This life test is made on sample lot of tubes with heater voltage of 6.3 volts; plate supply voltage of 100 volts; dc heater-cathode voltage (heater positive ...
Each tube is stabilized before characteristics testing by continuous operation for at least 45 hours at room temperature and with dissipation.
5719. QUICK REFERENCE DATA. The Premium Subminiature. Type 5719 is a high mu triode designed for use in low level audio applications. It is intended for ...