1pcs GP-3 (GP3, ГП-3) USSR High-Voltage Regulating Tetrode Tube, NOS Valve

Description

1pcs GP-3 (GP3, ГП-3) USSR High-Voltage Regulating Tetrode Tube, NOS Valve
1pcs (tube) in one lot
NOS (New Old Stock)
-
You buy what you see at the photo
Svetlana
Brand
DESCRIPTION:
GP-3 -
High-voltage regulating tetrode GP-3 for operation in electronic high-voltage voltage stabilizers.
The decoration is glass.
Location of pins RSh25.
Weight - 200 g.
Main technical parameters of GP-3:
Un = 6.3 V, Uc2 = 80 V, Uа = 1.2 kV, Ia = 5 mA
Filament current 1.5 ± 0.15 A
2nd grid current no more than 0.2 mA
1st grid reverse current no more than 3 μA
The voltage of the 1st grid at the operating point is negative 5.5 ± 1.5V
The blocking voltage of the 1st grid is negative (at Uc2 = 100 V, Ia = 0.2 mA) no more than 18 V
Slope characteristics 2.65 ± 0.55 mA / V
Gain not less than 2500
Interelectrode capacitances, pF:
- grid - cathode no more than 23
- anode - cathode no more than 5
- mesh - anode no more than 0.05
Limiting performance characteristics of GP-3:
Filament voltage 5.7 - 6.9V
Anode voltage 10 kV
Anode voltage when switched on to a cold lamp 20 kV
Minimum anode voltage:
- at Iа = 15 mA 1 kV
- at Iа = 10 mA 0.7 kV
- at Iа = 5 mA 0.5 kV
2nd grid voltage 120 V
Voltage of the 2nd grid when switched on to a cold lamp 200 in
1st grid voltage is negative 50 in
Voltage between cathode and heater ± 150V
Power dissipated by the anode 60 watts
Ambient operating temperature range from -65 to +100 С
DELIVERY:
Dear customers, we ship via International Airmail.
Perfect and safely shipping. Tracking number is always provided.
We use standard mail service for shipping all tubes/valves.
We ship from Ukraine.
Important note - all international mail services are currently working, so purchased items will 100% be shipped to your location!
We combine lots to save you money on delivery.
Parcels are divided into categories depending on the weight ( product + package weight).
Delivery prices:
0-250 grams - 7.9-10 $
Package weight (50 grams)
250-500 grams - 14 - 16 $
Package weight (100 grams)
500-1000 grams - 24-28 $
Package weight (200 grams)
Every next kilogram + $ 10 and + 200 grams of weight.
You will be able to choose the most favorable ratio of price, product and cost.
The price of delivery has increased significantly, but we try to almost not change the cost of delivery.
If you accidentally overpaid for delivery, we will refund your money.
If you have any questions, we are always ready to communicate and help you.
However, some delays in both Standard and Express services may happen.
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