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THYRATRON VALVE CHARACTERISTICS APPARATUS USING THYRATRON VALVE 2D21 – GUPTA BRAND 200205

Objective : To draw VI Characteristics of Thyratron valve at various Grid Voltage.
Features : Instrument comprises of Two DC Regulated Power Supplies 0-5VDC/150mA, 0-15VDC/150 mA, AC Power Supply 6.3 VAC/1Amp, three round meters for voltage & current measurement, valve diagram is Printed on Front Panel, connections of Supplies & Valve brought out at 4 mm Sockets

TICKER TAPE TIMER AC GUPTA BRAND 8006142

To provide dots on tape at 1/50 or 1/60 second intervals, equal to the frequency of the mains supply. Operates on12 V a.c. It has an electromagnet & a spring loaded armature which vibrates above a support table. Paper tape, drawn through guides on the table is struck by a dotting screw, carried on the armature. A peg on the table is provided to allow full use of carbon paper disc. Fitted on base.