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Re: HV indicator

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https://news.novabbs.org/tech/article-flat.php?id=129717&group=sci.electronics.design#129717

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NNTP-Posting-Date: Tue, 26 Sep 2023 18:31:11 +0000
From: boB@K7IQ.com (boB)
Newsgroups: sci.electronics.design
Subject: Re: HV indicator
Date: Tue, 26 Sep 2023 11:31:11 -0700
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by: boB - Tue, 26 Sep 2023 18:31 UTC

On Sun, 24 Sep 2023 14:00:48 -0700 (PDT), Fred Bloggs
<bloggs.fredbloggs.fred@gmail.com> wrote:

>On Sunday, September 24, 2023 at 4:17:02?PM UTC-4, whit3rd wrote:
>> On Sunday, September 24, 2023 at 5:40:16?AM UTC-7, Fred Bloggs wrote:
>>
>> > Some multimeters, in particular EXTECH, have a Non-Contact Voltage (NCV) Detector in the form of an ionizing gas bulb that lights for VAC in the range 100-600 Volts AC.
>> >
>> > These are available in the big box stores off the shelf / display hook.
>> >
>> > https://www.flir.com/products/ex330/
>> My Greenlee GT-11 non contact detector is a capacitive pickup and lights an LED; it
>> only senses AC.
>
>Greenlee? You don't mess around, that's one of the best out there.

How about a neon lamp, a resistor and a capacitor ?

It will flash faster at higher voltage. Double the voltage should be
easy-ish to distinguish from 1/2 that voltage.

boB

Beeping is cute, if you are in the office ;) -- Alan Cox

tech / sci.electronics.design / Re: HV indicator

tech / sci.electronics.design / Re: HV indicator