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RFtest

author: DPDesign
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4 layer board of 4.05 x 1.00 inches (102.9 x 25.4 mm)
Uploaded: March 16, 2026
Shared: March 16, 2026
Total Price: $40.50

Can you create a controlled 50 ohm impedance PCB. I need the board to have a specific stackup where the height between the top layer and second ground layer is 12 mils and the total board thickness is 62 mils.

Can you create a controlled 50 ohm impedance PCB. I need the board to have a specific stackup where the height between the top layer and second ground layer is 12 mils and the total board thickness is 62 mils.

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CD Changer Passthrough Breakout

author: akreager
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2 layer board of 0.87 x 3.15 inches (22.0 x 80.0 mm)
Uploaded: March 15, 2026
Shared: March 15, 2026
Total Price: $13.60

This is a pass-through breakout board used for reverse engineering the CD changer protocol from 1990's Kenwood automotive head units.

This is a pass-through breakout board used for reverse engineering the CD changer protocol from 1990's Kenwood automotive head units.

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USBi fanout 1.0.0

author: rsdio
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2 layer board of 2.40 x 1.11 inches (61.0 x 28.2 mm)
Uploaded: March 14, 2026
Shared: March 14, 2026
Total Price: $13.30

Fanout from Analog Devices USBi, with Extended SPI Latch Signal Pinout connections, to five separate SPI Control Ports.

Fanout from Analog Devices USBi, with Extended SPI Latch Signal Pinout connections, to five separate SPI Control Ports.

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harp.breakout.analog

author: nathan.mars.alleninstitute
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2 layer board of 1.57 x 2.95 inches (40.0 x 75.0 mm)
Uploaded: March 12, 2026
Shared: March 12, 2026
Total Price: $23.20

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RP2040-Zero based PWM fan control.

author: jamesotron
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2 layer board of 1.23 x 2.60 inches (31.2 x 66.0 mm)
Uploaded: March 12, 2026
Shared: March 12, 2026
Total Price: $15.95

I needed to control a handful of 4-pin fans. Flash with the accompanying firmware to have USB CDC-based control of all four connected fans as well as the on board RGB LED and temperature sensor. Fans are controllable via both duty cycle or RPM (with tun…

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I needed to control a handful of 4-pin fans. Flash with the accompanying firmware to have USB CDC-based control of all four connected fans as well as the on board RGB LED and temperature sensor. Fans are controllable via both duty cycle or RPM (with tun…

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Four Step Octaved Sequencer 1.1.2

author: oskitone
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2 layer board of 3.71 x 1.75 inches (94.3 x 44.4 mm)
Uploaded: April 04, 2018
Shared: March 12, 2026
Total Price: $32.45

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RAD_Compute_CAN_Breakout

author: RADLab
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2 layer board of 3.50 x 0.43 inches (89.0 x 11.0 mm)
Uploaded: March 12, 2026
Shared: March 12, 2026
Total Price: $7.55

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Commodore 64 PLA replacement - GAL20V8

author: Tobrew
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2 layer board of 1.06 x 1.41 inches (26.9 x 35.9 mm)
Uploaded: March 12, 2026
Shared: March 12, 2026
Total Price: $7.45

Commodore 64 PLA replacement board using 2 Lattice GAL20V8B-25 ICs. Original Open Source Design by Daniel Mantione

Direct replacement for the 906114-01 PLA chip

Designed to be plugged into a socket, not to be soldered directly to the PCB. Works on all C64 motherboards. Works with Super Zaxxon, …

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Commodore 64 PLA replacement board using 2 Lattice GAL20V8B-25 ICs. Original Open Source Design by Daniel Mantione

Direct replacement for the 906114-01 PLA chip

Designed to be plugged into a socket, not to be soldered directly to the PCB. Works on all C64 motherboards. Works with Super Zaxxon, …

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      Since this is a project designed by a community member, it may contain design errors that prevent it from working as intended. OSH Park cannot place any guarantees about the functionality or correctness of the design.
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PR22862

author: aianetta
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2 layer board of 5.50 x 5.50 inches (139.8 x 139.8 mm)
Uploaded: March 05, 2026
Shared: March 11, 2026
Total Price: $151.45

