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fixed a few typos

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dekunukem
2020-10-05 18:55:10 +01:00
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10
buying_nixie_tubes.md
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@@ -20,20 +20,20 @@ NOS tubes are brand new and have never been used before. They are more expensive
Used tubes are desoldered from old instruments. You don't know how long they have been operating and in what condition. They have shorter pins than new tubes, often have cathode poisoning, sometimes even missing digits or pins.
For IN-14 tubes, I recommend buying new ones if you can afford it. If not, used ones work too but you do need to buy a few more than you need in case of duds.
For IN-14 tubes, I recommend buying NOS if you can afford it. If not, used ones work too but you do need to buy a few more in case of duds.
IN-12 tubes are cheap enough that there are no reason to buy used ones at all. Its 2 variants IN-12A and IN-12B are exactly the same except IN-12B has a left decimal point. Both work with exixe12 modules.
IN-12 tubes are cheap enough that there are no reason to buy used ones at all. IN-12 has 2 variants. IN-12A has no decimal points, and IN-12B has a left decimal point. Both will work with exixe12 modules.
## Symbol Tubes
There are a number of special tubes that has symbols inside them instead of numbers, usually for displaying the unit on a measuring equipment. Those tubes are cheaper than usual, but there aren't much you can do with them.
One example is the [IN-19 Nixie tube](http://www.tube-tester.com/sites/nixie/data/IN-19A/in-19a.htm). It is based on IN-14, so you can use it with exixe-14 modules, except all the numbers comes out as symbols instead. You can find a details about it on [in-19_pin_mapping.md](in-19_pin_mapping.md)
One example is the [IN-19 Nixie tube](http://www.tube-tester.com/sites/nixie/data/IN-19A/in-19a.htm). It is based on IN-14, so you can use it with exixe-14 modules, except all the numbers comes out as symbols instead. You can read more about it on [in-19_pin_mapping.md](in-19_pin_mapping.md)
Another example is [IN-15 Nixie tube](http://www.tube-tester.com/sites/nixie/data/in-15a.htm), which is based on IN-12, which is perfect for exixe-12 modules.
Another example is [IN-15 Nixie tube](http://www.tube-tester.com/sites/nixie/data/in-15a.htm), which is based on IN-12. It will work with exixe-12 modules.
## Handling Nixie tubes
They are made of glass, so don't break them. They also have mercury vapor in them, so really don't break them.
They are made of glass, and have mercury vapor inside, so don't break them.
Nixie tubes use a tiny amount of power and don't run hot at all, so it's alright to touch the glass while they are running. You can use rubbing alcohol and paper towel to clean the glass, although the alcohol might take the markings off.

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getting_started.md
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@@ -124,7 +124,7 @@ If your exixe modules are behaving inconsistently, such as flickering or not res
* Double check your connections. Make sure everything shares the same GND, and all the SPI lines are properly connected.
* If you're using a breadboard, be ware of dead holes! It happened to one of my customers, so if you're truly desperate, try moving stuff around, or use a different breadboard.
* If you're using a breadboard, beware of dead holes! It happened to one of my customers, so if you're truly desperate, try moving stuff around, or use a different breadboard.
* Some HV modules can produce significant noise on its output and corrupt SPI signals. Try leaving it out and see if situation improves (by playing with LED colours). You can reduce the noise by putting a ferrite bead along the HV wire, or try using decoupling capacitors. Make sure the voltage rating is adequate!