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# Bill of materials
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-## Power and Control
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+![Keyboard assembly](keyboard.png)
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+## Keyboard Power and Control
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+These parts serve the entire keyboard solenoid assembly.
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Id | Type | Description | Qty | Source | Part Number
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-----|-----------------|----------------------|-----|----------|--------------------
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J3 | 6P Terminal | Screw Terminal | 2 | Mouser | 651-1725698
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@@ -8,14 +13,18 @@ P1 | HDS800PS24 | 24V Power Supply | 1 | Digikey | 1470-2689-ND
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P2 | HDS800PS12 | 12V Power Supply | 1 | Digikey | 1470-2687-ND
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P3 | TXL 015-05S | 5V Power Supply | 1 | Digikey | 1951-1325-ND
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M0 | Controller MCU | Arduino Uno R3 | 1 | Digikey | 1050-1024-ND
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- | 1/16 x 1/8 x 1/2| Rubber feet(pkg 100) | 1 | McMaster | 9753K11
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+None | 1/16 x 1/8 x 1/2| Rubber feet(pkg 100) | 1 | McMaster | 9753K11
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## Key Driver Board (11 channels per board)
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+There are 8 driver boards per keyboard solenoid assembly. Each board
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+has 11 driver circuits.
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Id | Type | Description | Qty | Source | Part Number
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-----|-----------------|---------------------|-----|----------|--------------------
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U1 | ATtiny85-20MU | Microcontroller | 11 | Mouser | 556-ATTINY85-20PU
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- | 8DIP IC | Socket | 11 | Mouser | 571-1-2199298-2
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- | 0.1uF | Capacitor | 1 | Digikey | 399-14010-1-ND
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+None | 8DIP IC | Socket | 11 | Mouser | 571-1-2199298-2
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+None | 0.1uF | Capacitor | 1 | Digikey | 399-14010-1-ND
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R1-2 | 4.7k | Resistor | 22 | Mouser | 293-4.7K-RC
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D1 | BYV32-200 | Diode | 11 | Mouser | BYV32-200GOS-ND
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D2 | SF52 | Rectifier | 11 | Mouser | 583-SF52-B
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@@ -29,6 +38,10 @@ J1 | 2P Terminal | Screw Terminal | 11 | Mouser | 651-1725656
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J2 | 6P Female .1 | Pin Terminal | 1 | Digikey | H123900-ND
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## Damper Pedal Driver Board
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+![Pedal driver assembly](keyboard.png)
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Id | Type | Description | Qty | Source | Part Number
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-----|-----------------|---------------------|-----|----------|--------------------
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R1-4 | 180 ohm | Resistor | 4 | Mouser | 660-MF1/2LCT52R181G
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@@ -42,4 +55,4 @@ U2-3 | LM7810ACT | 10V Voltage Regulato| 2 | Mouser | 512-KA7810ETU
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D1 | Bridge Rectifier| 100V 25A | 1 | Newark | GBPC2501W
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D2-3 | STTH30R061PI | Diode | 1 | Mouser | 512-RURP3060
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L1 | Push Solenoid | 24 Volt | 1 | Laukhuff| 301010
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-T1 | Power Transforme| | 1 | Digikey | 595-1961-ND
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+T1 | Transformer | | 1 | Digikey | 595-1961-ND
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