New iv-4 russian nixie vfd tubes lot of 18

What is for sale: New iv-4 russian nixie vfd tubes lot of 18

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Russian Nixie VFD Tubes IV-4. Lot of 18. This never been used, from the old stock. IV-4 indicator displays any digits. Size 36mm x 19mm
rated (nominal) voltage of filament, U
constant (fixed) voltage of grid, U
filament, consumption of current (nominal), mA
constant (fixed) current of grid, mA
constant (fixed) current of anode-segment, mA
Constancy summary current anodes-segments, mA
Data sheets in russian see here and here