THE LESLIE SPEAKER
Models 22H &22
R
The Models 22H and 22R Leslie Speakers are
expressly designed for use with the Hammond Organ.
Functionally the two cabinets, as shipped from the
Electro Music factory, are identical. However, the
22R has been prepared for easy installation of the
spinet-type Hammond reverberation kit. Procedures
for connecting the Leslie Speaker will vary according
to the model Hammond Organ which is involved. De-
tailed installation information is contained in this
manual.
The Leslie Speaker is highly efficient since it has
been created exclusively for organ usage. Broad
frequency response is obtained as the result of the
separate handling which is given to upper and lower
frequencies. The unique tremulant produced by the
Leslie Speaker is the result of moving elements, which,
by creating afully realistic tremulant, bring to the
organ atype of sound which is truly characteristic of
the pipe organ. Tremulant is controlled in the Leslie
Speaker simply by turning these moving elements on
or off.
The Leslie Speaker may be used on Hammond
two-manual models which are equipped with built-in
speaker systems, as well as on models without built-
in speaker systems. With the former models aspeaker
selector switch ("Echo") is used to enable the organist
to use the Leslie Speaker and the organ's built-in
speaker system either separately or together. An Echo
switch is also used with the larger Hammond consoles
—those without built-in speaker systems —in instal-
lations employing two or more speaker units.
Complete instructions, for avariety of Leslie Speaker
installations, and for all two-manual Hammond Organ
models, arc given in detail in this owners manual.
SPECIFICATIONS
Cabinet: Selected hardwood veneers with quality lac-
quer finish to blend with consoles.
Dimensions: 29" wide, 20y
2"deep, 41" high.
Speakers: Treble?—compression-type driver, permanent
magnet, 16 ohms impedance,
Bass —15-inch heavy duty, permanent mag-
net, 16 ohms impedance.
Amplifier: 40 watts output.
Power Supply: 117 Volt, 60 Cycle.
Power Consumption: 2.1 Amps, 190 Watts.
Weight—22H: 135 pounds net
152 pounds, boxed for shipment
22R: 138 pounds net
155 pounds, boxed for shipment
PREPARING THE SPEAKER FOR USE
After unboxing the Leslie Speaker:
1. Remove the upper and lower compartment back
covers; take out the box in the upper compartment
containing the 428 Tremolo Control, the B-f
Adapter, and the lubricating oil. If cabinet is a
22R, also remove the kit of materials for installing
reverberation unit.
2. Remove the wood shipping blocks from the upper
and lower motors and from the amplifier, so that
these units may float freely on their rubber mount-
ings. Save the wood blocks for possible future use
in shipping the cabinet. Also remove the rubber
bands, and in the case of the 22R, the tape used
to hold the upper rotor in position during ship-
ment.
3. Make sure the upper belt is in place on the rotor,
idler, and motor pulleys.
4. Select the groove on the upper motor pulley which
provides the desired tremolo speed. The center
groove is the one used most often; faster or slower
speeds may be obtained by use of the other pulley
grooves.
5. Replace the upper and lower compartment back
covers.
6. Remove shipping skid and place the cabinet so it
rests solidly on the floor. If floor is uneven use
snug-fitting wedges to keep cabinet from rocking.
7. Plug the speaker connecting cable into the Leslie
amplifier. This may be either the 5-conductor cable
(with 6-pole plug) as supplied by Hammond, or
the 6-conductor cable which is obtainable as an
accessory from Electro Music.
Note: Complete preparation of the 22R Leslie Speaker
may involve installation of the reverberation kit.
To make this installation, follow the instructions
given on page 7.
INSTALLATIONS
USING ASINGLE LESLIE SPEAKER
Those installations using asingle Leslie Speaker are
the most common, hence will be discussed first in this
manual. Installations using several Leslies, or com-
binations of Leslie Speakers and Hammond tone
cabinets will be explained in subsequent pages. The
method for connecting asingle Leslie Speaker will
vary according to the model Hammond Organ which
is being used. Complete details will be found in the
following several sections of this manual.
Connecting the Model 22H or 22Rto the Hammond
Spinet, Models L-100, M-l, M-2, M-3, or M-100
When the Leslie Speaker is to be connected to any
of the Hammond Spinet model organs, the Leslie 3-M
Echo Control Kit should be used. This kit contains
the needed connecting cable —in this case a30-foot
length of cable with appropriate connectors installed
at both ends. Also included in the kit is the switch
with associated equipment for the Echo Control, a
device that permits the organist to use either the
Leslie or the console speaker, or to use both speakers
at the same time. A428 Tremolo Control, furnished
with the speaker, provides the means for turning the
Leslie tremolo on and off.
Installation should be made as follows;
1. Attach the tremolo and echo control cases to the
wood rail directly in front of the lower manual
by choosing the two mounting holes in each con-
trol case which best center the wood screws in the
rail. Use the screws which are provided. Controls
may be located together at either end, or with one
at each end of the rail.
2. Pass the control cables into the interior of the con-
sole in one of the following ways
:
a. Push the cables through the felt dust seal found
underneath the manuals just above the knee
panel. (Use asmall screwdriver to push the felt
down to create an opening near the left end of
this seal.) Push the cables through this opening.
b. Run the cables down along the corner where
the knee panel and the end of the console join,
then underneath to the back of the console.
Bring the cables into the console from the rear.
3. Mount the tremolo and echo terminal boxes inside
the console at aconvenient point, making sure that
the connecting and control cables will reach.
Fasten the boxes in place using the wood screws
which are provided.
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