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Crumar Half-Moon 3 way Switch for Mojo 61

Half-moon 3-way Selector Switch for Mojo Classic and Mojo 61 Lower Manual
$79.00

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Crumar Half-Moon 3 way Switch for Mojo 61
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Half-Moon Mojo

The Crumar Half-Moon 3-way switch is a classic device for switching between the three modes (slow, stop, and fast) of a rotary speaker effect. Colloquially known in the tonewheel community as a “half-moon” switch, this item is a must-have for serious organists who own the Crumar Mojo Classic or a Mojo 61 lower manual. (Sweetwater PSA: if you own a Mojo 61 without the lower manual, note that it has no mounting screw holes for the switch. However it already provides you with two push buttons for rotary control, so you don’t need it!) Made of solid metal, the Crumar Half-Moon 3-way switch is built to last. Includes mounting screws.

Crumar Half-Moon 3-way Switch for Mojo 61 Features:

  • 3-way selector switch for Mojo Classic and Mojo 61 lower manual
  • Switches between 3 modes (slow, stop, and fast) of a rotary speaker effect
  • A must-have for serious clonewheel organists
  • Includes mounting screws

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Tech Specs

  • Type: 3-way Rotary Switch
  • Compatibility: Crumar Mojo 61 Organ
  • Connectivity: 1/4" TRS
  • Features: Slow, Stop and Fast Speeds
  • Manufacturer Part Number: HMS-20-BK

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Customer Reviews

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Rated 5/5

Works with single manual too!

The only thing that makes this for the "lower manual only" are the lack of mounts on the mojo 61. I removed the plastic washer and bolts which allowed me to use Gorilla heavy duty foam tape and mount it up rock solid. As for the switch, it really makes the playing experience much more authentic and natural for me. Well worth the measly $.
Rated 5/5

Great half moon switch

Bought this for my Nord Electro 6 D. If you can use a soldering gun or pencil you will save a lot of money over the Nord half moon. I Changed the wires to Tip- Black, Ring - Red and shield Red. Set my Nord to Half moon and works perfect.
Rated 5/5

Works Perfectly on my Nord Electro 5D for 1/3 the price

Mounts solidly using Nord mounting holes and Crumar supplied mounting screws. Crumar has several models of this basic switch that are wired differently for various keyboard models. I rewired the TRS Jack to what the Nord needs to see: Slow: tip-sleeve, Stop: no connection, Fast: ring-sleeve. If you can solder it's easy. For my unit there were 3 colored wires on the TRS jack that I moved as follows:

Was Now
Tip White Black
Ring Red White
Shield Black Red


See attached picture.
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