2pcs 4P1L Svetlana Brand, Tested In New Box, Soviet Vintage Tubes

Description

2pcs 4P1L Svetlana Brand, Tested In New Box, Soviet Vintage Tubes
2 pcs in one lot
You buy what you see at the photo
DESCRIPTION:
Pentode 4P1L is designed to amplify and generate signals with a frequency of up to 100 MHz. It is successfully used by radio amateurs in low frequency amplifiers.
Lamp 4P1L is made in a glass case. Local base / plinth with a key lock with 8 pins. Works in any position. Directly heated cathode.
Lamp parameters 4P1L:
(nominal mode)
Filament voltage
(serial / parallel connection of filament)
4.2V / 2.1V
Filament current 315 ± 25mA / 630 ± 50mA
Anode voltage 150V
Second grid voltage 150V
Third grid voltage 0V
Voltage on the first grid
(at anode current 35mA)
-7 ± 2.5V
Anode current 40..80mA
Reverse current of the first grid 1.5μA
Slope of characteristic 4.5..7.8 mA / V
Output power 4.2W
Input capacitance 7.5..9.5pF
Output capacitance 7.8..10.8pF
Pass-through capacitance 0.1pF
Dimensions Ø32x75mm
Minimum running time 1000h
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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