OG-3 (ОГ-3)
Dekatron counting tube
(Version with Bakelite base)
Made by Анод, Дятьково, Россия (Anode, Dyatkovo, Russia)

Bi-directional single-pulse decimal counting tube.
Argon 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 OG-3 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 high shutter speed of the camera:

a medium shutter speed of the camera:

a low shutter speed of the camera:

An animation sample of a spinning Dekatron (neon filled, colour not like the OG3!):

Röhrendaten/Tube Data:

German English    
Röhrentyp Tube type   O-G3 (ОГ-3)
Hersteller Brand   Анод, Дятьково, Россия (Anode, Dyatkovo, Russia)
Vergleichstypen Substitutes   -
Zähl-Richtung Counting direction   bidirectional
Arbeitsweise Operation   single pulse
Art Sort   counting tube
Sockel Base   K8A
Fassung Socket   K8A
Nullposition Zero position   Pin 1
Zähl-Schritte Counting steps   10
Anzahl der Hilfskathoden Number of guides   3
Gasfüllung Gas filling   Argon
Röhrendurchmesser maximal Tube diameter max. mm 33
Röhrenhöhe maximal Tube height max. mm 76
max. Zähl-Geschwindigkeit Max. counting speed kHz 20
Betriebsspannung minimal Supply volt. min. V 420
Betriebsspannung typisch Supply volt. typ. V 450
Brennspannung minimal Maintaining voltage min. V 170
Brennspannung typisch Maintaining voltage typ. V 190
Brennspannung maximal Maintaining voltage max. V 210
Anoden bzw. Kathodenstrom min. Anode/cath. current min. µA 600
Anoden bzw. Kathodenstrom typ. Anode/cath. current typ. µA 700
Anoden bzw. Kathodenstrom max. Anode/cath. current max. µA 800
Netzteil Leistung minimal Power supply power min. mW 315
Hilfskathodenvorspannnung minimal Guide bias volt. min. V 40
Hilfskathodenvorspannnung Impulsbetrieb typ. Guide bias typ pulse op. V 40
Hilfskathodenvorspannnung maximal Guide bias volt. max. V 50
Hilfskathodenimpulsspannung Guide signal voltage pulse Vp 110-140 (125)
Hilfskathodenimpulsdauer minimal Guide signal pulse duration min µs 17-22
Resetimpulsdauer min. Reset pulse duration min. µs 2-5
Anschlussbelegung: Pinout:    
PIN 01 PIN 01   G3
PIN 02 PIN 02   K1-9
PIN 03 PIN 03   G2
PIN 04 PIN 04   NC
PIN 05 PIN 05   G1
PIN 06 PIN 06   A
PIN 07 PIN 07   Guide3 (K0)
PIN 08 PIN 08   K0

Pinout, outline and typical application:


The OG-3 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.



Sie finden passende Datenblätter im Datenblattarchiv.
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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