Re: yes!

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Sujet : Re: yes!
De : alien (at) *nospam* comet.invalid (Jan Panteltje)
Groupes : sci.electronics.design
Date : 22. Aug 2024, 07:27:27
Autres entêtes
Message-ID : <va6log$1hs0d$1@solani.org>
References : 1 2 3 4 5 6 7 8 9 10 11 12 13 14
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On a sunny day (Wed, 21 Aug 2024 12:12:23 -0400) it happened "Edward Rawde"
<invalid@invalid.invalid> wrote in
<va53l8$1edn$1@nnrp.usenet.blueworldhosting.com>:

"Jan Panteltje" <alien@comet.invalid> wrote in message news:va4vv2$1h1un$1@solani.org...
On a sunny day (Wed, 21 Aug 2024 07:43:55 -0700) it happened john larkin
<jlarkin_highland_tech> wrote in <6oubcj5r9fduockf0j1ind3r1lpe5p61pa@4ax.com>:
>
On Wed, 21 Aug 2024 05:27:25 GMT, Jan Panteltje <alien@comet.invalid>
wrote:
>
On a sunny day (Tue, 20 Aug 2024 09:25:27 -0700) it happened john larkin
<jlarkin_highland_tech> wrote in <3kg9cj1fp2jifl9vre6ad7tkd0cj4fp1ac@4ax.com>:
>
On Tue, 20 Aug 2024 17:13:39 +0100, Martin Brown
<'''newspam'''@nonad.co.uk> wrote:
>
On 20/08/2024 16:30, Phil Hobbs wrote:
Edward Rawde <invalid@invalid.invalid> wrote:
"john larkin" <jlarkin_highland_tech> wrote in message
I preferred Popular Electronics myself.
>
Just as elsewhere at the time you might only have had access to Rossiyskaya Elektronika.
The world was smaller then.
>
Back when I was 21 and trying to come up to speed in RF, I learned a lot
from RF Design and Wireless World.
>
WW was good on content but circuit diagrams in it were somewhat badly
typeset at times - just enough to make it tricky to get working.
>
Elektor was the other European mag back then and it is still going. They
had a summer special with loads of circuit ideas much like IU. Quirky
resistors as rectangular boxes was one of their trademarks.
>
Do kids these days have similar guides to designing real electronics?
>
When I interview an engineer, recent grad or not, I give them my
2-resistor voltage divider test. Most start mumbling and can't do it.
>
>
Apart from 'Elektor', that was called 'Electuur' here in the Netherlands,
we had 'Radio ELectronica' that last one was my faforite,
Way before that we had 'Radio Blan':
https://archive.org/details/radio-blan/Radio_Blan_01_juli_1960/
Used to read that and build those projects.. If I could get the parts...
Componets from 'Amroh'
https://became.nl/amroh/Geschiedenis%20AMROH/historie1.htm
their '402 coil' (medium wave coil) was seen in many projects.
 Amroh goes back to 1932...
>
As to 2 resistors that sounds bad...
I remember asking to draw a transistor relais driver to see if they forgot the flyback protection diode...
>
The really advanced question is to state the voltages in an emitter
follower.
>
I recently hired a kid who flubed the voltage divider question. 10
volt supply, 9K and 1K divider, what's the voltage across the 1K? He
mumbled and said 9.
>
Oops!
>
Maybe we should ask 'did you ever design something or build something yourself at home?'
>
Why should he have? No-one does that any more.
If your time is taken up by other things such as your latest text message and if everything electronic that you need (such as
your
Mobile Phone, TV, Microwave Oven, Toaster etc) is readily available by magic then why would you want to learn how to design
anything
yourself?
>
In any case no-one wants you to know anything about their latest designs because you might become a competitor and eat into
their
profits.

Oh, I once signed a non-dislosure contract for a company I did work for,
But I am an open-source guy.
That goes for hardware I designed and software I designed
 https://panteltje.nl/panteltje/newsflex/download.html
All puters run Linux here.
Some asm stuff:
 https://panteltje.nl/panteltje/pic/index.html
 https://panteltje.nl/index1.html




I wonder whether anyone patented the two-resistor voltage divider when it was first invented.
>
Most companies don't care what you do or did at home.

Real ones do
I got the job at the national TV network here
in the interview I pointed out I just designed and build a portable TV camera.
Not many existed...
1968 that was
Knew the answer to all the questions...


If they want electronic design they'll tell HR to find an individual with suitable qualifications.
If that process doesn't go well (perhaps because the interviewer couldn't tell whether a candidate was suitable or not) then a
lot
of time and money will be needed to fix whatever was designed. This is seen as normal in many places. I had one manager tell me
>
"It's not a requirement for it to work" In an assertive non-joking tone. I didn't reply but my mind said "well in that case I
think
you should find someone else to do it".

