Here are some common modifications made to the Percussion circuitry in HammondOrgans.
- EliminatingThePercussionVolumeDrop: In a stock organ, the volume of the drawbars is reduced when the Percussion volume is set to loud. By far the most popular percussion modification is to eliminate this volume drop.
- ChangingThePercussionKeyingSource: When Percussion is enabled, one of the harmonic busbar contacts from each key is used to trigger the Percussion amplifier. This removes one drawbar harmonic from the palette available to shape the sound. The stock setup removes the harmonic available at the 9th drawbar. Some players prefer to have the top-most drawbar available at all times, even when Percussion is enabled. This modification to the percussion circuit changes the percussion amplifier's trigger source from the 9th harmonic busbar to some other source, usually the 8th.
- One can add a ParadiseButton which disables the decaying of the percussion.
See also: PercussionTroubleshooting.
TopicModification
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