A power switch, an amplifying stage with some careful offsets, and a pitch-linear VCO driving an output transducer make a good continuity tester. The musical pitch of the tone produced is proportional to the resistance across the probe tips
| Authors | Nick Cornford |
| Main Document | Article «Tuneful track-tracing» |
| Description | Figure 1 |
| File Format / Size | PDF / 26 Kb |
| Document Language | English |
Other Materials from the Main Document
- Article «Tuneful track-tracing»
- Figure 1. A power switch, an amplifying stage with some careful offsets, and a pitch-linear VCO driving an output transducer make a good continuity tester. The musical pitch of the tone produced is proportional to the resistance across the probe tips
- Figure 3. A simple, if rather nasty, way of driving a loudspeaker
- Figure 4. An active clamp is a better way of limiting the maximum control voltage fed to the PLVCO