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PR22863

author: aianetta
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2 layer board of 3.73 x 2.36 inches (94.8 x 60.0 mm)
Uploaded: March 05, 2026
Shared: March 11, 2026
Total Price: $44.10

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HFLPF

author: Megas3300
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2 layer board of 2.18 x 1.30 inches (55.3 x 33.0 mm)
Uploaded: March 10, 2026
Shared: March 10, 2026
Total Price: $14.10

HF LPF based on Coilcraft Unicoil 10mm and 7mm tunable inductors.

HF LPF based on Coilcraft Unicoil 10mm and 7mm tunable inductors.

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LDO_INST_SEEBoard_2026-03-10

author: mckinnmwIU
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2 layer board of 3.55 x 3.78 inches (90.3 x 96.0 mm)
Uploaded: March 10, 2026
Shared: March 10, 2026
Total Price: $67.15

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myDRAMTester for 4164 and 41256 DRAM

author: Tobrew
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2 layer board of 2.03 x 2.10 inches (51.7 x 53.3 mm)
Uploaded: March 09, 2026
Shared: March 10, 2026
Total Price: $21.35

The DRAMduino

The DRAMTester shield is an Arduino UNO shield , to test 4164 and 41256 DRAM. It checks the DRAM with different read/write operations and is based on the work on https://forum.defence-force.org/viewtopic.php?t=1699.

4164 DRAM is found in retro computers such as the Commodore 64, A…

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The DRAMduino

The DRAMTester shield is an Arduino UNO shield , to test 4164 and 41256 DRAM. It checks the DRAM with different read/write operations and is based on the work on https://forum.defence-force.org/viewtopic.php?t=1699.

4164 DRAM is found in retro computers such as the Commodore 64, A…

Show full description

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c3-cpu-indicator-v4

author: Crawford-Griffith
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2 layer board of 1.94 x 2.52 inches (49.2 x 64.0 mm)
Uploaded: March 09, 2026
Shared: March 09, 2026
Total Price: $24.35

This is a plug-in board for an OSI Model 510 board. The 510 has 3 CPU’s and this board provides visual indication to which CPU is active. This was created to demo the OSI Challenger III at VCF East in 2026.

This is a plug-in board for an OSI Model 510 board. The 510 has 3 CPU’s and this board provides visual indication to which CPU is active. This was created to demo the OSI Challenger III at VCF East in 2026.

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22865

author: Nora
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2 layer board of 10.30 x 6.00 inches (261.6 x 152.4 mm)
Uploaded: March 06, 2026
Shared: March 06, 2026
Total Price: $309.00

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battery-12v-v1.kicad_pcb

author: dkealhofer
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2 layer board of 2.17 x 2.17 inches (55.0 x 55.0 mm)
Uploaded: March 05, 2026
Shared: March 05, 2026
Total Price: $23.45

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cut-corner-osh

author: taite-hartman
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4 layer board of 3.20 x 1.44 inches (81.2 x 36.5 mm)
Uploaded: March 05, 2026
Shared: March 05, 2026
Total Price: $45.90

Capstone project switch board

Capstone project switch board

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FINAL_UGV_GERBER_DATA

author: John_Didimos_Senior_Design
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2 layer board of 4.22 x 3.71 inches (107.1 x 94.2 mm)
Uploaded: March 04, 2026
Shared: March 04, 2026
Total Price: $78.20

This PCB is for Senior Design Team 2271.

This PCB is for Senior Design Team 2271.

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control.kicad_pcb

author: nsand
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2 layer board of 2.23 x 2.25 inches (56.7 x 57.2 mm)
Uploaded: March 04, 2026
Shared: March 04, 2026
Total Price: $25.15

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headstage.kicad_pcb

author: nsand
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2 layer board of 0.71 x 0.44 inches (18.0 x 11.1 mm)
Uploaded: March 04, 2026
Shared: March 04, 2026
Total Price: $1.50

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