| How accurate is your clock source? You can use this compact stand-alone crystal tester to check the correct functionality of an unknown quar...
| How accurate is your clock source? You can use this compact stand-alone crystal tester to check the correct functionality of an unknown quar...
| Employing a vibrating membrane, measurement of DC voltages or electric fields from charged items (ESD) are possible. The sensor can be homem...
| Employing a vibrating membrane measurement of DC voltages or electric fields from chrged items (ESD) are possile. The sensor can be homemade...