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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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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…

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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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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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MAX232REV1-2026-

author: 8bitgriffin
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2 layer board of 2.32 x 1.00 inches (59.0 x 25.5 mm)
Uploaded: February 01, 2026
Shared: March 07, 2026
Total Price: $11.65

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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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mu_solid.kicad_pcb

author: nsand
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2 layer board of 0.75 x 0.78 inches (19.0 x 19.8 mm)
Uploaded: March 04, 2026
Shared: March 04, 2026
Total Price: $2.90

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mu_thermal.kicad_pcb

author: nsand
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2 layer board of 0.75 x 0.78 inches (19.0 x 19.8 mm)
Uploaded: March 04, 2026
Shared: March 04, 2026
Total Price: $2.90

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headstage_thermal.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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