Recently I have acquired some vintage numitron tubes (new old stock)
. I have looked everywhere on how to operate them, but I still have not found how to do so. The type of tube's that I have got are ??-6 (IV-6) the configuration is similar to an eight segment LED. There are 12 wires, one of them is considerably shorter than the others and from what I can see it is connected to the white block of something, which holds the actual display down. I can read Russian so the data sheet's are not a problem to me
. I just do not know how to operate such a component. Can anybody please advise me on how to operate it, and how to connect everything up? Here is a link to the data sheet if you require one:
http://tec.org.ru/board/ehlekrovakuumnye_pribory/indiuvtornye_pribory/iv_6/185-1-0-1334
I think they may be similar to the ones used in AdaFruit's Ice Tube clock. Take a look at the information there and see if it sheds any light on the situation.
Numitrons have an incandescent filament for each segment, but from the datasheet and IanB's video above it seems to be a regular VFD.
Filament voltage 1.2v @ 50mA, plate voltage 27V continuous 60V pulsed.
Soviet IV-6 (??-6) is a regular VFD. (In fact, IV-** denotes an VFD, "IV" stands for Russian "Indicator Vacuumnyi" in Russian, no translation is needed, I think
). However there are two or three models that have IV-** marking but are no VFDs, nobody knows why.
Just like any other VFD, IV-6 is operated just like any vacuum triode. Filament voltage is 1.2 V rated, voltages between 1.0 and 1.35 V are permitted. Pins 7 and 8 are filament and directly heated cathode. A positive voltage should be appliet to the grid (pin 9) and anodes (all other pins). Pin 12 is cut and used for a key. Each anode corresponds to a segment, and manipuulating grid voltage can be used for multiplexing.
Rated anode voltage is 27 V (25 to 30 V) and 0.5 mA constant current. But it works even at 12V or less so you may use regular 40xx series ICs with them.
Simpliest usage: apply 1.2 V between pins 7 and 8, connect pin 8 to ground. Apply positive voltage 12...27V to pin 9 and to one or more other pins. You may connect pins 1-6, 9, 10 and 11 directly to outputs of 40xx logic.
Soviet IV-6 (??-6) is a regular VFD. (In fact, IV-** denotes an VFD, "IV" stands for Russian "Indicator Vacuumnyi" in Russian, no translation is needed, I think ). However there are two or three models that have IV-** marking but are no VFDs, nobody knows why.
Just like any other VFD, IV-6 is operated just like any vacuum triode. Filament voltage is 1.2 V rated, voltages between 1.0 and 1.35 V are permitted. Pins 7 and 8 are filament and directly heated cathode. A positive voltage should be appliet to the grid (pin 9) and anodes (all other pins). Pin 12 is cut and used for a key. Each anode corresponds to a segment, and manipuulating grid voltage can be used for multiplexing.
Rated anode voltage is 27 V (25 to 30 V) and 0.5 mA constant current. But it works even at 12V or less so you may use regular 40xx series ICs with them.
Simpliest usage: apply 1.2 V between pins 7 and 8, connect pin 8 to ground. Apply positive voltage 12...27V to pin 9 and to one or more other pins. You may connect pins 1-6, 9, 10 and 11 directly to outputs of 40xx logic.
Can you please tell me how to identify the pins?
Can you please tell me how to identify the pins?
Did you look at the page you linked to?
All glass tubes, valves, older ICs in round metal cases and other round devices almost always have the same pin numbering: clockwise if seen from bottom (from pin side). There is some space (cut pin) between pin 1 and pin 11. Other devices may have no such space but they always have some other key, i.e. a color dot near pin 1.
I have just bought 12 IV-6 tubes and 12 IV-17 tubes. The IV-6 ones are 7 segment plus decimal point and the IV-17's are star burst alphanumeric displays. I am going to make a two level clock with the 7 segments on the top, six of them displaying the time and underneath 6 of the star burst to display email inbox count, weather etc. I got enough to make two of them, one for my shack and one for my wife's desk
me to vdf IV6 how can i use them or 1 with an UNO just as a clock with the DS1307 TRC?? just 1 tube so how to conect it? there is a build online but it is the IV9 low power nixie build as the 7 segment display, so the tube works as that, but when i ordered the tubes the builder told me he made a mistake and that the tube was a IV9 the f m.... yep.
so how can i still use it in that config?