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Re: LF: High Voltage tester

from [DK7FC] [Permanent Link][Original]
To: [email protected]
Subject: Re: LF: High Voltage tester
From: DK7FC <[email protected]>
Date: Tue, 23 May 2017 12:51:39 +0200
In-reply-to: <579355A36AEE9D4FA555C45D556003AB8FE7FC82@servigilant.vigilant.local>
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Hi Luis,

I would recommend a high voltage probe, like that one https://www.amazon.de/Testec-120329-HVP-15HF-HOCHSPANNUNGSTASTKOPF/dp/B003A60CCM/ref=sr_1_3?ie=UTF8&qid=1495536091&sr=8-3&keywords=hochspannungstastkopf
If you want to save the money, you could build your own, with Cs or Rs in series, for example i used 20x 1 MOhm in series to measure up to 10 kV rms. You need to calibrate it of course. It works for these low sinuousouildal frequencies below 1 MHz...

73, Stefan

Am 23.05.2017 12:30, schrieb VIGILANT Luis Fernández:

Hi all

 

I have been looking for a high voltage tester. The idea is to use it to measure voltage at the MF coil

and also playing with transformers for VLF Tx as Stefan explained few days ago

 

I found professional stuff and also cheap electric fence testers. Some models based on neons and others

even digital and up to 10kV. For example this one

 

http://www.ebay.es/itm/Digital-Electric-Fence-Tester-High-voltage-Tester-300-9900V-Handheld-US-Ship-/252161204946?hash=item3ab5faa2d2:g:e7oAAOSwIgNXrTq7

 

Would it work for our purpose at MF frequencies ?

 

73 de Luis

EA5DOM

 

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