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Registered Member #2893
Joined: Tue Jun 01 2010, 09:25PM
Location: Cali-forn. i. a.
Posts: 2242
Sorry for a double post, but I gots some images to upload. I decided to use the plastic from an LCD TV to make a capacitor for ol' sparky, and when charged to 85kV it holds about 7j. lawl.
Nonetheless, with this thing attached the sparks sound a lot more like a .22, and they are so bright that I really can't look at them. Oh and they also destroy wooden dowels.
I presume it's the shockwaves that destroy the stick. I need more power! ...maybe I'll get some more caps and make it an 8 stage multiplier
Also, managed to capture an image of only one spark. It's quite bright!
Registered Member #2431
Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
Grenadier wrote ...
Patrick wrote ...
Whoa! i would really like to measure that output with an oscope.
I'm not bringing my scope anywhere near that ion waterfall.
Although, maybe it's possible to measure if I put a large loop of wire (~8ft) around the thing and pickup the signal inductively...
I would do it for you.... and yes i was thinking of something that didnt involve direct conduction, while my cheap USB scope and old laptop were in a faraday cage.
Registered Member #193
Joined: Fri Feb 17 2006, 07:04AM
Location: sheffield
Posts: 1022
Just build a 'scope with a tube rated to cope with a deflection voltage of 100KV or so. IIRC acceleration voltages are normally something like 100 times the deflection voltages. Have fun.
Registered Member #2893
Joined: Tue Jun 01 2010, 09:25PM
Location: Cali-forn. i. a.
Posts: 2242
Putting a loop around the CW and scoping it did do something, but any values on the scope were completely unreadable. The screed displayed something akin to uifjierjfierjfreiufjreiufhyediuryrsdkjmdfjrdewskht
iewjfiojdfcioremi6543wdftreswkjfierjfreiufjreiufhy
ediuryrsdkjmdfjrdewskhtiewjfiojdfcioremik had it been a book I was reading.
Registered Member #2431
Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
Grenadier wrote ...
Putting a loop around the CW and scoping it did do something, but any values on the scope were completely unreadable. The screed displayed something akin to uifjierjfierjfreiufjreiufhyediuryrsdkjmdfjrdewskht
iewjfiojdfcioremi6543wdftreswkjfierjfreiufjreiufhy
ediuryrsdkjmdfjrdewskhtiewjfiojdfcioremik had it been a book I was reading.
yeah it would take some "figuring" to get a useful measurement, maybe a 1 inch diameter antenna of twisted pair?
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Mini project: Big CW multiplier
