6P3S, 6P3S-E
(6n3C, 6n3C-E)
General
Tetrode, used in output stages of low frequency amplifiers.
Envelope: glass, with octal base.
Mass 70 g.
Lead Diagram:
General Characteristics:
|
Type |
|
|
|
Filament voltage, Volt |
6.3 |
6.3 |
|
Anode voltage, Volt |
250 |
250 |
|
1st grid voltage, Volt |
-14 |
-14 |
|
2nd grid voltage, Volt |
250 |
250 |
|
|
|
|
|
Filament (heater) current, mA |
900±90 |
880±40 |
|
Anode current, mA |
72±18 |
73±13 |
|
2nd grid current, mA |
no more than 9 |
no more than 6 |
|
1st grid reverse current, mA |
< 3 |
< 0.5 |
|
Cathode current, mA |
no less than 275 |
- |
|
Output power, W |
no less than 5.4 |
no less than 5.8 |
|
Mutual conductance, mA/V |
5.2 to 6.8 |
5.2 to 6.8 |
|
Internal resistance, kOhms |
25 |
no more than 65 |
|
|
|
|
|
input |
11±2 |
11 |
|
output |
8.2 ±1.5 |
6.7 |
|
transfer |
no more than 1 |
no more than 1 |
|
Operation time, h |
> 1000 |
> 5000 |
Limited Operating Values:
|
Type |
6P3S |
6P3S-E |
|
Filament voltage, V |
5.7-7 |
6-6.6 |
|
Anode voltage, V |
375 |
250 |
|
2nd grid voltage, V |
300 |
250 |
|
Cathode - heater voltage, V |
100 |
90 / -200 |
|
Cathode current, mA |
|
90 |
|
Anode dissipation, W |
20 |
20.5 |
|
2nd grid dissipation, W |
2.75 |
2 |
|
Resistance in 1st grid circuit, kOhms |
500 |
150 |
Operating Environmental Conditions:
|
Type |
6P3S |
6P3S-E |
|
Acceleration of vibration loads, g |
1.5 |
3 |
|
By frequencies, Hz |
50 |
5 to 300 |
|
Acceleration of multiple impacts, g |
|
12 |
|
Acceleration of single impact, g |
|
100 |
|
Continuous acceleration, g |
|
100 |
|
Ambient temperature, °C |
-60 to +70 |
-60 to +160 |
|
Relative humidity at up to 40°C, % |
98 |
98 |
Plate-Grid and Plate Curves:
(images not available at this time)
So, what does all this mean? Look to the maximum voltage and current ratings. Now compare these numbers with a 'plain' 6L6GC. Can you see where blindly measuring plate current, thinking you have a 'normal' 6L6, can lead you? This is the plain and simple reason why so may 'gurus' do not like using Russian 6L6's; they are not 6L6's, and these gurus do not know how to properly evaluate these tubes. That would take test equipment, and spending time using it. The typical guru has his Fluke DVM, and that's it.
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