06-01-2018, 11:38 AM
Hmmm. I thought I had posted a reply to this, but I guess I for got to actually post it. Sigh.
In any event, I guess what I would do in your case is try to build a bug. If you've had yours apart, you probably observed that it only has two parts (conjecture on my part): a lamp and a light-sensitive resistor. You can find the resistors at digikey:
https://www.digikey.com/products/en/sens...-cells/540
And the lamp, well, I don't know which one, but that link I shared in the previous post suggests that it might be an NE-2.
It seems like if you were to encase the lamp and the resistor in clear epoxy and cover the whole thing in shrink-wrap, you'd be in the ball-park. The only real challenge is choosing the right lamp and the right resistor.
Having looked at the schematic, if I've done the math right a light-sensitive resistor of about 1 meg (I think I saw that it might be a 1.3 meg) would work. The trick would be to get the lamp right. Too bright and it's going to be choppy, too weak and it will give a weak trem. And, of course, it needs to produce the right wavelength.
Honestly, I'm a bit more puzzled about the lamp part of the circuit. The word "neon" has been used, but I think the lamp has to smoothly transition from dark to bright, and that doesn't sound like neon to me.
Experimentation would be key. It just comes down to how into the project you are.
In any event, I guess what I would do in your case is try to build a bug. If you've had yours apart, you probably observed that it only has two parts (conjecture on my part): a lamp and a light-sensitive resistor. You can find the resistors at digikey:
https://www.digikey.com/products/en/sens...-cells/540
And the lamp, well, I don't know which one, but that link I shared in the previous post suggests that it might be an NE-2.
It seems like if you were to encase the lamp and the resistor in clear epoxy and cover the whole thing in shrink-wrap, you'd be in the ball-park. The only real challenge is choosing the right lamp and the right resistor.
Having looked at the schematic, if I've done the math right a light-sensitive resistor of about 1 meg (I think I saw that it might be a 1.3 meg) would work. The trick would be to get the lamp right. Too bright and it's going to be choppy, too weak and it will give a weak trem. And, of course, it needs to produce the right wavelength.
Honestly, I'm a bit more puzzled about the lamp part of the circuit. The word "neon" has been used, but I think the lamp has to smoothly transition from dark to bright, and that doesn't sound like neon to me.
Experimentation would be key. It just comes down to how into the project you are.