Final answer:
Industrial Circuits in Far Cry 6 can be found by capturing bases, completing certain missions, and looking for supply drops or caches. They are used as crafting materials and their locations are random, requiring exploration.
Step-by-step explanation:
To find Industrial Circuits in Far Cry 6, you'll need to participate in activities such as capturing FND Bases, completing certain Yaran Stories, or searching in Supply Drops. They can also be found by opening caches which are scattered throughout Yara. Since they are a valuable crafting material, keep an eye out for opportunities to gather them during your explorations and missions.
Keep in mind that Far Cry 6's world is large and the locations of such items can be random. It might take some time and exploration to find enough Industrial Circuits for your needs. A good strategy is also to focus on completing objectives that offer resources as rewards.
Remember to check your inventory regularly to keep track of how many Industrial Circuits you have collected as you progress through the game.