6E15P

The 6E15P (6Э15П rus.) tube is a tetrode with an indirectly heated oxide cathode. It is designed to act as a regulating element in electronic high-voltage voltage stabilizers. It operates in any position. The cathode is indirectly heated oxide. The base is a 9-pin RSh8.

6 – a number indicating the rounded value of the tube’s filament voltage in volts;
E – a letter identifying the tube type: tetrode;
15 – the serial number of the development of this tube type;
P – a letter characterizing the design: miniature tube in a glass envelope.

Technical specifications, at Uн = 6.3V, Ua = 5kV, Uс2 = 25V, Iа = 2mA:

• Heater current: 625mA ± 125mA
• Second grid current: no more than 100µA
• First grid reverse current: no more than 1µA
• First grid operating point voltage: 2.45V ± 1.15V
• First grid cut-off voltage: -10V
• Slope: 1.6mA/V ± 0.5mA/V
• Gain: 2350Interelectrode capacitances:
  -Input 5pF ± 1.5pF
  -Output 0.7pF ± 0.5pF
  -Transition capacitance no more than 0.5pF

Maximum permissible operating data:

• Heat voltage: 5.7V … 7V
• Anode voltage: 5kV
• Anode voltage when lamp is turned on: 10V
• Second grid voltage: 60V
• First grid negative voltage: 20V
• Voltage between Cathode and heater: 150V
• Anode current: 10mA
• Anode power dissipation: 10W
• Second grid dissipation: 0.15W
• Second grid circuit resistance
  -at Uс2 ≤ 40 V: at least 5 kOhm
  -at Uс2 ≥ 40 V: at least 10 kOhm
• Ambient operating temperature range: -45°C to +70°C

Operating time of at least 2000 hours