2pcs 30P1S (30П1С) Output Beam Tetrode with a heated oxide cathode, NOS Tubes

Description

2pcs 30P1S (30П1С) Output Beam Tetrode with a heated oxide cathode, NOS Tubes
2 pcs (tubes) in one lot
NOS (New Old Stock) -
You buy what you see at the photo
- Melz Brand
RARE ~ Same Code - 07.1952
DESCRIPTION:
The output beam tetrode 30P1S with a heated oxide cathode is intended for power amplification in devices of wide application.
Foreign counterparts: 12L6 (G, GT), 12EN6, 12W6GT, 17L6GT, 17W6GT, 25L6G (GT), 25W6GT, 6046, 50L6G (GT), KT71.
Technical characteristics and electrical parameters:
Glow voltage 30 V (25 - min, 30 - max)
Filament current 300 ± 25 mA
Nominal anode voltage (constant) 110 V
Anode voltage limit (constant) 210 V
Grid voltage second rated (constant) 110 V
Grid voltage second limit (constant) 110 V
Grid voltage first (constant) Minus 7.5 V
Anode current 70 ± 22 mA
The second grid current is not more than 12 mA
Power dissipated by the anode, limiting 7 W
The power dissipated by the second grid, the limiting 1.5 W
The highest voltage between the cathode and the heater 175 V
Slope 10 ± 2.5 mA / V
Internal resistance 10 kOhm
Output power 2W
Anode insulation resistance 20 MOhm
Insulation resistance of the grid first 20 MΩ
The greatest resistance in the first grid circuit:
fixed offset 100 kΩ
automatic offset 500 kOhm
Heating up time of the cathode 18 sec
Durability (at 90% shelf life) 500 h
Durability criterion:
Slope of characteristic not less than 6 mA / V
Ambient temperature:
the greatest plus 70 ° С
the smallest minus 60 ° С
Relative humidity at 40 ° С 95-98%
Vibration resistance 1,5 g
Input capacitance 19 pF
Output capacitance 11 pF
Pass-through capacitance 1.5 pF
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.
ANY QUESTIONS?!
Direct in eBay messages and we will help you.