General
Ttriode-Pentode
Triode used as an low frequency preamplifier in automatic gain control circuit of receivers and TV.
Pentode used in output stages of videoamplifier.
Envelope: miniature glass.
Mass 20 g.
Lead diagram
General characteristics:
|
Filament voltage, Volt |
6.3 |
|
Anode voltage of triode, Volt |
200 |
|
Anode voltage of pentode, Volt |
200 |
|
2nd grid voltage of pentode, Volt |
200 |
|
Resistance in cathode circuit of triode, Ω |
570 |
|
Resistance in cathode circuit of pentode, Ω |
140 |
|
Part |
Triode |
Pentode |
|
Filament (heater) current, mA |
720±70 | |
|
Anode current, mA |
3±1.1 |
18±4 |
|
Reverse grid (1st grid) current, mkA |
no more than 0.3 |
no more than 1 |
|
Dissipate cathode-heater current, mkA |
no more than 20 |
no more than 20 |
|
Dissipate (1st) grid-other electrodes current, mkA |
no more than 5 |
no more than 5 |
|
Dissipate plate-other electrodes current, mkA |
no more than 10 |
no more than 10 |
|
Mutual conductance, mA/V |
4±1 |
8 to 13.5 |
|
Gain coefficient (MU) |
65 |
|
|
Internal resistance, kΩ |
130 |
|
|
Inter electrode capacitance, pF: |
|
|
|
input |
3.8 |
8.7 |
|
output |
0.6 |
4.2 |
|
transfer |
2.7 |
0.1 |
Limited operating values:
|
Part |
Triode |
Pentode |
|
Filament voltage, V |
5.7 to 6.9 | |
|
Cathode – heater voltage, V |
-150 to 200 | |
|
Anode voltage, V |
250 |
250 |
|
Cathode current, mA |
12 |
40 |
|
2nd grid voltage, V |
|
250 |
|
Anode dissipation, W |
1 |
4 |
|
2nd grid dissipation, W |
|
1.7 |
|
Resistance in grid circuit, MΩ |
1 |
1 |
Operating environmental conditions :
|
Acceleration of vibration loads, g |
2.5 |
|
at the frequencies, Hz |
50 |
|
Acceleration of multiple impacts, g |
12 |
|
Ambient temperature, °? |
–60 to +70 |
|
Relative humidity at up to 40°C, % |
98 |
Plate-grid and plate curves