DESCRIPTION
Each Hammond Organ console (Fig. 1) includes two manuals or keyboards: the lower, or Great, and
the upper, or Swell; and a pedal keyboard of 25 keys. The operation of the controls of this model is
covered in the following paragraphs.
STARTING THE ORGAN
To start the organ, hold the "start" switch (Fig. 2) in "on"
position for approximately eight seconds. Still holding it,
push the "run" switch on "on" position. After leaving both
switches on for about four seconds, release the start
switch to return to its normal position.
If the console is very cold, or if a frequency regulater is
used, it may be necessary to hold the start switch slightly
longer. A pilot light shows when the organ is turned on.
PRESET KEYS
At the left end of each manual are twelve keys identical to the playing keys except reversed in
color (Fig.3).
When a preset key is depressed it locks down and is released only when another is depressed.
The exception to this is the cancel key at the extreme left, which serves only to release any key
which may be locked down. Only one preset key is used at one time. If by mistake two are
depressed and locked, they may be released by means of the cancel key.
Each preset key, with the exception of the cancel key and
the two "adjust" keys at the extreme right of the group,
makes available a different tone color which has been set
up on the preset panel located inside the console. These
tone colors are set up at the factory in accordance with a
standard design which :as been found to best meet the
average organist's reqirements. They may be changed, if
desired, by removing the back of the console and
changing the preset panel connections in accordance with
instructions on a card located near the preset panel.When
either "adjust" key is depressed, the organ speaks with
whatever tone color is set up on the harmonic drawbars
associated with that key. The percussion effect can be
used only, when the upper manual 'B' preset key is
depressed (see "percussion" also)
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