6I1P-EV (original box)

Description

The 6I1P-EV triode-heptode of increased durability, reliability and mechanical strength. Designed for frequency conversion with simultaneous automatic gain control in broadcasting receivers.
The 6I1P-EV triode-heptode is used in radio receiving equipment and other radio engineering devices for general and special purposes. Works in any position.

E – characterizing the increased durability of the tube;
V – tube with increased reliability and mechanical strength.

Technical specifications:

• Heating voltage: 6.3, V
• Heptode anode voltage: 250, V
• Voltage on the second and fourth grids: 100, V
• Voltage on the third grid of the heptode: -9.4, V
• Bias voltage on the first grid of the heptode: -2, V
• Bias voltage on the first grid of the triode: -9.4, V
• Triode anode voltage: 100, V
• Heating current: 300 ± 25mA
• Current in triode anode circuit: 11 ± 4mA
• Current in the heptode anode circuit: 3.3 ± 1.2mA
• Current in the circuit of the second and fourth grids: 6 ± 2mA
• Current in the circuit of the third heptode grid: 200µA
• Current in the circuit of the first grid of the triode: 200µA
• Heptode conversion steepness: 0.77mA/V
• Heptode internal resistance: 1MOhm
• Triode slope: 3.7mA/V
• Triode Gain 25
• Operating time not less than 750 hours.