6P45S

Beam output tetrode for operation in horizontal scanning output stages of color image television receivers with a beam deflection of 110º. Decoration - in a glass shell. Weight 140 g.

  Main parameters at Un = 6.3 V, Ua = 50 V, Uc2 = 175 V, f = 50 Hz, Uc1 imp = -10 V

Glow current - 2.5 ± 0.2 A

Anode current in pulse at Q = 10 ≥800 mA

at Un = 5.7 V ≥700

at the beginning of the characteristic at Uc1 = -200 V ≤100 µA

Current of the second grid in a pulse at Q = 10 ≥150 mA

Reverse current of the first grid at Ua = 200 V, Uc2 = 280 V, Rk = 180 Ω, Rc2 = 3 kΩ ≤2 μA

The ratio of the anode current to the current of the second grid in the pulse ≥7

Internal resistance - ≤2.5 kOhm

Cathode heating time — ≤90 s

Interelectrode capacitance input 55 pF

weekend 20

checkpoint 1.5

Operating time — ≥500 h

Criteria for evaluation

Reverse current of the first grid - ≤10 μA

Anode current per pulse ≥640 mA

Electrical strength at Ua = 400 V, Uc2 = 300 V, Uc1 imp = 200-250 V, Ua imp = 6-7 kV, Ik. cf = 380 mA, Rc1 = 2.2 MΩ, Rc2 = 5 kΩ, f = 16000±4000 Hz, timp = 15±3 µs maintained

Limiting performance data

Heating voltage - 5.7-6.9 V

Anode voltage - 400 V

when the lamp is turned on 700

in a pulse at t = 18 µs 8 kV

Voltage of the second grid - 300 V

when the lamp is turned on 700

Voltage between the cathode and the heater - ± 100 V

The voltage of the first grid is negative - 300 V

The voltage on the beamforming plates is 50 V

Cathode current average 500 mA

Power dissipated by the anode - 35 W

Power dissipated by the second grid - 5.5 W

Resistance in the circuit of the first grid at a fixed bias of 0.5 MΩ

in the line scan scheme with stabilization 2.2

Lamp bulb temperature - 260 °C

Resistance to external influences

Vibration acceleration at 50 Hz 2.5 g

Ambient operating temperature range — -60…+70 °C