Written by Accutron on 2017-02-21  

The ETL GCA10G is a rare 'direct drive' counter dekatron, designed to be directly connected to a Nixie tube which displays the dekatron's count position. The GCA10G has ten supplemental anodes arranged inside the cathode ring and aligned to each output cathode. As the glow transfer moves around the cathode ring, current will move between the supplemental anodes and the primary anode, illuminating each character of the Nixie tube in sequence.

ETL also developed the GSA10G, a direct drive selector variant with improved anode geometry which isolates the glow transfer to a specific supplemental anode. Later examples of GCA10G also incorporate this improvement.

ETL GCA10G direct drive counter dekatron.

GCA10G dekatron, top view.

This article is part of the [Glow Transfer Counting Tubes] exhibit.

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