6N23P getter on a wire Soviet vintage tube

Voskhod 1970 years

Lot 2 pcs  Tested - Matched pair

Main technical characteristics:

Filament current 310 mA
Anode current 15 mA
The same at the beginning of the characteristic (at Uс = -8 V), no more than 0.1 mA
Reverse grid current, no more than 0.2 µA
Leakage current between cathode and heater, no more than 15 μA
Characteristic slope, 10-12.7 mA/V
The same at Un = 5.7 V, more than 8.5 mA/V
Gain 34
Input impedance (at F = 200 MHz), 500 Ohm
Equivalent noise impedance, 300 ohms
Vibration noise voltage (at Ra = 2 kOhm), no more than 150 mV
Interelectrode capacitances,
input 3.6 pF
output of the first triode 2.1 pF
output of the second triode 1.95 pF
pass capacitance 1.55 pF
between the cathode and anode of each triode no more than 0.24 pF
between triode anodes no more than 0.09 pF
between triode grids no more than 0.005 pF
Durability with 90% service life, more than 5000 hours
Durability criterion:
reverse grid current, no more than 1 µA
characteristic slope, more than 8.5 mA/V

If you buy several lots from different brands, I will combine delivery. If you overpay for delivery, I will refund you the price that you overpaid more than the actual delivery cost!
The cost of delivery depends on the weight of the parcel.
Approximate delivery cost (the price depends on the country of the buyer's location for large parcels)
0-250 grams - 10 dollars
250-500 grams - 15 dollars
0.5 - 1 kilogram USD 25-28
1 - 2 kilograms 35-38 dollars.
I try to split large parcels into several sent so that it reaches the buyer better and faster.
Radio lamps and indicators are sent by the Ukrainian state postal service, Ukrposhta
(at this time it works very well and without failures, your purchases will be delivered without problems, all track numbers are tracked the entire way of the shipment and you can see it online in all tracking services)