Skip to the content
PCBKitNew board
2 layers195.6 × 35.6 mmMCB-1, the printed circuit board in 3D

This is a rebuild of the MCB-1 for anybody who has the sound card it connects to.

Size
195.6 × 35.6 mm
Copper layers
2
Thickness
1.6 mm
Parts
34
Nets
29
Pads
177
Tracks, vias
160, 60
Pours
2
Routed
Yes
KiCad
KiCad 5 (file 20171130)
Created
20 Sep 2021
Updated
20 Sep 2021

Overview

MCB-1 is an open-source printed circuit board by peon374, from the peon374/MCB-1 repository on GitHub. It is a 2-layer board of 195.6 × 35.6 mm with 34 parts on 29 nets, routed with 160 tracks and 60 vias.

It is built around the 74LS05P-E and H11L3. Its parts include 14 resistors, 9 connectors, 2 capacitors, 2 ICs and 1 diode. It belongs with the audio and music boards of this library.

Main components

2

README

README.md

MCB-1

This is a rebuild of the MCB-1 for anybody who has the sound card it connects to. I will improve the documentation around assembly once I have made one of the boards. Until the docs improve assume it is a work in progress. I will save gerbers in releases setup for JLCPCB. This board is entirely through hole design so should be easy to assemble.

TODO

  • Layout rev0.1
  • Make a board and get it tested
  • Paint the Neutrik 6.5mm socket model
  • Add an assembly and debugging guide

Render

There have been a few modifications to improve availability of parts and reliability of operation.

Schematic

Parts

34
QtyValueFootprintReferences
7220Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P2.54mm_VerticalR1, R2, R5, R7, R8, R12, R13
6MountingHole_PadMountingHole:MountingHole_3.2mm_M3_Pad_ViaH1, H2, H3, H4, H5, H6
3100Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P2.54mm_VerticalR3, R4, R6
34.7KResistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P2.54mm_VerticalR9, R10, R11
3MIDI_OUTMCB1:SWITCHCRAFT_57PC5FSJ2, J4, J5
2100nFCapacitor_THT:C_Disc_D4.7mm_W2.5mm_P5.00mmC1, C2
11N4148Diode_THT:D_DO-35_SOD27_P3.81mm_Vertical_AnodeUpD1
174LS05Package_DIP:DIP-14_W7.62mmU1
1Conn_01x12Connector_PinHeader_2.54mm:PinHeader_2x06_P2.54mm_VerticalJ10
1DNFResistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P2.54mm_VerticalR15
1H11L3Package_DIP:DIP-6_W7.62mmU3
1METRONOMEConnector_Audio:Jack_6.35mm_Neutrik_NMJ4HFD3_HorizontalJ8
1MIDI_INMCB1:SWITCHCRAFT_57PC5FSJ3
1SYNCMCB1:SWITCHCRAFT_57PC5FSJ1
1TAPE_INConnector_Audio:Jack_6.35mm_Neutrik_NMJ4HFD3_HorizontalJ6
1TAPE_OUTConnector_Audio:Jack_6.35mm_Neutrik_NMJ4HFD3_HorizontalJ7

Questions

How big is the MCB-1 PCB?

It measures 195.6 × 35.6 mm and has 2 copper layers, 1.6 mm thick.

What parts does the MCB-1 use?

34 parts, built around the 74LS05P-E and H11L3. 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 MCB-1 KiCad files?

From the peon374/MCB-1 repository on GitHub, at the commit this page was made from: the board is MCB1.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the MCB-1 design in my own project?

Its repository states no licence, so its author keeps all rights: ask peon374 before reusing the design.

Similar boards

  • 2 layers100 × 77.5 mmDiskII, the printed circuit board in 3D

    DiskII

    btb/DiskII

    An Apple Disk II controller clone using standard EPROMs

    35 parts71Apache-2.0
  • 2 layers154.9 × 139.7 mm68kBoard, the printed circuit board in 3D

    68kBoard

    transistorfet/computie

    A collection of 68k computer projects, including a unix-like operating system written in C that runs on them

    78 parts69GPL-3.0
  • 2 layers100 × 77.5 mmSmartDiskII, the printed circuit board in 3D

    SmartDiskII

    btb/SmartDiskII

    An hybrid Disk ][ and SmartPort controller

    42 parts60Apache-2.0
  • 2 layersCompaqportableIII, the printed circuit board in 3D

    CompaqportableIII

    raymondh2/CompaqPortableIII

    Current PCB Memory Expansion board layout is untested. The backplane for the expansion cards is tested and working.

    123 parts17
  • 2 layers98.3 × 107.1 mmCoco9511pak, the printed circuit board in 3D

    Coco9511pak

    barberd/coco9511pak

    This board is a cartridge for the Tandy Radio Shack TRS-80 Color Computer (CoCo), an 8 bit computer produced between 1980 and 1991. It provides an Arithmetic Processor Unit (APU), the AMD 9511, to the CoCo.

    44 parts13GPL-3.0
  • 2 layers283 × 96 mmFront panel 9602, the printed circuit board in 3D

    Front panel 9602

    ibm2030/EDUC8

    EDUC-8 recreation by Gwyllym Suter

    164 parts13
  • 2 layers115 × 57.2 mmTeensyBoardZ80, the printed circuit board in 3D

    TeensyBoardZ80

    mecparts/TeensyBoardZ80

    A Teensy 4.0 emulated Z80 ZCPR3.3/ZSDOS computer.

    42 parts13MIT
  • 2 layers147.3 × 100.3 mmMini68k, the printed circuit board in 3D

    Mini68k

    seventhoctave/mini68k

    mc68008 SBC

    41 parts13