| 14 Power supplies |
| 14.8 Special power supplies |
| 14.8.1 Programmable power supplies |
| 14.8.3 Lab power supplies |
| 15 Test and measurement |
| 15.9 Electrical parameters |
| 15.9.1 Analog measurement techniques |
| 15.9.1.1 RF measurement equipment |
| 15.9.1.1.3 Spectrum analyzers |
| 15.9.1.6 General-purpose measurement equipment |
| 15.9.1.6.4 Multimeters, voltmeters |
| 15.9.1.6.5 Signal generators |
| 15.9.1.6.6 Function generators |
| 15.9.1.6.9 Oscilloscopes |