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Registered Member #3343
Joined: Thu Oct 21 2010, 04:06PM
Location: Toronto
Posts: 311
Paul,,
very good.
If you spend 60 seconds to charged the a 3.3nF cap, you will spend 20seconds to charge charge a 1nF cap.
Now you have to work in the circuit that will discharge the cap into LED.
I may sugest you follow the Antonio experiments. The schematic was posted Wed Apr 22 2015, 12:39AM the spark gap will not drain all voltage from battery
If you spend 60 seconds to charged the a 3.3nF cap, you will spend 20seconds to charge charge a 1nF cap.
Now you have to work in the circuit that will discharge the cap into LED.
I may sugest you follow the Antonio experiments. The schematic was posted Wed Apr 22 2015, 12:39AM the spark gap will not drain all voltage from battery
If you think it will work, I was going to try a 10PF cap, and a 100PF cap. Do those values sound good? If not, what would you suggest? What resistor value would be a good start?
Antonio's design, though very inventive, will not work with my Device. There is no way to place a wire on the needle of the swinger. Any friction (from the wire) will stop the device.
Registered Member #3343
Joined: Thu Oct 21 2010, 04:06PM
Location: Toronto
Posts: 311
Ash,
Yes, you are right. It will place some strain in the pile, BUT just the time for Paul to adjust the spark gap. THEM he will place a 100 megohm between the battery and C1. The gap will disrupt the voltage before the complete battery drain.
Registered Member #3414
Joined: Sun Nov 14 2010, 05:05PM
Location: UK
Posts: 4245
I imagine it will be ok for testing purposes. Apparently some lose accuracy over time. Maybe a 'name brand' with a datasheet, etc. would be better for 'production models'. Others here probably know more than me about this.
I imagine it will be ok for testing purposes. Apparently some lose accuracy over time. Maybe a 'name brand' with a datasheet, etc. would be better for 'production models'. Others here probably know more than me about this.
I saw this from Mouser. Does it look OK to you? Even has a data sheet. If it's good, I will order tomorrow.
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Light LED with 4 nanoamps
