Roland MC-4 Micro Composer

Released in 1982

The MC-4 Micro Composer is a polyphonic CV/Gate sequencer. It was Roland's second microprocessor-based digital sequencer, following the earlier MC-8. It was pre-MIDI, and patching to four different synthesizers is done via 3.5mm jacks on the front panel.

Synth
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We stock both NEW and USED parts; all used electronic parts are tested and guaranteed working.

This listing reflects our current inventory and is updated in real time. If a part is shown as Out of Stock, we typically don't know when or if we might have it again - but click on the part for more info, and then you will be able to sign up for an alert when we do have it available again. By including out of stock parts in our listings, we hope to offer customers a more complete and useful resource.

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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, 4051 multiplexer chip
IC, 4051 multiplexer chip
$2.95 (Part #4319)
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IC, 4070 quad 2-input exclusive OR gate
IC, 4070 quad 2-input exclusive OR gate
$2.95 (Part #5172)
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IC, 4558 dual op amp
IC, 4558 dual op amp
$2.95 (Part #3387)
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IC, 7407 hex buffer/driver chip
IC, 7407 hex buffer/driver chip
$2.95 (Part #3397)
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IC, 74LS00N quad gate
IC, 74LS00N quad gate
$2.95 (Part #3429)
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IC, 74LS02 quad NOR gate
IC, 74LS02 quad NOR gate
$2.95 (Part #1757)
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IC, 74LS04 hex inverter
IC, 74LS04 hex inverter
$2.95 (Part #3147)
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IC, 74LS138 decoder/demultiplexer
IC, 74LS138 decoder/demultiplexer
$3.95 (Part #3251)
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IC, 74LS139 decoder/demultiplexer
IC, 74LS139 decoder/demultiplexer
$2.95 (Part #4263)
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IC, 74LS157 multiplexer
IC, 74LS157 multiplexer
$3.95 (Part #4316)
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IC, 74LS20, dual 4-input NAND gate
IC, 74LS20, dual 4-input NAND gate
$2.95 (Part #10675)
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IC, 74LS245 bus transceiver
IC, 74LS245 bus transceiver
$2.95 (Part #3395)
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IC, 74LS32N quad gate
IC, 74LS32N quad gate
$2.95 (Part #4262)
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IC, 74LS74 dual flip-flop
IC, 74LS74 dual flip-flop
$2.95 (Part #3396)
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IC, TL081 op amp
IC, TL081 op amp
$2.95 (Part #4260)
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IC, TL082 op amp
IC, TL082 op amp
$2.95 (Part #3423)
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Potentiometer, 10KB rotary
Potentiometer, 10KB rotary
For Total Tune, Cal
$17.95 (Part #3495)
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Potentiometer, 10KB rotary
Potentiometer, 10KB rotary
For Total Tune, Cal
$17.95 (Part #3495)
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Power switch, amber
Power switch, amber
For 120V models only
$14.95 (Part #1400)
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Switch, aluminum lever, 2-position
Switch, aluminum lever, 2-position
For Cycle
$14.95 (Part #1551)
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Switch, aluminum lever, 3-position
Switch, aluminum lever, 3-position
For Sync
$16.95 (Part #4484)
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Transistor, 2SA1015
Transistor, 2SA1015
$1.95 (Part #3294)
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Transistor, 2SA1175
Transistor, 2SA1175
$1.95 (Part #7220)
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Transistor, 2SC1815
Transistor, 2SC1815
$2.95 (Part #1943)
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Transistor, 2SD880
Transistor, 2SD880
$2.95 (Part #2955)
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Voltage regulator, 78L05
Voltage regulator, 78L05
$2.95 (Part #2339)
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