1-9
PEDALS
A 13
note Spinet Pedal of the
Block Module
Design is used. The keying contacts
are used the
Rocker type, with the middle
contact used for
Common. A series
of latching
D.C.
gates
determines the desired bass
note. These contacts
are wired High-Note Select.
The latching Keyer
Gates hold for at least two
(2}
seconds, but
release instantly with the next
pedal depressed.
The selected output is
then amplified to produce
the
8'
bass note
and then frequency-divided
one
(1)
time
in F-F circuit
to
produce the
16'
bass
note.
An
output gate
controls the Pedal Sustain
envelope. The
sustain decay time is selected by
String Bass Tabs,
those its decay
times are follows:
Tab
Decay Time
String Bass
I 350 msec.
String Bass II
700 msec.
String Bass 111(1 + 11)
1.5 sec.
The Bass Note is
selected
8'
and
16'
by
Pedal
Tab.
The Mute Tab
affects all Bass Tones.
1-10
VIBRATO
A Master
Oscillator Vibrato
offers three
(3)
widths at
one speed that
affects all voices.
This rate is
6.6
±
0.2 Hertz.
Vibrato II is wider
than I, and
the two Tabs are
additive, so
the
Vibrato
is widest
when both on.
1-11
VOLUME
This
Knob controls
the overall volume
of the
organ
soft
to
loud, and its
variable range is about
30 dB.
1-12 BRILLIANCE
This Knob
controls the overall tone
of the organ
soft
to
bright,
then gradually
attains
a
slope of
6 dB/octave
and alters the response
about 16 dB
at
3000 Hz.
1-13
EXPRESSION
PEDAL
The
assembly is
made of steel
frame, utilizing a
single channel.
The
variable range is about
22
dB
at
minimum
position.
1-14 REVERBERATION
Three
{3)
degrees
of Reverb, are
available, which
affects
all organ
tones.
1-15
EXT.
INPUT
An input
suitable for
other
Signal-generating
devices is provided
and located
under the right-
hand
Lower End Block
of the cabinet.
1-16 REMOTE TONE
CABINET
A
jack is provided
suitable for
an 8
ohm Speaker.
A
socket
is provided
suitable for a
Leslie
910
Tone Cabinet.
The signals are
taken from
the
organ
output
following the
Leslie Selector
Tabs, and
On/Off, Fast/Slow
control Tabs are
coupled
through the Standard
Cable to the
Tone
Cabinet. Jack and
socket are located
on amplifier
in
the Pedal Cabinet.
1-17 AMPLIFIER
A
single channel 30
Watt Block
Module
Design is
provided and
located in the
Pedal Unit Assembly.
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