NE2H for one, it's a high brightness one, then any green neon will work for the other.? You could, of course, simply use two of the same lamp and just label them.
This same kind of circuit, with different resistors, would work with LEDS, but I'm not sure about the current, since neons can light with less current, IIRC.
Harvey
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On 5/10/2024 10:00 PM, cheater cheater wrote:
great stuff, thanks Harvey. any idea what sort of neon lamps to get?
are there standard model numbers?
On Fri, May 10, 2024 at 5:05?PM Harvey White via groups.io
<madyn@...> wrote:
Photo in the photo album, look under neons.
Harvey
On 5/10/2024 10:30 AM, cheater cheater wrote:
Harvey I'll need a drawing of that, can you take a photo and post it
to the list? Or if that doesn't work, to imgur? Thanks
On Thu, May 9, 2024 at 6:10?AM Harvey White via groups.io
<madyn@...> wrote:
If you're looking for direction, you'll need two of them
I'd be tempted to use a resistor and neon with a one KV diode in series
with the neon. The neon will limit the maximum voltage to about 100
volts or so.
so: resistor connected to a neon with a series diode, connecting both
across each other, and the diodes reversed.
Might be a good idea.
Harvey
On 5/8/2024 11:00 PM, stevenhorii wrote:
Could you use a small (NE-2) neon bulb for this? I recall holding the lead
of one and shuffling across a carpet. I got the bulb to flash.
Steve H.
On Wed, May 8, 2024 at 21:03 Ed Breya via groups.io <edbreya=
[email protected]> wrote:
The LEDs would protect each other from reverse breakdown. They should be
stout enough to take the forward hit and flash. If not, you can put some C
across them or R in series to soften things up (which would also stretch
the pulse for better visibility). Try it and see.
What's really needed to assess part durability is a power rating and an
energy rating. You won't find energy rating for LEDs, so have to
experiment. If you study the HBM you'll have an idea of the energy
available from your own spark. Unfortunately, I don't think there's a spec
for SCM, but you can be sure it would be quite a bit more C, and nearly
zero R. Good luck.
Ed
