This one is really extra super mega rarest tube!
Really collectibles stuff.
And really a very difficult test for someone who decides to assemble something on this tube.
ITM1A - unic thyratrone dot display (4 x 4 green dots ).
Condition:
New Old Stock (NOS).
QTY - 2 pcs in SET (Same production date).
Spec:
Displayed digits: 16 dots ( 4x4 square ).
1st Anode DC Voltage (or impulse voltage), V - 48...53
2nd Anode DC Voltage (or impulse voltage), V - 110...120
Subcathode negative DC voltage, V - -(260…240)
1st and 2nd grids voltage required for the occurrence of a discharge, not more than, V - 0,7
Unlocking static voltage of the 1st and 2nd grids, not more than, V - 10
Unlocking impulse voltage of the first and second grids, not more than, V - 0,8
The current of the electrodes of the display elements of the ITM1A indicator, μA:
- In the absence of secondary anode current:
1st and 2nd grids - 30
1st Anode - 60
2nd Anode - non
Subcathode - -30
- In the presence of secondary anode current:
1st grid - -15
2nd grid - -30
1st Anode - -20
2nd Anode - 150
Subcathode - -60
About store.
This store is a reincarnation of a shop based in Russia with a long and very good histo
ry. Almost 200 positive feedback, 100% rating and more than 5 years of work. All this was changed in one moment... However, life is still going and I am with my friend from the US opening a new shop with stock in the US.
So... I am sure that it will be good for my old and new customers, because now we can ship faster and provide additional services such as preorders, reserves from transit etc.
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From the owner.
Thank you for visiting my store.
If you are interested in more quantity than available in the current listing, feel free to ask me (eBay rules in some countries forbid displaying more than 9 pcs).
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Sincerely, M.S.