I have done many sorts of jobs all around the world.
The requirement always is that you deliver.

For a while I had my own TV repair shop in Amsterdam.
People expect the stuff you repair to work.
Went to US for some weeks, needed somebody to fix any quarantee cases for a few weeks,
guy came in, I gave him a defective set, can you fix this?
He did, hired him.

In broadcasting I have seen higher educated people than me break down and actually quit.
Guy I replaced left after  he had a work stress related breakdown.
My boss later ended up in the mad house, last we heard from him was a postcard from that place.
Always thought it was my declarations that made him flip ;-)
When I was hired we got six month payed in the schoolbenches learning everything from managment to cameras to TV to satellite to audio to security to fire
all top level, you had to be able to repair stuff on the spot.
Studios (we had 6 to look after) were extremely complex with millions of dollars
stuff and the show must go on...
And there was film too in those days.

In depth knowledge, thousands of circuits, speed, human interaction (always stress, producers, artist waiting..
you cannot sell a black screen), much more to it, glowbal networking
Dreaming on a table with a pen and a peace of paper was not an option.
And shifts, early morning to late night...
I have seen people drop out...
When those moon landings happened I was sometimes in the head control room here relaying it..
Lots of tube equipment there back then.

Done many other things, technical translator, writing docs from lab reports, programming, art, airport electronics,
security, what not.
Started with designing power electronics for the army and navy and telcos, dangerous work on those navy ships,
Broadcasting  was at least safe :-)


It's also true that home electronics is now so much more reliable than it was 60 years ago that no-one at home needs to care how
>
anything works.
My father could repair a toaster no trouble. But these days when toasters die they go to the dump not the repair shop. The
repair
shop no-longer exists for that reason. Repair shops were often associated with the home of the owner and the same test equipment
>
used for repair could be used for design.
>
There are also many reasons why you can't sell anything you design at home because you don't have the money to make sure it
complies
with safety and other standards.
And you don't have money for the lawsuit when someone claims your product injured them.

Well, add a disclamer ;-)

Too many lawyers anyways..

Most I learned about software and microprocessors I learned designing things at home,
Some good books... 'Micro processor interfacing techniques' in the seventies...
 https://www.amazon.com/Microprocessor-Interfacing-Techniques-Rodnay-Zaks/dp/0895880296
started with a Sinclair ZX80

