Monroe Ii 620 NIXIE tube calculator!!
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Uploader Comments (CassetteMaster)
All Comments (65)
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the knob with 1 to 6 probably sets the decimal point and the switch underneath it is for choosing in which direction it rounds like round up from 5 or round to even number
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You lucky bastard!!
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I think the dial controls the number of decimal places
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I LOVE NIXIE TUBES :DDDDDDDDDDDDDD
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i love those nixie tube displays. each digital was a seperate anode in a shape of the digit and was in a different plane.so as the numbers changed they would move towards you and back from you.
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Wow. There must have been a ton of dust on that thing.
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I bought one of these for $10 at a junk store. These were made around 1972. Mine has 16 digits, plus commas to separate thousands lit by neon bulbs. Mine also has neon lights with small, clear, beehive-shaped lenses over the keys for Memory 1, Memory 2, multiply, and divide, which light up when those keys are pressed. The "LI" on the front stands for Litton, which I believed purchased the Monroe company around that time.
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@CassetteMaster lucky. i would have been very happy to get one of those for $8. they're really expensive on ebay
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this is awesome. how did you get it for?
ubercoolman7 11 months ago
@ubercoolman7 I think 8 dollars.
CassetteMaster 11 months ago
and how did you get it for so cheap.
rottenapples3 2 years ago
It was there at an estate sale.
CassetteMaster 2 years ago
@CassetteMaster I see the calculator is plugged to the mains! These tubes require a lot of voltage. But are there any nixie tubes which run on low voltages? I've seen nixie tubes used in a watch operating with a 3 v battery, how is that possible?
ignatei 8 months ago
@ignatei Assuming they all need a high voltage, the 3V watch probably has a high voltage generator inside.
CassetteMaster 8 months ago