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REX Sharp TANDY bkw

bkw777·REX_Classic·PCB/REX_Sharp_TANDY_bkw.kicad_pcb

REX Sharp TANDY bkw PCB layout, top view — open source board by bkw777

About the REX Sharp TANDY bkw PCB

REX Sharp TANDY bkw is an open source PCB design by bkw777, published on GitHub under the Custom license license. It is a 2-layer board measuring 38 × 16.6 mm, with 10 components from 10 distinct parts.

Other key parts include the 122-1469, 1450-M29F800FB5AN6E2 and LP2980AIM5X-3.3/NOPB. By type, the board carries 3 ICs, 3 capacitors, 2 test points, 1 connector and 1 resistor.

From the project

REX for TRS-80 Model 100, 102, 200

Ordering tips for the pcb & carrier: on PCBWAY manually change the min tracks/spaces to 6mil/6mil For gold contacts, select ENIG copper finish For the carrier select material Nylon, process SLS PCBWAY is more expensive, especially for ENIG, and they don't have the best print option for the carrier. Elecrow is cheaper for ENIG, and their "High Strength Nylon" option for 3d printing is actually black nylon printed by MJF, which is the nicest for this. It's just that on Elecrow you have to upload the gerber zip and carrier stl from releases, there is no pre-configured buy page.

REX Sharp TANDY bkw, from the project README
From the project README

Main components on the REX Sharp TANDY bkw

122-14691450-M29F800FB5AN6E2LP2980AIM5X-3.3/NOPB

REX Sharp TANDY bkw bill of materials (BOM)

10 components, 10 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
122-1469
XCR3032XL-VQ44
U1
1
1450-M29F800FB5AN6E2
29F800 bottom boot
U2
1
LP2980AIM5X-3.3/NOPB
LP2980-3.3
U3
1
ROM_SOCKET_TANDY
J1
1
10129379-902002BLF
PORT_EN
TP1
1
10129379-902002BLF
3V3/VREF
TP2
1
399-8001-1
1u
C1
1
100p
C2
1
1u
C3
1
47k
R1

REX Sharp TANDY bkw design files

The KiCad project lives in the bkw777/REX_Classic repository on GitHub; these links point at the commit this page was built from.

REX Sharp TANDY bkw: common questions

How big is the REX Sharp TANDY bkw PCB?

The REX Sharp TANDY bkw measures 38 × 16.6 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the REX Sharp TANDY bkw?

10 components, from 10 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 REX Sharp TANDY bkw design files?

From the bkw777/REX_Classic repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the REX Sharp TANDY bkw design in my own project?

It is published under Custom license, which limits how it may be reused; read the license before building on it.

More boards in REX_Classic