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Russian 18 segmets VFD Tubes IV-4.

12 pcs.

This never been used, from the old stock.

IV-4 indicator displays any digits. Size 36mm x 19mm. Color green. 


Parameter  
 IV-4
number of segments in sign

18
rated (nominal) voltage of filament, U
2,4
constant (fixed) voltage of grid, U
25
pulse voltage of grid, U
50
filament, consumption of current (nominal), mA
47
constant (fixed) current of grid, mA

10

pulse current of grid, mA

40

constant (fixed) current of anode-segment, mA 0,45
Constancy summary current anodes-segments, mA

4



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