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Junior computer display

laurent-fr·junior_computer_replica·junior-computer-display/junior-computer-display.kicad_pcb

Junior computer display PCB layout, top view — open source board by laurent-fr
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About the Junior computer display PCB

Junior computer display is an open source PCB design by laurent-fr, published on GitHub under the CC-BY-NC-4.0 license. It is a 2-layer board measuring 77.5 × 31.8 mm, with 7 components from 2 distinct parts.

It belongs with the displays & leds and retro computing designs in this gallery.

From the project

A replica of the Junior Computer (a KIM-1 clone) published by Elektor in the 80's

The Junior Computer is a 6502 SBC made by Elektor in 1980. It looks a lot like a KIM-1.

This is a replica PCB I made with KiCAD.

The best source of information for this computer is Elektor Magazine from 80's , but you can find a lot on this website : http://retro.hansotten.nl/6502-sbc/elektuur-junior/

This board is not a 100% accurate replica, because I have added directly on the PCB a few updates published later by Elektor : a fix for memory decoding needed for the expansion board the main decoupling capacitor C2 was on wrong side of S25 (activate display) which could reset the computer *…

Junior computer display, from the project README
From the project README

Junior computer display bill of materials (BOM)

7 components, 2 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
CONN_01X03_SOCKET
Display
J1
6
MAN4640A
Di1, Di2, Di3, Di4, Di5, Di6

Junior computer display design files

The KiCad project lives in the laurent-fr/junior_computer_replica repository on GitHub; these links point at the commit this page was built from.

Junior computer display: common questions

How big is the Junior computer display PCB?

The Junior computer display measures 77.5 × 31.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Junior computer display?

7 components, from 2 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Junior computer display design files?

From the laurent-fr/junior_computer_replica repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Junior computer display design in my own project?

It is published under CC-BY-NC-4.0, which limits how it may be reused; read the license before building on it.

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