User manual ROLLS RFX147
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Manual abstract: user guide ROLLS RFX147
Detailed instructions for use are in the User's Guide.
[. . . ] In the absence of such purchase receipt, the warranty period shall be one (1) year from the date of manufacture. This warranty shall be invalid if the product is damaged as a result of defacement, misuse, abuse, neglect, accident, destruction or alteration of the serial number, improper electrical voltages or currents, repair, alteration or maintenance by any person or party other than our own service facility or an authorized Service Center, or any use violative of instructions furnished by us. This one-year warranty is in lieu of all expressed warranties, obligations or liabilities. ANY IMPLIED WARRANTIES, OBLIGATIONS, OR LIABILITIES, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, SHALL BE LIMITED IN DURATION TO THE ONE YEAR DURATION OF THIS WRITTEN LIMITED WARRANTY. [. . . ] Size: Weight: Dual 1/4" unbalanced Dual 1/4" unbalanced 50k Ohms 100 Ohms +5 dB max 6 mS 800 Hz 19 x 1. 75 x 6 inches 7 lbs
SPECIFICATIONS
BRIEF HISTORY OF THE ROTATING SPEAKER Electronic devices that produce a "Leslie-like" sound have been available since the sixties. Cheap solid state components and the need for more portable equipment led to the development of numerous "electronic Leslies" and tremolo-vibrato add-on devices. Few early Leslie simulators were authentic enough to fool even causal listeners and rarely sounded like a real Leslie Speaker. Most relied on simple phase-shift circuitry and their primary advantages were compactness and low cost. Current equipment is much improved and it's often difficult to tell the difference between a real Leslie and a simulator, especially on recordings. All mechanical rotary tremolo systems are based on the Doppler-effect. Discovered by Austrian mathematician and physicist Christian Doppler (1803-1853) in the early nineteenth century, the Doppler-effect is the apparent variation in pitch that a stationary listener hears from a moving sound source. In practice, the loudness of the sound also appears to vary and it is this combination of frequency (vibrato) and ampli-tude (tremolo) modulation that give rotating speaker and other Doppler-effect systems their characteristic sound. However, most simulators don't reflect sound or produce the unique audio characteristics of mechanical systems. Rotating speaker elements also direct sound out the sides and back of the cabinet which is reflected off nearby walls and surfaces. The listener hears this combination of primary and reflected sound as a moving audio field. Even when the audio source (organ) is mono, the rotating speaker elements and reflected sound create a realistic stereo effect. The RFX147 Rotorhorn simulates the Leslie speaker effect unlike any other electronic simulator by utilizing an internal crossover. This provides a way to effect the upper and lower frequencies differently much like a real rotating speaker. A more authentic effect is thus produced.
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BACK COVER
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SCHEMATIC
Title: RFX147 ROTATING SPEAKER SIMULATOR Sheet 1 of 1 Rev:
DESCRIPTION FRONT PANEL
ROLLS CORPORATION 5968 South 350 West 84107 Salt Lake City, UT
R61 1K Q4 2N4124
1458
Document Number:
10K
R60 10K
R74 4 . 7 K
7 R59
-12V
R54 22K
U13A
11
9
R . X 1 4 7 . S C H
Q3 2N3906
VB
R57 3 . 3 K
1
Date: 24 - Aug - 2001
3
CLK
D
1458
R56
1U
+12V
47K
+12V
U16B
47K
2
VDD
C32 25P.
D13 1N4148
U7B 4013
R55 1M
DEPTH R53
Q
Q
P100K
5
6
R65 100K
R64 470K
R75 47K
R58 470K
R66 220K
1458
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+12V
C30 . 0 4 7
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6
5
C36 10U
6
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CLK
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R67 100K
R68 100K
VB
5
R52 100K
5
3
1458
VDD
R48 470K
C34 . 0 1
R49
100K
VB
R50 220K
Q5 2N4124
R51 100K
U7A 4013
Q
7
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R70 22K 3
2
Q 10 2N3904 +12V
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1
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2
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Q 11 2N3904
R71 10K
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RATE
P7
47K
D9 1N4148
1458
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Q9
R30 22K
+12V
R28 100
R72
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P100K
P8 P100K
Q 12 2N3904
R29 10K
1
R31 22K
7 8
2 6
R47 10K
C29 47U.
R62 10K
CLK1 CLK2
O1 O2
M N3007
C21 . 0 0 3 9
4560
2 22K 3
P4 50K
C20 120P.
-12V J6 P H O N E 1 /4
+12V
C7 820P.
VGG GND VDD
U4B
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U6
IN
13
14
12
R63 4 . 7 K
R76 4 . 7 K
R27 100K
R196 33K 5
. 0 3 9
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Size:
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14
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GND
THD DG RIN RC
R15
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GND
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R84 10K
R81 100K
SW 3A
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OUT
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1458
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R83 10K
L IN
SW 2A
6
5
1
2
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R41
U1B
1K
D3
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3
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10K
H2A
HD3 H2B
H2C
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BPASS DPDT
100K
R2 100K R OUT
P H O N E 1 /4 J1
P H O N E 1 /4 J2
P H O N E 1 /4 J3
LOUT
P H O N E 1 /4 J4
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8
INPUT LEVEL: Adjusts the amount of signal from your instrument to the RFX147 input circuitry. CHORUS/VIBRATO SWITCH: Selects between the Chorus/Rotating Speaker effect mode and the mono Vibrato mode. RATE: Adjusts the amount of time taken to switch between Speed 1 and Speed 2. [. . . ] LEFT IN: 1/4" unbalanced jack for connection to your keyboard, sound module, or other instrument you wish to have the Rotorhorn effect. RIGHT IN: 1/4" unbalanced jack for connection to your keyboard, sound module, or other instrument you wish to have the Rotorhorn effect. 2 NOTE: WHEN OPERATING IN MONO USE THIS JACK.
CONNECTION Shown below in Fig 1 is a connection example for the RFX147. Connect the keyboard or module output(s) to the RFX147 INPUT(S), and the RFX147 OUTPUT(S) to an amplifier, mixer, snake, etc. [. . . ]
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