6C33C

POWER TRIODE

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a - anode, c- grid, k- cathode, pi- heater.

Dimensions
 

General characteristics

6C33C was originaly used as regulator in tension stabilizer.
Envelope: glass.
Mass: 200 g.
 

Capacitance between electrodes in pF

On grid:30+-7. On plate: 10.5+-1. Grid to plat: 31+-7. Between cathode and heater: 70 max.
 

Nominal Electrical characteristics

if heaters connected in serie Uh = 12.6 V,
if heaters connected in parallel Uh = 6.3 V,


Anode voltage, V 120
Resistance in cathode circuit, Ohm 35
Heater current if heaters in serie, A 3.2+-0.4
Heater current if heaters in parallel, A 6.6+-0.6
Anode current, mA 540+-90
Reverse grid current, µA 5 max
Leakage currents, µA:
     anode to other electrodes 30 max
     grid to other electrodes 20 max
     cathode to heater 150 max
Transconductance, mA/V 39+-11
Transconductance when Uh = 11.3 V, mA/V 24 mini
Plate resistance, Ohm 130 max
Vibration noise (by Ra=2 kOhm), mV 500 max
Operation time, h > 1000

 

Maximum ratings

Heater voltage if heaters in serie, V 11.3 - 13.9
Heater voltage if heaters in parallel, V 5.7 - 6.9
Anode voltage, V:
      by anode dissipation > 30W 250
      by anode dissipation < 30W 450
      on switch-on 600
Grid voltage, V -0.5 to -150
Cathode – heater voltage, V 300
Anode current, mA:
      using one cathode 350
      using two cathodes 600
Anode dissipation, W
      using one cathode 45
      using two cathodes 60
Resistance in grid circuit, Mohm 0.2
Tube temperature, °C
      ambient temperature = 20 °C 260
      ambient temperature = 100 °C 300
Mechanical resistance:
Acceleration of vibration loads by frequencies 10 to 250 Hz, g 4
Acceleration of multiple impacts, g 35
Ambient temperature, °C -60 to +100

 

Typical Characteristics

     

 

thanks to oldradio.al.ru The Encyclopedia of Tube Electronics