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Roland HP-20

Released in 1984

The HP-20 and HP-20S Piano Plus are 61-note electronic pianos with built-in speakers.

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.

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Button, orange, Roland
Button, orange, Roland
$11.95 (Part #1359)
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Contact strip, 12-note, Roland
Contact strip, 12-note, Roland
$16.95 (Part #4330)
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Contact strip, 13-note, Roland
Contact strip, 13-note, Roland
$16.95 (Part #4331)
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IC, 4013 flip-flop
IC, 4013 flip-flop
$2.95 (Part #3322)
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IC, 4050 hex buffer/converter
IC, 4050 hex buffer/converter
$2.95 (Part #1775)
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IC, 74LS42 monostable multivibrator
IC, 74LS42 monostable multivibrator
$4.95 (Part #4190)
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Key bushing, rubber
Key bushing, rubber
$0.75 (Part #4327)
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Key return springs, pkg of 10
Key return springs, pkg of 10
$4.95 (Part #KEYSP7)
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Keybed cushion, 61-note
Keybed cushion, 61-note
$10.95 (Part #4795)
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Phone jack, 1/4-inch, 3-pin PCB mount
Phone jack, 1/4-inch, 3-pin PCB mount
For Output, Damper Pedal
$12.95 (Part #4546)
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Rubber foot, 3/8-inch tall
Rubber foot, 3/8-inch tall
$2.95 (Part #4295)
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Slider knob, Roland
For HP-20S only
$9.95 (Part #1477)
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Speaker, Roland
Speaker, Roland
$14.95 (Part #6947)
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Style 28T key, black note
Style 28T key, black note
$9.95 (Part #K28TBL)
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Style 28T key, note A
Style 28T key, note A
$11.95 (Part #K28TA)
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Style 28T key, note B or E
Style 28T key, note B or E
$11.95 (Part #K28TBE)
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Style 28T key, note C or F
Style 28T key, note C or F
$11.95 (Part #K28TCF)
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Style 28T key, note D
Style 28T key, note D
$11.95 (Part #K28TD)
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Style 28T key, note G
Style 28T key, note G
$11.95 (Part #K28TG)
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Style 28T key, top C note
Style 28T key, top C note
$19.95 (Part #K28TC8)
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Transistor, 2SA1015
Transistor, 2SA1015
$1.95 (Part #3294)
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Transistor, 2SC1815
Transistor, 2SC1815
$2.95 (Part #1943)
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Voltage regulator, 7805
Voltage regulator, 7805
$2.95 (Part #2256)
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Voltage regulator, 78L15
Voltage regulator, 78L15
$1.95 (Part #7197)
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