3 open source boards using the UA741
Real designs built with the UA741, from public GitHub projects: a quick way to see how others power, decouple and connect it. Each board comes with its KiCad files, full parts list and a render — and you can simulate its firmware on HardLabs.
Opamp vos
cellularmitosis
99.7 × 49.5 mm94 parts2LMIT1
Microphone smd.step
ERC-BPGC
23.6 × 17.6 mm14 parts2LNo license6
Microphone
56 × 34 mm12 parts2LNo license6
The UA741 in open source designs
The gallery holds 3 open source boards using the UA741 from 2 GitHub repositories; a typical one measures about 56 × 34 mm and carries around 14 components.
100% are two-layer designs, the rest use four layers or more, and 33% carry an open source license.
The most starred is Microphone smd.step by ERC-BPGC.
What boards using the UA741 are built for
UA741: common questions
Where can I find a UA741 reference design?
Each of the 3 boards on this page is a real design using the UA741. Open one to see how it is wired up, with the full BOM, a render of the layout and links to its KiCad files.
How big is a typical board using the UA741?
The median is 56 × 34 mm, and 100% are two-layer designs.
What is the most popular open source board using the UA741?
By GitHub stars, Microphone smd.step by ERC-BPGC, with 6 stars.
Can I simulate one of these boards using the UA741 before building it?
Yes. HardLabs turns a board's netlist and BOM into a working simulation, so you can boot and test firmware against it with no hardware on your desk.