4pcs 6P30B Ultra-Miniature Output Pentode, NOS Tubes, Vintage Soviet Valves

Description

4pcs 6P30B Ultra-Miniature Output Pentode, NOS Tubes, Vintage Soviet Valves
4 pcs (tubes) in one lot
NOS (New Old Stock)
DESCRIPTION:
6P30B -
Ultra-miniature output pentode with increased reliability.
Designed for operation in the output stages of radio engineering devices.
Indirectly heated oxide cathode.
Works in any position.
Produced in miniature glass design.
Durability not less than 1500 hours.
Weight not more than 6.5 g.
Technical characteristics and electrical parameters:
Rated electrical data:
• Heater voltage, V 6,3 ± 0,6
• Heating current, mA 395
• Voltage at the anode, V 120
• Voltage on the second grid, V 120
• Resistance in the cathode circuit, Ohm 330
• Current in the anode circuit, mA 35 ± 8
• Current in the second grid circuit, mA 1.3 ± 0.7
• Slope of characteristic, mA / V 4.45
Maximum permissible electrical parameters:
• The highest voltage at the anode, V 250
• The highest voltage on the second grid, V 350
• The highest power dissipated at the anode, W 5.5
• The highest power dissipated on the second grid, W 2
• The highest current in the cathode circuit, mA 60
• The highest voltage at the anode with a locked lamp, V 350
• The highest voltage cathode-heater, V 200
• The greatest resistance in the circuit of the first grid, mΩ 1
• Decoration glass miniature
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