's sounds through the speaker by playing the instrument.


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