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TG121A glow discharge indicator

Size This device measures 15x7mm overall and has 3 leads.

This is a glow discharge indicator developed for the purpose of obtaining a visible indication of small-signal voltages obtained from transistors and other sources.

Anode breakdown voltage 150V
Anode sustaining voltage 112V
Indicator transfer voltage -5V
Anode current range 250 to 400µA

Inside view		 TG121A

This device was donated by Bill Wagner

This file was last modified 15:53:28, Saturday November 12, 2011