Hammond Organ L-100 Series, Руководство по обслуживанию

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Page 81
SECTION VII
MODIFICATIONS
7–1 OVERVIEW
Being one of the more inexpensive tonewheel Hammonds,
the L–100 has rich aftermarket support for modifications and
improvements. These range from simple modifications like
connecting a Leslie to more complex changes like sculpting a more
B3-like tone or adding unique tonal changes like overdrive.
7–2 CONNECTING A LESLIE OR OTHER EXTERNAL
SPEAKER
The factory-standard way of connecting a Leslie or other external
speaker system is to use the
1/4
” output modification described in
1–19 External Sound Source . However, a Switchcraft SF-JAX #25
or #55 is now obsolete. Additionally, this design relies exclusively
on the swell pedal to adjust the output volume.
Instead, you may use the switchable line-out circuit as shown in
Figure 7–1 . This circuit adds a switch and uses any commonly
available
1/4
” phone jack. The schematic shows a TRS-style female
connector, but only the TS junctions are used.
Ground noise can be a problem when connecting these
instruments, so you may wish to add a 1:1 audio isolation
transformer to the output circuit
Figure 7–1: Switchable Line-Out Schematic
7–2–1 CONNECTING A LESLIE VIA A NO. 27–1 ADAPTER
Use the following steps from the Leslie installation guide if you
want to connect a Leslie 6-pin connector (6H, 6W) and can source
the cable, No. 27–1 Leslie Adapter and No. 26–1 Chassis.
For more details, please refer to the installation guide for your
Leslie model.
a. Plug the 5-contact socket of the No. 27–1 Console Adapter
into the No. 26–1 Chassis.
b. Cut off the 5-pole plug and socket assembly, cutting the
red, green, and black wires at a point just above the screw
terminal connections.
c. Discard this plug and socket assembly, but save one of the
plastic insulating sleeves for future use.