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Kawai SX-240

Released in 1984

The SX-240 (first made by Teisco, then branded by Kawai) is a 61-note 8-voice analog synth with two DCOs and a sub-oscillator per voice. It can also be switched to 4-voice mode, with 4 DCOs per voice, or to unison mode. It has a built-in chorus ('Ensemble'), and uses analog SSM filter chips. Like the SX-210 - and the Yamaha CS-80 - the SX-240 has both portamento (glide) and glissando (chromatically steps through notes).

Synth
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IC, 4001 quad NOR gate
IC, 4001 quad NOR gate
$2.95 (Part #3304)
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IC, 4011 quad gate
IC, 4011 quad gate
$2.95 (Part #3391)
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IC, 4049 hex inverter/buffer
IC, 4049 hex inverter/buffer
$2.95 (Part #2382)
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IC, 4069 hex inverter
IC, 4069 hex inverter
$2.95 (Part #3994)
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IC, 74LS139 decoder/demultiplexer
IC, 74LS139 decoder/demultiplexer
$2.95 (Part #4263)
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IC, 74LS373 flip-flop
IC, 74LS373 flip-flop
$3.95 (Part #3051)
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IC, P8031AH microcontroller
IC, P8031AH microcontroller
$9.95 (Part #9843)
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IC, SSM2044 filter chip
IC, SSM2044 filter chip
$44.95 (Part #3720)
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Key return spring
Key return spring
$0.75 (Part #KEYSP8)
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Key return springs, package of 10
Key return springs, package of 10
$5.95 (Part #KEYSP8X)
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Phone jack, 1/4-inch, 3-pin PCB mount
Phone jack, 1/4-inch, 3-pin PCB mount
For Seq St/Stop, Prog Up, Phones, Tape To/From, Clock In/Out
$12.95 (Part #9882)
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Phone jack, 1/4-inch, 3-pin PCB mount
Phone jack, 1/4-inch, 3-pin PCB mount
For Signal Out, Right/Left
$12.95 (Part #9888)
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Style 32U key, black note
Style 32U key, black note
$10.95 (Part #K32UBL)
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Style 32U key, note A
Style 32U key, note A
$12.95 (Part #K32UA)
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Style 32U key, note B
Style 32U key, note B
$12.95 (Part #K32UB)
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Style 32U key, note C
Style 32U key, note C
$12.95 (Part #K32UC)
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Style 32U key, note D
Style 32U key, note D
$12.95 (Part #K32UD)
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Style 32U key, note E
Style 32U key, note E
$12.95 (Part #K32UE)
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Style 32U key, note F
Style 32U key, note F
$12.95 (Part #K32UF)
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Style 32U key, note G
Style 32U key, note G
$12.95 (Part #K32UG)
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Style 32U key, top C note
Style 32U key, top C note
$19.95 (Part #K32UC8)
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Switch, 2-position lever
Switch, 2-position lever
$16.95 (Part #9703)
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Switch, 3-position lever
Switch, 3-position lever
$16.95 (Part #9884)
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