Siel Orchestra

Released in 1979

The Orchestra (which Arp also released as the Quartet) is a 49-note paraphonic string/brass/piano/organ machine. Two of these types of sounds can be layered together at once. In 1983, Siel released the Orchestra 2, which added many more panel controls as well as a flanger-type effect.

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.

We cannot diagnose repair issues by phone or email. For technical questions, we suggest posting on our Forums, where our techs - as well as other users - can offer help.

Siel Orchestra replacement keys
Replacement Keys
Contact spring holder
Contact spring holder
$1.95 (Part #1516)
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DIN connector, 5-pin, female
DIN connector, 5-pin, female
For Volume Pedal
$2.95 (Part #5132)
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Diode, 1N4148
Diode, 1N4148
$0.95 (Part #3788)
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Fuse holder
Fuse holder
$7.95 (Part #2527)
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IC, 1458 op amp
IC, 1458 op amp
$2.95 (Part #3685)
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IC, 4011 quad gate
IC, 4011 quad gate
$2.95 (Part #3391)
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IC, 4013 flip-flop
IC, 4013 flip-flop
$2.95 (Part #3322)
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IC, 4016 quad analog switch
IC, 4016 quad analog switch
$2.95 (Part #3302)
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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, 4071 quad 2-input OR gate
IC, 4071 quad 2-input OR gate
$2.95 (Part #2716)
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Key contact spring, 35mm
Key contact spring, 35mm
$3.95 (Part #1459)
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Key return spring, black key
Key return spring, black key
$1.95 (Part #5982)
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Key return spring, white key
Key return spring, white key
$1.95 (Part #5983)
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Phone jack, 1/4-inch, mono
Phone jack, 1/4-inch, mono
For Outputs, Sustain
$3.95 (Part #3286)
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Slide potentiometer, 10KA
Slide potentiometer, 10KA
For Sustain, Volume (The stem of this pot is 5mm shorter than the original, but will still accept the slider cap.)
$17.95 (Part #3358)
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Style 14U key, black note
$10.95 (Part #K14UBL)
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Style 14U key, note A
$12.95 (Part #K14UA)
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Style 14U key, note B
$12.95 (Part #K14UB)
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Style 14U key, note C
$12.95 (Part #K14UC)
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Style 14U key, note D
$12.95 (Part #K14UD)
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Style 14U key, note E
$12.95 (Part #K14UE)
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Style 14U key, note F
$12.95 (Part #K14UF)
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Style 14U key, note G
$12.95 (Part #K14UG)
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Style 14U key, top C note
$19.95 (Part #K14UC8)
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