Radio Astronomy Cartoon: Electrocuted by the LNA (C) Andrew Thornett

[andrew....@googlemail.com]

[Stephen Arbogast]

Well,   I have  not  kept up  with  voltage regulators  in  recent    years.     I still  use  the   old standards  in  my  projects..  never  a  problem...   with  

On Sunday, January 4, 2026 at 7:28:02 PM UTC-7 andrew....@googlemail.com wrote:

[andrew....@googlemail.com]

My cartoon was using an awful lot of poetic licence!

Andy

 

From: 'Alex P' via Society of Amateur Radio Astronomers <sara...@googlegroups.com>
Sent: 05 January 2026 12:12
To: Society of Amateur Radio Astronomers <sara...@googlegroups.com>
Subject: [SARA] Re: Radio Astronomy Cartoon: Electrocuted by the LNA (C) Andrew Thornett

 

overall height to toroid = 4 ft      arcs   30"

 

https://www.youtube.com/watch?v=xz1EyDkMmqY

 

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[andrew....@googlemail.com]

Mind you, a few years back there was chap living near me who made voltage generating rings using capacitors from old microwaves – his normal one that he took around schools as physics demonstration (until health and safety rules stopped it) generated 50,000 V and a relatively small but still impressive arc – but he showed me the one he had made which generated 500,000 V (yes, half a million!) – perhaps he should have been more health and safety conscious – we were inside his garage and this thing sent an arc right down the garage to hit the metal garage door.

 

…..I am just going to check the voltage I am sending up the bias tee on my H-Line scope…..