jgw4/a1cardsThe Apple Cassette Interface "ACI" card has been completely reverse-engineered in KiCad 10, with linked KiCad and schematic files, which output production-ready gerber files and a fully-populated step file of the card…
Graphicard is an open-source printed circuit board by jgw4, from the jgw4/a1cards repository on GitHub. It is a 2-layer board of 95.6 × 87.9 mm with 34 parts on 113 nets, routed with 1,133 tracks and 41 vias.
It is built around the SN74HC574N, MC74HC00AN and SN74HCT04N, with the SN74HCT138DRE4 and 2N2222A among its other parts. Its parts include 15 capacitors, 10 ICs, 3 resistors, 2 connectors and 1 transistor.
The Apple Cassette Interface "ACI" card has been completely reverse-engineered in KiCad 10, with linked KiCad and schematic files, which output production-ready gerber files and a fully-populated step file of the card with components.
The PCB File was made by importing gerber files for "PCB-07" first into KiCad, and mapping the schematics to it by applying footprints to the symbols, placing over the gerber geometry, and then removing the import gerber geometry
The Board is 100% complete and ready for production. gerber files are available in the /gerbers/ folder
| Qty | Value | Footprint | References |
|---|---|---|---|
| 11 | 100nF | Capacitor_THT:C_Disc_D7.5mm_W2.5mm_P5.00mm | C1, C2, C3, C4, C6, C7, C8, C9, C10, C12, C15 |
| 3 | SN74HC574N | Package_DIP:DIP-20_W7.62mm_Socket_LongPads | U4, U5, U6 |
| 2 | 220uF | Capacitor_THT:CP_Radial_D8.0mm_P3.50mm | C11, C14 |
| 2 | MC74HC00AN | Package_DIP:DIP-14_W7.62mm_Socket_LongPads | U1, U2 |
| 1 | 1/4W RESISTOR | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R4 |
| 1 | 10.738635 | Crystal:Crystal_HC49-U_Vertical | Y1 |
| 1 | 22pF | Capacitor_THT:C_Rect_L4.6mm_W2.0mm_P2.50mm_MKS02_FKP02 | C5 |
| 1 | 2N2222A | Package_TO_SOT_THT:TO-92_Inline_Wide | Q1 |
| 1 | 40p | MINIATURE 6MM TRIMMER CAPACITOR BY PANASONIC | C13 |
| 1 | 470 1/4W | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2 |
| 1 | 62256 | Package_DIP:DIP-28_W15.24mm_Socket_LongPads | U7 |
| 1 | 75 1/4W | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1 |
| 1 | Apple-1 Expansion connector | graphicard:edgeconnector | J1 |
| 1 | HEADERDIP3HEADERDIP3 | Button_Switch_THT:SW_Slide-03_Wuerth-WS-SLTV_10x2.5x6.4_P2.54mm | IRQ/NMI1 |
| 1 | Header-Female-2.54_2x22 | Connector_PinSocket_2.54mm:PinSocket_2x22_P2.54mm_Vertical | P2 |
| 1 | IN | graphicard:KEYSTONE_900 | U9 |
| 1 | OUT | graphicard:KEYSTONE_900 | U8 |
| 1 | SN74HCT04N | Package_DIP:DIP-14_W7.62mm_Socket_LongPads | U3 |
| 1 | SN74HCT138DR | Package_DIP:DIP-16_W7.62mm_Socket_LongPads | U13 |
| 1 | TMS9918A | Package_DIP:DIP-40_W15.24mm_Socket_LongPads | VDC1 |
jgw4/a1cards
The Apple Cassette Interface "ACI" card has been completely reverse-engineered in KiCad 10, with linked KiCad and schematic files, which output production-ready gerber files and a fully-populated step file of the card…
jgw4/a1cards
The Apple Cassette Interface "ACI" card has been completely reverse-engineered in KiCad 10, with linked KiCad and schematic files, which output production-ready gerber files and a fully-populated step file of the card…
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jensma-de/MM58167-ISA-RTC
RTC module for the ISA slot. With schematics, project files in kicad and open source software to drive the clock.
It measures 95.6 × 87.9 mm and has 2 copper layers, 1.6 mm thick.
34 parts, built around the SN74HC574N, MC74HC00AN, SN74HCT04N and SN74HCT138DRE4. 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.
From the jgw4/a1cards repository on GitHub, at the commit this page was made from: the board is graphicard/graphicard.kicad_pcb and its schematic aci/aci.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask jgw4 before reusing the design.