6S7B-V leads:
1 anode
2 filament
3 filament
4 grid
5 cathode
6S7B-V leads:
1 anode
2 filament
3 filament
4 grid
5 cathode
The length of the leads is not less than 30mm, the diameter of the leads is 0.4mm.
It is not allowed to bend and solder the leads closer than 3mm from the body to avoid the formation of glass chips on the cylinder.
6S7B-V triode designation on schemes:
A- anode
C - grid
K - cathode
H - filament
Parameters of the 6S7B-V tube:
(nominal mode).
Pump voltage 6.3V
Anode voltage 250V
Grid bias voltage -2V
Recommended resistance in the cathode circuit for automatic bias 400 ohms
Pump current 200±20mA
Anode current 4.5±1.3mA
Slope of characteristic 4,2±0,9mA/V
Same at Un=5.6V >2.8mA/V
Gain factor 70±15
Cathode-heater leakage current <20µA
Grid reverse current <0.2µA
Grid insulation resistance (at Ua=0V, Uc=-300V, Un=0V) >200Mohm
Grid isolation resistance (at Ua=-300V, Ua=0V, Un=0V) >100Mohm
Input capacitance 3,3±0,9pF
Output capacitance 3,4±0,9pF
Pass capacitance <1,0pF
Cathode-heater capacitance <7pF(type 3,8pF) MTBF >2000h
Weight <2,5g
Limit parameters of 6S7B-V tube:
Pump voltage 5.7..6.9V
Anode voltage 300V
Locked lamp anode voltage 350V
Grid voltage negative -50V
Maximum power at anode 1.45W
Maximum voltage between cathode and heater ±150V
Maximum cathode current 7mA
Maximum resistance in the grid circuit 1Mohm
Maximum cylinder temperature +170°C