Re: [neonixie-l] Re: How dangerous is 150V - 170V DC?

2019-10-28 Thread John Smout 
I am 67 and I regularly get shocks from various nixie supplies I forget 
to care about. I think it keeps me young, but what do I know? My wife 
takes a dimmer view of getting shocks from my work bench. A good belt 
from her is far worse though - have you seen her right-hander?


John S


On 28/10/2019 17:10, gregebert wrote:
Given my age (I'm approaching 60), I'm not taking any chances getting 
shocked; one wrong zap and my heart is toasted. I usually take more 
precautions than reasonable, and that's probably why I dont recall 
ever being shocked working on a project. It's the everyday things 
(lawnmower, fish tank)  that got me  zapped a few times over the years.



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Re: [neonixie-l] Re: How dangerous is 150V - 170V DC?

2019-03-10 Thread 'Grahame' via neonixie-l 

Try this one ... about 45 seconds in...

https://www.youtube.com/watch?v=iDJp2tHmEQo

On 10/03/2019 15:16, Richard Arndt wrote:
... guy Gottfried involuntarily jumping off his seat while voluntarily 
subjecting himself to significant shocks !!!  No thank you :-)


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Re: [neonixie-l] Re: How dangerous is 150V - 170V DC?

2019-03-10 Thread Richard Arndt 
Thank you John for that very interesting read.  

I have explored technical papers to gain some understanding of what is 
dangerous, since I was doing contract work developing a Galvanic Vestibular 
Stimulator.  Of course, I was the first guinea pig to test my own device, 
but it was nothing like this guy Gottfried involuntarily jumping off his 
seat while voluntarily subjecting himself to significant shocks !!!  No 
thank you :-)

Rich

On Saturday, March 9, 2019 at 6:20:15 AM UTC-5, johnk wrote:
>
> I was involved in the testing of Residual Current Detector designs in the 
> ‘90s. I know that you are discussing the DC at present but you guys also 
> play with AC.
>
> When it comes to a shock the path of the current is very important.
>
> Research the topic a bit. AC and DC.  It is surprisingly complex.
>
>  
>
> While you are at it look up what this guy did…
>
> https://ethw.org/Oral-History:Gottfried_Biegelmeier
>
>  
>
> From the RCD era I have his papers somewhere AND a video of him him a 
> bathtub electrocuting himself –well, shocking anyway for you purists.
>
> I wonder if it is on youtube or the web somewhere?
>
>  
>
> HMM, start with this one.
>
> https://www.youtube.com/watch?v=08r27LnLHCM
>
>  
>
>  
>
> And because we are discussing shocks… I must take this chance [as always] 
> to say that Edison was a lout and should have been electrocuted.
>
> For the elephant, let alone the rest of his atrocities.
>
>  
>
>  
>
> John K
>
> Australia
>
> *From:* neoni...@googlegroups.com  [mailto:
> neoni...@googlegroups.com ] *On Behalf Of *Bill Notfaded
> *Sent:* Saturday, 9 March 2019 01:23
> *To:* neonixie-l
> *Subject:* [neonixie-l] Re: How dangerous is 150V - 170V DC?
>
>  
>
> I think Eric aka Tidak hit the nail on the head... it's not so much the 
> voltage as the amperage that kills you.  I=V/R  You can plug the variables 
> into ohm's law and figure it out pretty easily.  With high resistance even 
> 170V doesn't equal many amps.  I think it's all about potentially how many 
> electrons can flow (voltage) and how easily they are flowing (resistance).
>
> On Friday, February 1, 2019 at 1:19:42 AM UTC-7, Thomas Kummer wrote:
>
> I’m very reckless when it comes to my Nixie projects. I’ve shocked myself 
> with 150 - 170V DC more times than I care to admit, and every time I’ve 
> done it, the shock isn’t that bad. However, every time I’ve done it, my 
> hands have been dry, and there’s been a series resistor somewhere in the 
> circuit. I’ve been tazed before, and the Nixie 150-170V is no where near as 
> bad. Is it the resistors that have saved me, and I should thank my lucky 
> stars that they were there? Or, is it the fact that 150-170V DC isn’t as 
> dangerous as everyone makes it out to be? I mean either way I know I should 
> be more careful. I guess what I’m getting at is what are the chances of me 
> accidentally doing any significant  harm to myself from a Nixie project? 
>
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RE: [neonixie-l] Re: How dangerous is 150V - 170V DC?

2019-03-09 Thread johnk 
I was involved in the testing of Residual Current Detector designs in the ‘90s. 
I know that you are discussing the DC at present but you guys also play with AC.

When it comes to a shock the path of the current is very important.

Research the topic a bit. AC and DC.  It is surprisingly complex.

 

While you are at it look up what this guy did…

https://ethw.org/Oral-History:Gottfried_Biegelmeier

 

>From the RCD era I have his papers somewhere AND a video of him him a bathtub 
>electrocuting himself –well, shocking anyway for you purists.

I wonder if it is on youtube or the web somewhere?

 

HMM, start with this one.

  
https://www.youtube.com/watch?v=08r27LnLHCM

 

 

And because we are discussing shocks… I must take this chance [as always] to 
say that Edison was a lout and should have been electrocuted.

For the elephant, let alone the rest of his atrocities.

 

 

John K

Australia

From: neonixie-l@googlegroups.com [mailto:neonixie-l@googlegroups.com] On 
Behalf Of Bill Notfaded
Sent: Saturday, 9 March 2019 01:23
To: neonixie-l
Subject: [neonixie-l] Re: How dangerous is 150V - 170V DC?

 

I think Eric aka Tidak hit the nail on the head... it's not so much the voltage 
as the amperage that kills you.  I=V/R  You can plug the variables into ohm's 
law and figure it out pretty easily.  With high resistance even 170V doesn't 
equal many amps.  I think it's all about potentially how many electrons can 
flow (voltage) and how easily they are flowing (resistance).

On Friday, February 1, 2019 at 1:19:42 AM UTC-7, Thomas Kummer wrote:

I’m very reckless when it comes to my Nixie projects. I’ve shocked myself with 
150 - 170V DC more times than I care to admit, and every time I’ve done it, the 
shock isn’t that bad. However, every time I’ve done it, my hands have been dry, 
and there’s been a series resistor somewhere in the circuit. I’ve been tazed 
before, and the Nixie 150-170V is no where near as bad. Is it the resistors 
that have saved me, and I should thank my lucky stars that they were there? Or, 
is it the fact that 150-170V DC isn’t as dangerous as everyone makes it out to 
be? I mean either way I know I should be more careful. I guess what I’m getting 
at is what are the chances of me accidentally doing any significant  harm to 
myself from a Nixie project? 

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