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6 pcs NOS TUBES in LOT. IN-4 is able to display the following shapes: "0 1 2 3 4 5 6 7 8 9".
Shape height 0.709 inch (18mm). Corresponding sockets: PL31-2V and PL31-P.

Video demonstration:https://youtu.be/NF9tZ7YN9OE

IN-4 (ИН-4)
Nixie Röhre/Nixie Tube
Variant: coarse grid
Made by Газотрон, Ровно, Украина (Gazotron, Rovno, Ukraine)

There were different variants of this tube.
This is variant with coarse grid
This tube can be used as a biquinary tube (cathodes connected externally) or a normal Nixie tube.



Röhrendaten/Tube Data
GermanEnglish  
TypType IN-4 (ИН-4)
HerstellerBrand Газотрон (Gazotron Tube Factory, Rovno, Ukraine)
VergleichstypenSubstitutes -
SymboleDisplayed symbols 0-9
SymbolhöheSymbol height 17mm (0.670")
PindurchmesserPin diameter 1 mm (0.04")
Röhrendurchmesser nominalTube diameter nominal 30 mm (1.18")
Röhrendurchmesser maximalTube diameter maximal 32 mm (1.26")
Höhe Röhrenboden bis KuppeTube height bottom to top 31 mm (1.22")
Höhe Röhre gesamtTube height total 41 mm (1.61")
Zündspannung maximalIgnition voltageV170
Anodenspannung nominalAnode voltage nominalV170
Anodenspannung minimalAnode voltage minimalV170
BrennspannungVoltage dropV150
Kathodenstrom nominalCathode current nominal mA2.5
Kathodenstrom maximalCathode current maximal mA3
Leuchtdichte minimalLuminancecd/m²100
SockelBase 
RSH31 (РШ31), Pin 7 unten/
RSH31 (РШ31), pin 7 at bottom
FassungenSockets PL31(ПЛ31)PL31p(ПЛ31п)PL31-2V(ПЛ31-2B)

 

Outline/Pinout:

PinConnection if connected biquinaryConnection if connected not biquinary
1Cathode digit 4Cathode digit 4
2Cathode digit 6Cathode digit 6
3Cathode digit 8Cathode digit 8
4ScreenAnode
5Cathode digit 9Cathode digit 9
6Cathode digit 7Cathode digit 7
7not connectednot connected
8Cathode digit 0Cathode digit 0
9Cathode digit 2Cathode digit 2
10Anode for even digitsnot connected
11Cathode digit 3Cathode digit 3
12Cathode digit 5Cathode digit 5
13Anode for odd digitsnot connected
14Cathode digit 1Cathode digit 1
 

Ansicht von unten/Bottom view