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Correct...... I looked up a NE-2 datasheet, and the actual firing voltage is 135 volts DC.
Ok! Thanks for the help!Correction: 135 volt are for the high intensity lamps. NE-2H
For standard NE-2 lamps, the voltage is 90 volt DC
Uhh, I don't really know what you mean here, but I already have a plan...If the discharge can be leisurely (which is usually the case)
and you don't feel a need to burn a whole lot of power in
that lamp string, consider a LED with a large value series
resistor.
Ok! Thanks! I don't really need a new way to discharge it, considering my entire use for it is making a railgun..You can charge a capacitor bank upto 300-600V very easily in the following steps:
1. Use a diode to rectify the line voltage. If the input in 220VAC, the output will be above 300V. You will need a voltage doubler to get 600V. This is the DC voltage to be used to charge the capacitor bank.
2. Connect the capacitor bank to this voltage in series with a filament lamp. When the capacitor is getting charged, the lamp will light and when the charging is over, the lamp will go out.
3. You can also use the same lamp to discharge the capacitor bank. Just short the ends of the capacitor via a filament lamp.
4. For 600V use, you may perhaps need (depends on the capacity of the capacitor bank) two filament lamps in series. The wattage of the lamps is not critical but the voltage is.
my entire use for it is making a railgun..
By the way, what is a railgun? I know what is a rail and what is a gun, but the combination is ...
Agree with the above ^^^, a good reliable indicator would be an NE2 neon and a 1 meg high voltage (1 or 2 watt) resistor.
If its alight, its very likely that dangerous voltages are still present.
It does not need to be fancy, just rock solid reliable.
Another way might be a cheap and nasty analog voltmeter permanently connected.
Or maybe both.............