NOS 6H7B-V (6Х7Б-В)
Ten tubes in one lot.
We ship via International Airmail from post office in Kyiv.
Tracking number is provided.
Double subminiature diode with indirectly heated oxide cathode of increased reliability and mechanical strength.
Designed to work as a detector or a low-power kenotron.
Dual diode 6X7B - designed to detect and rectify alternating current.
It is used as a detector and AGC detector in superheterodyne receivers, in cascades of discriminators and a fractional detector in frequency modulation receivers. It can be used as a rectifier for powering equipment with low current consumption.
Indirectly heated cathode.
Works in any position.
The case is glass subminiature with flexible leads.
Conclusions 6H7B:
1 anode-1
2 heating
3 cathode-1
4 screen
5 cathode-2
6 heating
7 anode-2
Tube parameters 6X7B-V:
(nominal mode)
Heating voltage 6.3V
Anode voltage (rms) 165V
Initial current of each diode < 20µA
Filament current 300±30mA
Average rectified current of each diode > 8mA
Cathode emission current > 35mA
Leakage current cathode-heater <15uA
Vibration voltage <30mV
Insulation resistance anode-cathode >100MΩ
Anode-cathode capacitance <5.8pF
Capacitance cathode-heater <5.0pF
Capacitance between anodes <0.3pF
MTBF >500h
Weight <2.5g
Limiting parameters of the tube 6X7B-V:
Heating voltage 5.7..6.9V
Anode voltage reverse amplitude 450V
Rectified current 10mA
Anode current amplitude 70mA
Maximum power at the anode 0.2W
Maximum voltage between cathode and heater 200V
Maximum bottle temperature +170°C
The fifth additional optional letter element in the main designation is always entered with a hyphen. It characterizes any special operational properties of the lamp. Usually achieved by thicker structural elements inside the lamp bulb or additional stops.
B - lamps of increased reliability and mechanical strength;
D - dumps of special durability with a guaranteed operating time of more than 10,000 hours;
E - high-durability lamps with a guaranteed operating time of more than 5000 hours;
I - lamps designed to operate in a pulsed mode; characterized by increased emissivity of the cathode;
K - lamps with high vibration resistance;
R - lamps of special reliability and mechanical strength;
EB - lamps of increased reliability, mechanical strength and durability;
DR - lamps of special reliability, mechanical strength and durability.
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