Voltage Tripler with NST

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Caleb Winder
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Voltage Tripler with NST

Post by Caleb Winder » Fri Jul 04, 2014 4:23 pm

Greetings,

I have been searching for a cost effective method for powering my fusor. After researching the forums, and looking over ebay, I was curious to see if the combination of a 12kv 30mA NST with a voltage tripler from a CRT monitor would be a sufficient power supply. My questions about this are: 1. Could the voltage tripler handle the current? 2. What effects would the tripler have on the NST's 30mA? 3. Are there any other issues with this supply?

Here are the links to the items:

NST - http://www.ebay.com/itm/NEON-SIGN-TRANS ... 339143b7fb

Voltage Tripler - http://www.ebay.com/itm/ECG-538-High-Vo ... 43c4837a0c

I apologize for asking to be spoon fed information, I just couldn't find any information on this set-up.

Thanks,

Caleb

P.S. If the above supply isn't sufficient, I'm assuming this is suitable?

http://www.ebay.com/itm/Spellman-High-V ... RTM1562572

John Futter
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Re: Voltage Tripler with NST

Post by John Futter » Fri Jul 04, 2014 7:13 pm

Caleb
Its not a bad question but!
The CRT tripler is run at around 15kHz to give 2-5 mA output at 20 -30kV

so the current you could expect running this tripler at 60Hz would be around 50uA a 25th of the 15kHz drive frequency
secondly the tripler built using 12 to 18kV PIV diodes and the increase of voltage from your NST is likely to destroy the diodes

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Richard Hull
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Re: Voltage Tripler with NST

Post by Richard Hull » Sat Jul 05, 2014 5:18 am

Adding to John's admonition. 100 % of the potted triplers I have seen are positive HV output. No good even it it handled 2 amps.

Richard Hull
Progress may have been a good thing once, but it just went on too long. - Yogi Berra
Fusion is the energy of the future....and it always will be
Retired now...Doing only what I want and not what I should...every day is a saturday.

Caleb Winder
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Re: Voltage Tripler with NST

Post by Caleb Winder » Sat Jul 05, 2014 10:02 pm

Alright, thank you for the responses, I was just trying to seek out an inexpensive power supply. Do you know if the second supply I posted would be any good?

Caleb

John Futter
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Re: Voltage Tripler with NST

Post by John Futter » Sun Jul 06, 2014 3:02 am

Caleb
You need to do your own looking not keep asking questions
This is a positive output supply you would need to modify it to go negative --not a trivial task

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