2 layers40.6 × 110 mm
Europi surface mount
Allen-Synthesis/EuroPi
EuroPi: A reprogrammable Eurorack module based on the Raspberry Pi Pico
92 parts584CC0-1.0
2 layers247 × 132 mm
JrBoard
chregu82/Atari2600Board9Atari 2600 Board replacement
- Size
- 247 × 132 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 162
- Nets
- 122
- Pads
- 526
- Tracks, vias
- 1,638, 136
- Pours
- 31
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 4 Dec 2020
- Updated
- 26 Jan 2021
Overview
JrBoard is an open-source printed circuit board by chregu82, from the chregu82/Atari2600Board repository on GitHub. It is a 2-layer board of 247 × 132 mm with 162 parts on 122 nets, routed with 1,638 tracks and 136 vias.
It is built around the L7805. Its parts include 56 resistors, 52 capacitors, 10 inductors, 5 transistors and 4 connectors.
Main components
1Parts
162| Qty | Value | Footprint | References |
|---|---|---|---|
| 15 | 1n | Atari2600Jr:C_leg_small | C1, C3, C4, C7, C8, C9, C10, C15, C16, C17, C18, C23, C24, C25, C34 |
| 11 | 100n | Atari2600Jr:C_leg_small | C2, C12, C21, C22, C28, C36, C38, C41, C43, C47, C49 |
| 6 | 10K | Atari2600Jr:R0.5Inch | R4, R7, R31, R45, R51, R53 |
| 6 | 1u | Atari2600Jr:L_small | L1, L2, L4, L5, L7, L11 |
| 5 | 100 | Atari2600Jr:R0.5Inch | R12, R19, R27, R32, R47 |
| 5 | 1K8 | Atari2600Jr:R0.5Inch | R1, R2, R5, R6, R56 |
| 5 | 3K3 | Atari2600Jr:R0.5Inch | R14, R30, R33, R35, R41 |
| 4 | 1K | Atari2600Jr:R0.5Inch | R24, R29, R34, R46 |
| 4 | 220 | Atari2600Jr:R0.5Inch | R3, R8, R10, R26 |
| 4 | 4u7 | Atari2600Jr:CP_small | C20, C27, C29, C37 |
| 4 | 68n | Atari2600Jr:C_oval_big | C5, C6, C13, C14 |
| 3 | 1N4148 | Atari2600Jr:Diode | CR3, CR4, CR5 |
| 3 | 2N3906 | Atari2600Jr:TR_TO92 | Q1, Q2, Q3 |
| 3 | 4K7 | Atari2600Jr:R0.5Inch | R22, R36, R39 |
| 3 | 6K8 | Atari2600Jr:R0.5Inch | R42, R44, R55 |
| 3 | 820p | Atari2600Jr:C_leg_big | C48, C53, C54 |
| 3 | DNF | Atari2600Jr:Wire | W1, W2, W3 |
| 3 | MountingHole | Atari2600Jr:HoleEdge | H1, H2, H4 |
| 2 | 22p | Atari2600Jr:C_leg_small | C51, C55 |
| 2 | 2N3904 | Atari2600Jr:TR_TO92 | Q4, Q5 |
| 2 | 470p | Atari2600Jr:C_leg_small | C11, C19 |
| 2 | 47p | Atari2600Jr:C_leg_small | C50, C52 |
| 2 | DNF | Atari2600Jr:R0.5Inch | R50, R54 |
| 1 | 0..1u | Atari2600Jr:L_var_2pin | L6 |
| 1 | 0..4u | Atari2600Jr:L_var_5pin | L8 |
| 1 | 100 | Atari2600Jr:R_small | R18 |
| 1 | 100K | Atari2600Jr:R0.5Inch | R40 |
| 1 | 100p | Atari2600Jr:C_leg_small | C33 |
| 1 | 10K | Atari2600Jr:R_small | R15 |
| 1 | 10n | Atari2600Jr:C_leg_small | C39 |
| 1 | 10p | Atari2600Jr:C_leg_small | C40 |
| 1 | 12K | Atari2600Jr:R0.5Inch | R38 |
| 1 | 15u | Atari2600Jr:L_big | L3 |
| 1 | 18K | Atari2600Jr:R0.5Inch | R48 |
| 1 | 18p | Atari2600Jr:C_4hole | C32 |
| 1 | 1K | Atari2600Jr:R_small | R20 |
| 1 | 1K5 | Atari2600Jr:R_small | R21 |
