6N9S = 6H9C
Equivalent to 6SL7GT, ECC35,
5691
General
Double triodes, used as an low frequency power amplifier.
Envelope: glass.
Mass 34 g.
Lead diagram
General characteristics
| Type |
6N9S
|
| Filament voltage,
Volt |
6.3
|
| Anode voltage, Volt |
250
|
| Grid voltage, Volt |
-2
|
| Resistance in cathode
circuit, Ohm |
--
|
| Type |
6N9S
|
| Filament (heater)
current, mA |
300
|
| Anode current, mA |
2.3
|
| Reverse grid current,
mkA |
£1
|
| Dissipate cathode-heater
current, mkA |
£20
|
| Mutual conductance,
mA/V |
1.7
|
| Gain coefficient |
70
|
| Vibration noise (by
RA=2 kOhm), mV |
£400
|
Inter electrode capacitance,
pF:
input |
2.5
|
| output |
1
|
| transfer |
4
|
| Operation time, h |
³1500
|
Limited
operating values
| Type |
6N9S
|
| Filament voltage,
V |
5,7-7
|
| Anode voltage, V |
275
|
| Cathode - heater
voltage, V |
100
|
| Anode dissipation,
W |
1.1
|
| Resistance in grid
circuit, MOhm |
0.5
|
Operating environmental
conditions
| Type |
6N9S
|
| Acceleration of vibration
loads, g |
2,5
|
| by frequencies, Hz |
10-150
|
| Acceleration of multiple
impacts, g |
35
|
| Ambient temperature,
°Ñ |
-60
to +70
|
| Relative humidity at
up to 40°C, % |
98
|
Plate-grid and plate
curves
