Полиатрон А-201
A-201 Polyatron Counting Tube
Tube compteur décimal
Dekadenzählröhre

Manufactured by • Fabriqué par • Hergestellt von : JSC Research Institute of Gas Discharge Devices “PLASMA”, Ryazan, Russian Federation.

This rare counting tube is a 10 kHz polyatron or “inverse dekatron”. While traditional dekatrons have a central anode surrounded by a ring of cathodes, polyatrons have a central cathode surrounded by a ring of anodes and a screen electrode. This structure prevents cathode poisoning, but it also prevents direct viewing of the count through the top of the tube. Polyatrons can directly drive Nixie tubes.

Fiche technique • Data sheet • Datenblatt: A-201.pdf & A201.pdf

Thanks to Alexander Nazarenko for providing documentation about this tube.

 Video on YouTube: Rare Soviet A-201 Dekatron Spinning.

 

Hauteur • Height • Höhe : 41 mm • 1" 5/8
Diamètre • Diameter • Durchmesser : 29 mm • 1" 1/8

 

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