I used
Online OCR then google translate. I should do it for my IV-1? VFD's too.
Linear indicator of a glow discharge for operation as a visual indicator of electrical signals and control measuring devices, in control systems of technological processes and other equipment.
Indication is made on the height of the glowing column through the side surface of the cylinder. The decoration is glass. Weight 15 g.
Electrode leads: 1-anode, 2 - cathode (central terminal).
Basic data:
Brightness of light >40 cd/m^2
Viewing angle >50 °
Power supply voltage >250V
The discharge voltage is <140V
Voltage maintaining the discharge <70V
Current of <12 mA
Length of luminous pillar 20-97 mm
Uncertainty error (reduced) <4%
Working hours >2000 h
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Fig. 3-12. Schematics for using ИН-9 (IN-9).
A is direct inclusion; 6 - switching on via a transformer.
The device and the principle of operation of the device type IN-9:
Structurally, it is a round glass flask with a long cylindrical anode and cathode.
The cathode is located inside the anode. Along its axis, which is made of molybdenum wire.
The glow is observed through the slots in the anode, which are made of the whole length of the anode.
In such instruments, the change in the length of the luminescence, depending on the passing current, occurs linearly, so they are called linear.
In voltmeters of alternating voltage, ignition of the discharge at the beginning of the cathode is achieved by approaching the anode and the cathode in the end part of the device.
The number of leads for the IN-9 device is only two (anode and cathode).