IV-21 IV21 ИВ-21 mini IV-18 indicator VFD clock tube vintage NOS RARE 10pcs

Description

IV-21 IV21 ИВ-21 mini IV-18 indicator VFD clock tube NOS RARE 10pcs
New tubes from old stock. Same date
Vacuum Fluorescent Display (VFD).
IV-21 is intended for formation of digits (0 ... 9)  and points for each digit.
Total 8 digits, each consisting of 7 segments and a dot.
Has a service category to display more information.
Used in the equipment of broad application.
Color of a luminescence - green.
Housing - glass.
Weight is no more than 13 g.
Key technical parameters of the glow discharge indicator IV-21:
luminescence brightness for one digit number, not less than - 300 cd/m2 (≤300 cd/m2);
the service category - 175 cd/m2;
filament voltage: 2.4 V (min=2.0 V, max=2.65 V);
filament current: 35 mA (min=30 mA, max=40 mA);
total current anodes-segments pulse: 12 mA (min=4 mA, max=20 mA);
voltage anodes-segments: not more than 50 V (≤50 V);
current anode-segment pulse: no more than 1 mA (≤1 mA);
voltage grid pulse: 27 V (max=50 V);
grid current for one digit pulse: 2 uA (min=1 uA, max=3 uA);
Ambient temperature: -45...+70 °С.
Lot for 10 pcs
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NOTE:
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Please check with your country's customs office to determine what these additional costs will be prior to bidding buying.
Shipping
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2. Items will be usually shipped within 2 business days on payment received.
3. We use UkrPoshta (Ukranian Post) for all our International  deliveries. Once your package passes through customs it will be delivered by your local post office.
4. The usual time for a parcel to arrive at its address is 24 business  days, but usually it arrives much earlier. Sometimes it can take longer up to 8 weeks.
Delivery time lasts approx.
1) United States & Canada up to 20 business days.
2) Europe: up to 21-24 (except Germany and Italy, delivery time can take up to 1 month)
3) Other countries: not more than 30 business days.
Asia & Australia: the delivery can take up to 2 months, but  usually it arrives much earlier.
We appreciate your patience if you haven't received items in 30  days may need more patience by reason of the local delivery system  and/or customs. If you are concerned in any way, please feel free to  contact us via ebay message instead of leaving negative/neutral  feedback or opening a dispute. We will make every effort to fix any problem.
Returns
We guarantee you complete satisfaction with all our high quality products.
If you receive an item you did not order, or if an item you ordered is received damaged or defective, we will refund you the price you paid for it or replace it with identical one.
The item should come to the above address within 30 days after you received it.
After 30 days we will no longer be responsible and the item  won't be taken back.
Item for returning must have the original tags and packing, otherwise it won't be accepted.