Lot for 1 pcs IN-12A Glow discharge indicators IN-12A, IN-12B for visual indication of electrical signals in radio engineering devices of stationary and mobile equipment for general and special purposes The height of the numbers is 18 mm. Indication is made through the balloon dome. The mass of the device is 20 g. Power supply voltage, V not less 200 no more - Discharge initiation voltage, V - no more 170 Discharge maintenance voltage, V - no more 150 Indication current for digits, mA - no more 2.5 Indication current for comma, mA - no more 0.3 Continuous operating current for digits, mA not less 2 no more 3.5 Constant operating current for comma, mA not less 0.3 no more 0.7 Pulse operating current for digits, mA not less 1 no more 2 Pulse operating current for comma, mA not less 0.15 no more 0.2 Luminescence brightness of cathodes, cd / m2 not less 100 - Viewing angle, degrees not less ± 30 - OPERATING INSTRUCTIONS: • To exclude the influence of storage conditions on the parameters of the indicators, it is recommended to train the indicators with currents of 1-2 mA (pulsating) or 2.5-3 mA (constant) for a period of at least 1 minute for each cathode before establishing the operating mode. • It is recommended to supply indicators with a half-wave rectified mains voltage without a filter. In this case, the value of the average current for each of the cathodes should not exceed 2mA. • It is allowed to operate indicators on one cathode for 1000 hours in durability mode. • Recommended value of supply voltage when operating on direct current - 250 V. This significantly reduces the delay time of the discharge. • Soldering of pins is allowed at a distance of at least 4 mm from the base of the cylinder. • During the operation of the indicators, it is allowed to have luminous areas on the traverses, as well as cathode areas not covered with glow, no more than 2 mm in size, which do not interfere with the visual indication of numbers. Combined shipping is accepted Contact me via message for any question Shipping time - 10-30 days Item will be shipped immediately after payment Thing will be securely packed Delivery from Ukraine by postal service Thanks for looking!