There is now a right to repair movement going on, at least in the EU


Date Sujet#  Auteur
15 Aug 24 * yes!92john larkin
15 Aug 24 +* Re: yes!6Joe Gwinn
15 Aug 24 i`* Re: yes!5john larkin
15 Aug 24 i `* Re: yes!4Edward Rawde
15 Aug 24 i  `* Re: yes!3john larkin
15 Aug 24 i   +- Re: yes!1Bill Sloman
15 Aug 24 i   `- Re: yes!1Edward Rawde
15 Aug 24 +- Re: yes!1Jan Panteltje
15 Aug 24 +* Re: yes!4Jeroen Belleman
15 Aug 24 i+- Re: yes!1Jan Panteltje
15 Aug 24 i+- Re: yes!1Jan Panteltje
16 Aug 24 i`- Re: yes!1Jan Panteltje
15 Aug 24 +* Re: yes!79Martin Brown
15 Aug 24 i+* Re: yes!76john larkin
16 Aug 24 ii+* Re: yes!5Edward Rawde
17 Aug 24 iii`* Re: yes!4john larkin
17 Aug 24 iii +- Re: yes!1Edward Rawde
17 Aug 24 iii `* Re: yes!2Jeroen Belleman
17 Aug 24 iii  `- Re: yes!1Martin Brown
16 Aug 24 ii`* Re: yes!70Martin Brown
17 Aug 24 ii +* Re: yes!50john larkin
17 Aug 24 ii i+* Re: yes!48Jan Panteltje
17 Aug 24 ii ii`* Re: yes!47john larkin
17 Aug 24 ii ii +* Re: yes!3Jan Panteltje
17 Aug 24 ii ii i`* Re: yes!2john larkin
18 Aug 24 ii ii i `- Re: yes!1Bill Sloman
17 Aug 24 ii ii +- Re: yes!1Bill Sloman
17 Aug 24 ii ii `* Re: yes!42Edward Rawde
17 Aug 24 ii ii  `* Re: yes!41john larkin
18 Aug 24 ii ii   `* Re: yes!40Bill Sloman
18 Aug 24 ii ii    `* Re: yes!39john larkin
19 Aug 24 ii ii     `* Re: yes!38Bill Sloman
19 Aug 24 ii ii      `* Re: yes!37john larkin
19 Aug 24 ii ii       +- Re: yes!1Bill Sloman
20 Aug 24 ii ii       `* Re: yes!35john larkin
20 Aug 24 ii ii        `* Re: yes!34Edward Rawde
20 Aug 24 ii ii         +* Re: yes!32john larkin
20 Aug 24 ii ii         i+* Re: yes!22Edward Rawde
20 Aug 24 ii ii         ii`* Re: yes!21john larkin
20 Aug 24 ii ii         ii `* Re: yes!20Edward Rawde
20 Aug 24 ii ii         ii  `* Re: yes!19john larkin
20 Aug 24 ii ii         ii   `* Re: yes!18Edward Rawde
20 Aug 24 ii ii         ii    `* Re: yes!17Phil Hobbs
20 Aug 24 ii ii         ii     `* Re: yes!16Martin Brown
20 Aug 24 ii ii         ii      `* Re: yes!15john larkin
20 Aug 24 ii ii         ii       +* Re: yes!2Edward Rawde
21 Aug 24 ii ii         ii       i`- Re: yes!1Jan Panteltje
21 Aug 24 ii ii         ii       +- Re: yes!1Bill Sloman
21 Aug 24 ii ii         ii       `* Re: yes!11Jan Panteltje
21 Aug 24 ii ii         ii        +* Re: yes!8john larkin
21 Aug 24 ii ii         ii        i`* Re: yes!7Jan Panteltje
21 Aug 24 ii ii         ii        i +* Re: yes!2john larkin
21 Aug 24 ii ii         ii        i i`- Re: yes!1Jeroen Belleman
21 Aug 24 ii ii         ii        i `* Re: yes!4Edward Rawde
21 Aug 24 ii ii         ii        i  +- Re: yes!1john larkin
22 Aug 24 ii ii         ii        i  `* Re: yes!2Jan Panteltje
22 Aug 24 ii ii         ii        i   `- Re: yes!1Edward Rawde
22 Aug 24 ii ii         ii        `* Re: yes!2Gerhard Hoffmann
22 Aug 24 ii ii         ii         `- Re: yes!1Jan Panteltje
20 Aug 24 ii ii         i+* Re: yes!6Bill Sloman
20 Aug 24 ii ii         ii`* Re: yes!5Edward Rawde
21 Aug 24 ii ii         ii `* Re: yes!4john larkin
21 Aug 24 ii ii         ii  `* Re: yes!3Jeroen Belleman
21 Aug 24 ii ii         ii   +- Re: yes!1Bill Sloman
21 Aug 24 ii ii         ii   `- Re: yes!1Edward Rawde
20 Aug 24 ii ii         i`* Re: yes!3Joe Gwinn
21 Aug 24 ii ii         i `* Re: yes!2john larkin
21 Aug 24 ii ii         i  `- Re: yes!1Bill Sloman
20 Aug 24 ii ii         `- Re: yes!1Bill Sloman
17 Aug 24 ii i`- Re: yes!1Bill Sloman
17 Aug 24 ii `* Re: yes!19john larkin
17 Aug 24 ii  +- Re: yes!1Bill Sloman
17 Aug 24 ii  +- Re: yes!1Joe Gwinn
17 Aug 24 ii  `* Re: yes!16Martin Brown
18 Aug 24 ii   `* Re: yes!15john larkin
18 Aug 24 ii    `* Re: yes!14Bill Sloman
18 Aug 24 ii     `* Re: yes!13john larkin
18 Aug 24 ii      +* Re: yes!3Edward Rawde
18 Aug 24 ii      i`* Re: yes!2john larkin
19 Aug 24 ii      i `- Re: yes!1Bill Sloman
19 Aug 24 ii      `* Re: yes!9Bill Sloman
19 Aug 24 ii       `* Re: yes!8Jan Panteltje
19 Aug 24 ii        `* Re: yes!7john larkin
19 Aug 24 ii         +* Re: yes!3Phil Hobbs
19 Aug 24 ii         i`* Re: yes!2john larkin
19 Aug 24 ii         i `- Re: yes!1Phil Hobbs
19 Aug 24 ii         `* Re: yes!3Joe Gwinn
19 Aug 24 ii          `* Re: yes!2john larkin
19 Aug 24 ii           `- Re: yes!1Joe Gwinn
16 Aug 24 i+- Re: yes!1Joe Gwinn
16 Aug 24 i`- Re: yes!1Edward Rawde
19 Aug 24 `- Re: yes!1Sylvia Else

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