Stephen| Quantity | Component name | |
| 1 | × | Metal can non eg 2N2222A |
| 1 | × | LED (any colour) |
Discrete optocouplers
Discrete optocouplers using metal can transistors and 5mm LEDs (and a saw)
Discrete optocouplers using metal can transistors and 5mm LEDs (and a saw)
| Quantity | Component name | |
| 1 | × | Metal can non eg 2N2222A |
| 1 | × | LED (any colour) |