Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail
From: john larkin <JL@gct.com>
Newsgroups: sci.electronics.design
Subject: Re: electrical deaths
Date: Sat, 30 Nov 2024 08:14:50 -0800
Organization: A noiseless patient Spider
Lines: 57
Message-ID: <18emkjt9r5c2etbc577s3qa276d50el2j4@4ax.com>
References: <iv1dkj1d8qa5cvm4r5b7mbehcot0lnd057@4ax.com> <vi62rh$14fi$1@nnrp.usenet.blueworldhosting.com> <vi7k6j$37g9$6@dont-email.me> <vi99bt$f1r1$1@dont-email.me> <1r3qb00.1fgzoxb1tmjhzN%liz@poppyrecords.invalid.invalid> <vi9mqg$hds0$1@dont-email.me> <ah8m1lxq3c.ln2@Telcontar.valinor> <via7ui$kcu0$1@dont-email.me> <viadgp$31bi$1@nnrp.usenet.blueworldhosting.com> <viaje1$m7b3$3@dont-email.me> <vidti1$qpt$1@nnrp.usenet.blueworldhosting.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Injection-Date: Sat, 30 Nov 2024 17:14:51 +0100 (CET)
Injection-Info: dont-email.me; posting-host="29885b941dd035e97fa26ef25062c9e6";
	logging-data="1924677"; mail-complaints-to="abuse@eternal-september.org";	posting-account="U2FsdGVkX1+dUrbOGfxymXrEIzQLlHuw"
User-Agent: ForteAgent/8.00.32.1272
Cancel-Lock: sha1:4Dt0R/G+L5YLbIabrkkGtNvSuq4=
Bytes: 3963

On Fri, 29 Nov 2024 21:33:36 -0500, "Edward Rawde"
<invalid@invalid.invalid> wrote:

>"Don Y" <blockedofcourse@foo.invalid> wrote in message news:viaje1$m7b3$3@dont-email.me...
>> On 11/28/2024 11:41 AM, Edward Rawde wrote:
>>> "Martin Brown" <'''newspam'''@nonad.co.uk> wrote in message news:via7ui$kcu0$1@dont-email.me...
>>>> On 28/11/2024 13:41, Carlos E.R. wrote:
>>>>> On 2024-11-28 13:14, Martin Brown wrote:
>>>>>
>>>>> ...
>>>>>
>>>>>> One of my friends at university (at a top level institution) found himself holding a live plug a on Jesus lead left behind by 
>>>>>> a
>>>>>> previous graduate student. The burns from that were horrific. Once attached you can't let go or move and burning human flesh
>>>>>> doesn't smell good. He was probably only on for 30s before someone realised and disconnected him.
>>>>>
>>>>> What's a "Jesus lead"? I tried to google, but what I find are songs.
>>>>
>>>> A mains cable with a plug on each end. In this case plugged into a 4 way extension block under a rack full of electronics in a 
>>>> top
>>>> physics lab!
>>>>
>>>> So named because it gets you closer to God.
>>>>
>>>> Google seems singularly unhelpful on this one...
>>>
>>> I once went into radio shack in the US and asked for an extension mains lead.
>>> I got a blank look, so I pointed to what I wanted and learned that I should have said power cord.
>>
>> It was common, in the days of tube-based TV sets, to salvage the power
>> cord ("cheater") from an old set.  The cord on the set was affixed to the
>> back cover to provide an interlock so you couldn't operate the set with
>> the cover off.  The "cheater" eliminated that restriction -- at a bit
>> of risk to the user.
>>
>
>I don't think the back of our tube-based TV was ever on.
>While it was under warranty, service people seemed to arrive monthly.
>When it was out of warranty I learned a lot about the practical side of electronics.
>Eventually it ran reasonably reliably until the picture tube gave up so my father and myself replaced the A66-140X
>
>https://www.google.com/search?q=beovision+3400+pdf
>
>I don't think the UK ever had any tube only colour TVs, they were all hybrids (tubes for high power / high voltage) and 
>semiconductors.
>In the above case all discrete except for one integrated circuit (line oscillator). 
>

We (and I) had giant all-tube color TVs with three electron gun/shadow
mask CRTs, power hogs and the color quality was poor. They had to be
degaussed after installation.

It was fun to wave a magnet near the screen. If you got too close, it
would leave a color distortion spot so degauss again.