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Re: Nst
Original poster: "colin heath" <colin.heath4@xxxxxxxxxxxxx>
I would imagine if the centre tapped ground were used for middle of 2
rails then a multiplier could be built to be bipolar. say +50kv and
-50kv for example. only problem with using 50Hz supply is you need
big caps to get the energy required along with avoiding voltage sag.
I have used an insectocutor(bug zapper) transformer at 4kv and 8mA
and although this is 50Hz its also got one side of secondary grounded
as with a mot. This with 3nF caps and mo oven diodes gave a good 20KV
no problem to charge a 10 stage Marx bank with 2.2nF caps each stage
and would fire every couple of seconds.
To use this set-up for a tesla coil is tough although with 2 mots
anti phase primary. and a doubler you can get 12KV offload and runs a
coil lovely upto 4' output no probs at all.
Hope my muttering on helps you somehow as this groups been nothing
but helpful to me
Cheers
Colin Heath
----- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Saturday, January 21, 2006 8:21 PM
Subject: Re: Nst
Original poster: Ed Phillips <evp@xxxxxxxxxxx>
Tesla list wrote:
Original poster: "D.C. Cox" <resonance@xxxxxxxxxx>
Yes, but it takes twice as many components. You end up with one hot
and a ground.
Dr. Resonance
Hey gang
I read that you can build a voltage multiplyer for MOT'S
but can one be built for NST'S?
Gates
Haven't built one but I have simulated them with Electronics Work
Bench and there are potentialovervoltage problems due to resonance
of the coupling capacitors with the leakage reactance of the
transformer. Were I to try it I'd use a "push-pull" configuration
with separate half-wave multipliers for each terminal of the NST,
with the case ground as the power ground. Half the voltage per side
but think it would work better.
Ed