Dekatron counting tube
Made by Анод, Дятьково, Россия (Anode, Dyatkovo, Russia)

Bi-directional double-pulse decimal counting/selector tube.
Neon filled.

You'll notice a dark coating of some sort, inside the glass envelope on the top on all the Russian Dekatrons, also on that A101 Dekatrons.
That coating is NOT a sign that the tube is used, but an intentional part of the manufacturing process.

The following pictures show the tube spinning.
Of course, only one of the cathodes is glowing, but the shutter speed of the camera generates different pictures:

a normal shutter speed of the camera:

a high shutter speed of the camera:

a low shutter speed of the camera:

by night, with low shutter speed of the camera:

An animation of a spinning Dekatron:

Röhrendaten/Tube Data:

German English    
Röhrentyp Tube type   A101
Hersteller Brand   Анод, Дятьково, Россия (Anode, Dyatkovo, Russia)
Vergleichstypen Substitutes   -
Zähl-Richtung Counting direction   bidirectional
Arbeitsweise Operation   double pulse
Art Sort   SEL
Sockel Base   RSH30 (РШ30)
Fassung Socket   PL30-2p (ПЛ30-2п)
Zähl-Schritte Counting steps   10
Anzahl der Hilfskathoden Number of guides   2
Gasfüllung Gas filling   Neon
Röhrendurchmesser maximal Tube diameter max. mm 34
Röhrenhöhe maximal Tube height max. mm 76
max. Zähl-Geschwindigkeit Max. counting speed kHz 1
Betriebsspannung minimal Supply volt. min. V 425
Betriebsspannung typisch Supply volt. typ. V 450
Brennspannung minimal Maintaining voltage min. V 130
Brennspannung maximal Maintaining voltage max. V 170
Anoden bzw. Kathodenstrom min. Anode/cath. current min. µA 300
Anoden bzw. Kathodenstrom typ. Anode/cath. current typ. µA 400
Anoden bzw. Kathodenstrom max. Anode/cath. current max. µA 450
Hilfskathodenvorspannnung minimal Guide bias volt. min. V 36
Hilfskathodenvorspannnung Impulsbetrieb typ. Guide bias typ pulse op. V 40
Hilfskathodenvorspannnung maximal Guide bias volt. max. V 44
Hilfskathodenimpulsspannung Guide signal voltage pulse Vp -150
Kathodenwiderstand typisch Cathode resistor typical 33
Ausgangsspannung Output voltage V 20
Resetimpulsspannung Reset pulse voltage min. V -150
Anschlussbelegung: Pinout:    
PIN 01 PIN 01   K0
PIN 02 PIN 02   K9
PIN 03 PIN 03   K8
PIN 04 PIN 04   K7
PIN 05 PIN 05   G1
PIN 06 PIN 06   K6
PIN 07 PIN 07   K5
PIN 08 PIN 08   Anode
PIN 09 PIN 09   K4
PIN 10 PIN 10   G2
PIN 11 PIN 11   K3
PIN 12 PIN 12   K2
PIN 13 PIN 13   K1

Pinout, outline and typical application:

Rechts unten: Ansicht von unten/Lower right picture: Bottom view

The A101 Dekatron Spinner by Dieter:
The following schematic shows how to use the tube for a Dekatron spinner.
If you don't know what a Dekatron spinner is click here!
The circuit can be used at 100-125VAC/50-60 Hz or 210-240VAC/50-60Hz.



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Suchen sie dort nach dieser Type und deren Vergleichstypen.

You'll find the matching datasheets in the datasheet archive.
Search for this type and its substitutes there.

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