Hammond Drawbar Wave Simulation

This Java applet draws the resultant wave that occurs from a 9 drawbar system Hammond. Each drawbar represents a relative harmonic frequency (pitch).

Drawbar Frequency 16' 5 1/3' 8' 4' 2 2/3' 2' 1 3/5' 1 1/3' 1'
Relative Harmonic Frequency 1x 3x 2x 4x 6x 8x 10x 12x 16x

The numbers 0 - 8 represent the amplitude (volume) for a selected drawbar. The number 0 means off, no volume. The number 8 represents maximum volume. Each number is a gain of 3 decibels.

Drawbar Amplitude 0 1 2 3 4 5 6 7 8
Volume Gain 0 db +3 db +6 db +9 db +12 db +15 db +18 db +21 db +24 db

In the upper right corner of the applet, is a preset selector. It contains common drawbar settings. If a change occurs to any drawbar at the bottom of the applet, then the preset selector is automatically reset to 00 0000 000. -- Tim Wick

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