Highlights







































Description

Vacuum tubes of the plant Reflector with a silver getter on a wire. Silver shield. One month and a year of production. IV-1975.

Applicable for broadband high frequency voltage amplification, low power amplification and pulse generation.
Decoration - in a glass shell, miniature. Weight 16 g.
Foreign analogue - ECC88.

Interelectrode capacitances, pF
Input 3.6 + 0.9 - 0.85. Output of the 1st triode 2.1 + 0.35 - 0.3. Output of the 2nd triode 1.95 + - 0.3. Passage 1.55 + - 0.3. Between the anode and cathode of each triode, no more than 0.24. Between anodes of triodes no more than 0.09. Between grids of triodes no more than 0.005.


Rated electrical data
at U n u003d 6.3 V, U a u003d 100 V, U c u003d 9 V
Heating current, mA 310+-25
Anode current, mA 15+-5
Anode current at the beginning of the characteristic (at U s = - 8 V), mA no more than 0.1
Reverse grid current, u00b5A no more than 0.2
Leakage current between cathode and heater, uA no more than 15
Slope of characteristic, mA/V 10 - 12.7
The steepness of the characteristic at U n = 5.7 V at least 8.5
Gain 34+-9
Input impedance (at f = 200 MHz), Ohm 500
Equivalent noise resistance, Ohm 300
Vibronoise voltage (at Ra = 2 kOhm), mV no more than 150
Operating time, h at least 5000
Criteria for evaluation:
grid reverse current, u00b5A no more than 1
characteristic slope, mA/V at least 7.5
Maximum allowable electrical values
Heating voltage, V 5.7 - 7
Anode voltage, V 300
Anode voltage with the lamp locked, V 470
Anode voltage with the lamp locked in a pulse, V 1000
Grid voltage in the pulse is negative, V 200
Voltage between cathode and heater, V:
at positive heater potential 200
at negative heater potential 200
Cathode current, mA:
mean twenty
on impulse 200
Power dissipated by the anode of each triode, W 1.8
Power dissipated by the grid of each triode, W 0.03
Resistance in the grid circuit, Mu03a9 one
Lamp bulb temperature, deg. FROM 120
Resistance to external influences:
acceleration during vibration at a frequency of 50 Hz, g 2.5
acceleration at multiple impacts, g 35
range of ambient operating temperatures, deg. FROM From -60 to +70