Shorting a tuned L/C circuit

[telecom]

Hi telecom,


are you also user joellagace, first post of this topic?


Regarding your spark,crystal radio and 15W bulb. Could you make a short video. Hard to believe a crystal radio can make a bulb glow.


Thanks for sharing


Luc

Hi,
sorry, I'm not the guy, but enclosing a photo of what's left of the set up:
you can see a spark gap, the ignition coil and the tuning coil from the radio, also the cap.
I removed the actual light bulb holder and you can see Arduino on its spot, for another project.
Regards

[gotoluc]

Thanks for the pic


Can you get it working again and do some pin and pout measurements?


Thanks for sharing


Luc

[telecom]

Thanks for the pic


Can you get it working again and do some pin and pout measurements?


Thanks for sharing


Luc

I was thinking about it, but again, how to deal with the telephone problems in the building?
I'm still wondering how far the emf field from the sparks will penetrate - never expected for it to be
that effective!
If you wish, I will attach the bulb holder and ship it over to you for testing.
It actually works very reliably.
Alex

[gotoluc]

I was thinking about it, but again, how to deal with the telephone problems in the building?
I'm still wondering how far the emf field from the sparks will penetrate - never expected for it to be
that effective!
If you wish, I will attach the bulb holder and ship it over to you for testing.
It actually works very reliably.
Alex

Hi Alex,
that's a kind offer to be ready to ship it out.
Would it be complete or would it need some components added to make it work?


Thanks for the offer


Luc

[telecom]

Hi Luc,
you will need something to drive the ignition coil - like an interrupter or similar.
I used a 555 based input, if you don't have one, I can try looking for it here as well.
Regards
Alex