Jaycar Universal Pre-Punched Experimenters Board – Large (HP9554)

You're mid-prototype and every solder joint is a decision you didn't budget for. This large pre-punched board removes that friction. Each donut pad sits 0.5mm from its neighbour — isolated by default, one bridge of solder away when you need a connection. The 3.6mm edge-pitch fingers on both ends drop straight into a card-edge connector or give you clean entry/exit points for wires. And the alpha-numeric grid on the non-solder side means you can trace your layout without squinting at a blank copper field. Grab it, lay out your circuit, start soldering. RRP $16.70

• Pre-punched donut pads with 0.5mm isolation gaps — solder a bridge when you need a link
• 3.6mm edge-pitch fingers on both ends for card-edge connectors or wire entry/exit
• Alpha-numeric grid printed on the non-solder side for quick component reference
• Large format gives you room to lay out multi-stage circuits without crowding