| 1 | 1M | Atari2600Jr:R0.5Inch | R28 |
| 1 | 1N4148 | Atari2600Jr:Diode_short | CR2 |
| 1 | 1u5 | Atari2600Jr:L_big | L9 |
| 1 | 20K | Atari2600Jr:R0.5Inch | R49 |
| 1 | 240 | Atari2600Jr:R0.5Inch | R11 |
| 1 | 2K2 | Atari2600Jr:R0.5Inch | R25 |
| 1 | 2K7 | Atari2600Jr:R_small | R16 |
| 1 | 2m2 | Atari2600Jr:CP_big | C26 |
| 1 | 3.546894MHz | Crystal:Crystal_HC18-U_Vertical | Y1 |
| 1 | 3.54MHz | TestPoint:TestPoint_THTPad_D2.0mm_Drill1.0mm | TP3 |
| 1 | 330 | Atari2600Jr:R_small | R17 |
| 1 | 39K | Atari2600Jr:R0.5Inch | R52 |
| 1 | 39p | Atari2600Jr:C_oval_small | C30 |
| 1 | 4.433618MHz | Crystal:Crystal_HC18-U_Vertical | Y2 |
| 1 | 4.43MHz | TestPoint:TestPoint_THTPad_D2.0mm_Drill1.0mm | TP6 |
| 1 | 4050 | Package_DIP:DIP-16_W7.62mm | A4 |
| 1 | 470 | Atari2600Jr:R0.5Inch | R37 |
| 1 | 500K | Atari2600Jr:R_Var | R9 |
| 1 | 56p | Atari2600Jr:C_leg_small | C46 |
| 1 | 5V | TestPoint:TestPoint_THTPad_D2.0mm_Drill1.0mm | TP1 |
| 1 | 6507 | Package_DIP:DIP-28_W15.24mm | A2 |
| 1 | 6532 | Package_DIP:DIP-40_W15.24mm | A1 |
| 1 | 68p | Atari2600Jr:C_leg_small | C35 |
| 1 | 750 | Atari2600Jr:R0.5Inch | R57 |
| 1 | 91 | Atari2600Jr:R0.5Inch | R23 |
| 1 | 9K1 | Atari2600Jr:R0.5Inch | R43 |
| 1 | A/V | TestPoint:TestPoint_THTPad_D2.0mm_Drill1.0mm | TP5 |
| 1 | A1_RES | TestPoint:TestPoint_THTPad_D2.0mm_Drill1.0mm | TP2 |
| 1 | A2_RES | TestPoint:TestPoint_THTPad_D2.0mm_Drill1.0mm | TP4 |
| 1 | Audio | TestPoint:TestPoint_THTPad_D2.0mm_Drill1.0mm | TP7 |
| 1 | CH3/4 | Atari2600Jr:Switch_rear | S1 |
| 1 | COLOR_SW | Atari2600Jr:Switch_top | S5 |
| 1 | Cartridge Connector | Atari2600Jr:Cartridge | J5 |
| 1 | DC In | Atari2600Jr:DC_IN | J2 |
| 1 | DIFF_L | Atari2600Jr:Switch_rear | S2 |
| 1 | DIFF_R | Atari2600Jr:Switch_rear | S3 |
| 1 | DNF | Atari2600Jr:C_oval_small | C31 |
| 1 | Joy left | Atari2600Jr:Joystick_conn | J1 |
| 1 | Joy right | Atari2600Jr:Joystick_conn | J3 |
| 1 | L7805 | Package_TO_SOT_THT:TO-220-3_Horizontal_TabDown | VR1 |
| 1 | LED RED | LED_THT:LED_D5.0mm_Clear | DS1 |
| 1 | LM3086N | Package_DIP:DIP-14_W7.62mm | A5 |
| 1 | MountingHole | Atari2600Jr:HoleTop | H3 |
The 157 most common of 162 parts.
Questions
How big is the JrBoard PCB?
It measures 247 × 132 mm and has 2 copper layers, 1.6 mm thick.
What parts does the JrBoard use?
162 parts, built around the L7805. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the JrBoard KiCad files?
From the chregu82/Atari2600Board repository on GitHub, at the commit this page was made from: the board is OrigJrBoard/JrBoard/JrBoard.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the JrBoard design in my own project?
Its repository states no licence, so its author keeps all rights: ask chregu82 before reusing the design.
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