GMI-30 ГМИ GMI30 = 6C21 Soviet PULSE TRIODE TRANSMITTING Tube ~ 1000T Eimac NEW
Checked. Preheated.

Main technical parameters of GMI-30:
at Un = 8.2 V, Ua = 3 kV, Uc = -400 V
The heat is hot
16.8 ± 0.9 A

Emission current (at Ua = 300 V)
not less than 20 A

Emission current (at Un = 4.8 V, Ua = Uc = 0.2 kV)
not less than 0.4 A

Grid current in pulse (at Usimp = 2 kV, Ia = 15 A, Uc = -0,4 kV)
not more than 5 A

The grid current is reversed (at Ua = 2 kV, Ia = 180 mA)
not more than 20 μA

Steepness (at Ua = 2 kV, Ia = 50 and 150 mA)
5.8 ± 10 mA / V

The locking voltage is negative
not more than 1200 V

Inter-electrode capacities, pF:
     - the entrance
9.5 ± 2.5

     - day off
not more than 2

     - checkpoint
5,3


GMI-30 performance limits:
Tension voltage
7.9 - 8.5V

Anode voltage
30 kV

The grid voltage is negative
2 - 1.4 kV

Anode current in pulse
15 A.

Grid current in pulse
6 A.

The power dissipated by the anode
300 W.

Diligence
0.02

Ambient operating temperature range
from -60 to +70 C



"GMI-30
Recently I have added for myself the list of "animals". There is a lamp in nature called GMI-30. It is a rectangular triode, electrically very similar to the GU-48, in a design different, coaxial. In addition, the standard anode is normalized to 30kV, so a good vacuum is guaranteed. Panel-standard, American, Jumbo (as in 845 and 211). Tried to listen in 2700V anode mode, -60V grid, Ra = 17K. The sound was impressive. The glow (8V 14A) is straightened. From the nuances, the anode output is heated very strongly if solder-soldered directly to the anode cap. VAHi from the reference book (for impulse modes) in our case are senseless, so I post the filmed ones."

"Interestingly, there is a very similar American light bulb, 1000T, f. Eimac. The data of glow (7.5V instead of 8 at ours) differ a little, and in the rest, including externally, - almost one in one."


Lot for 1 pc

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