Building an Electromagnetic Shielding Box for Low-Noise and High-Precision Circuit Measurements Step 1: Select an appropriately sized enclosure based on actual requirements Aluminum Enclosure: 1590DE Step 2: Hole punching Step 3: Non-isolated BNC Connectors: B6351B1-ND3G-50 (12 total, top and bottom edges). Isolated BNC Connectors: B6651B1-NNYL3G-50 (6 total, left and right edges). RS PRO Heat Shrink Tubing, Black 3 mm Sleeve Dia. x 10m Length 3:1 Ratio, RS PRO Series Jumper Wire Step 4: Breadboard: MIKROE-1098 Op-Amp: LMC6062 Step 5: