- Marblehead, Massachusetts, United States
- May 29th
This is a great piece of test equipment that includes a Volt Ohm meter, a capacitance tester and a TV-7 tube tester in one package. This is a true mutual conductance (Gm) tube tester and, unlike the TV-2 and the TV-7 testers the meter displays Gm directly using three Gm range scales: 3000, 6000 and 15,000. The TV-3 measures shorts/leakage up to 300K Ohms.