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Forums
4hv.org :: Forums :: Tesla Coils
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Making an ultra high frequency Tesla coil...

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Perezx
Fri Jan 22 2016, 02:35AM
Perezx Registered Member #54263 Joined: Thu Jan 15 2015, 09:54AM
Location: Perth
Posts: 35
Found a diagram of HF SSTC. This was working at approx. 10 MHZ. However, it is pretty hard to tune. VTTCs are way better :)

1453430115 54263 FT174844 F8qvr9sa0dc
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hen918
Fri Jan 22 2016, 02:05PM
hen918 Registered Member #11591 Joined: Wed Mar 20 2013, 08:20PM
Location: UK
Posts: 556
Perezx wrote ...

Found a diagram of HF SSTC. This was working at approx. 10 MHZ. However, it is pretty hard to tune. VTTCs are way better :)

1453430115 54263 FT174844 F8qvr9sa0dc


Any reason why the "MOSFET" is labelled VT1? cheesey
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Inducktion
Sat Jan 23 2016, 09:06AM
Inducktion Registered Member #3637 Joined: Fri Jan 21 2011, 11:07PM
Location: Buffalo, NY
Posts: 1068
i got the tube today and i'm seriously wondering how it can handle 125 watts of plate dissipation..... i'll still certainly try it out though.
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Perezx
Mon Jan 25 2016, 04:00AM
Perezx Registered Member #54263 Joined: Thu Jan 15 2015, 09:54AM
Location: Perth
Posts: 35
hen918 wrote ...



Any reason why the "MOSFET" is labelled VT1? cheesey
Any problems, officer? :)

Forgot to advise: secondary of such high frequency TCs should be made heatproof. Best way is to wind them on glass/ceramic
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Inducktion
Mon Jan 25 2016, 05:30AM
Inducktion Registered Member #3637 Joined: Fri Jan 21 2011, 11:07PM
Location: Buffalo, NY
Posts: 1068
Ok....so i did more research and there's no way in hell this tube is an 803. It's about the same size as an 811A, and looks to be an 807 instead.

Edit;

I got a refund but i still get to keep the tube, lol. Weird.
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