eurorack breadboard prototyping facilitator mk4.1
author: methylcain
2 layer board of 2.00 x 1.30 inches (50.8 x 33.0 mm)
Uploaded:
October 24, 2026
Shared:
October 24, 2026
Total Price:
$13.00
designed to use either a l7805 or lm4931 voltage regulator but may be used with other pin compatible regulators. only populate U1 OR U2! not both!
all resistors 10-22R~ all diodes 1n4148 or similar all capacitors 10-50uf~
3 pin header labelled R - G is used with a 2 pin jumper to switch between Reg and Gnd on the second highest rail.
the regulator, caps (C3,C4) and resistor (R3) can be omitted from assembly if the functionality is not desired. one could also simply solder the two pins used to select Gnd on the 3 pin R - G header together in this case to save the two components.
designed to use either a l7805 or lm4931 voltage regulator but may be used with other pin compatible regulators. only populate U1 OR U2! not both!
all resistors 10-22R~ all diodes 1n4148 or similar all capacitors 10-50uf~
3 pin header labelled R - G is used with a 2 pin jumper to switch between Reg and Gnd on the second highest rail.
the regulator, caps (C3,C4) and resistor (R3) can be omitted from assembly if the functionality is not desired. one could also simply solder the two pins used to select Gnd on the 3 pin R - G header together in this case to save the two components.
