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4hv.org :: Forums :: High Voltage
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What is the frequency output (Hz) for this NSTs secondary?

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ScottH
Mon Apr 24 2017, 04:47PM
ScottH Registered Member #61373 Joined: Sat Dec 17 2016, 01:45PM
Location: San Antonio, TX
Posts: 87
I looked for the specs online, but no luck. The smaller newer NSTs like this use smaller parts, and put out HF current. This model should use a switch mode power supply, 3kv @30ma. Link2
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GrantX
Tue Apr 25 2017, 08:27AM
GrantX Registered Member #4074 Joined: Mon Aug 29 2011, 06:58AM
Location: Australia
Posts: 335
I'm not sure about that specific unit, but I have a furnace ignition transformer and electronic NST that both operate around 25kHz
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Kolas
Thu May 11 2017, 10:01PM
Kolas Registered Member #102 Joined: Thu Feb 09 2006, 08:15PM
Location: Raleigh, NC
Posts: 169
It should be possible (likely with great difficulty) to measure the output frequency. this would probably involve the use of a very large array of resistors and an oscilloscope.

Suffice to say, if you cannot hear the arc, its 20+ khz.
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