|
Websites Found an interesting website? Post the details here and share it with the rest of us. Please stick to websites that are in some way related to our hobby/interest. |
|
Thread Tools |
26th Oct 2021, 9:02 am | #21 | |
Banned
Join Date: Feb 2017
Location: Bedfordshire, UK.
Posts: 601
|
Re: Beginners guide to valves
Quote:
|
|
26th Oct 2021, 9:32 am | #22 |
Banned
Join Date: Feb 2017
Location: Bedfordshire, UK.
Posts: 601
|
Re: Beginners guide to valves
Many thanks to all so far for the advices and opinions on what seems to be a bit of a learning curve. Hopefully i haven't given the impression of a 'Bubble Gum' take on my first look at this subject, but taken great notice of what to post on the subject and read into carefully as it seems to be one of something and something of another kind of thing! Anyway I am extremely grate full for the opinions and guidance as this is a new area we are looking at with Valve based amplifiers and hybrids in the medium premium to high end market repairs currently headed our way involving Home Hifi.
|
26th Oct 2021, 11:50 am | #23 |
Dekatron
Join Date: Jun 2015
Location: Biggin Hill, London, UK.
Posts: 5,208
|
Re: Beginners guide to valves
I found 'Basic Electronics', the 6 orange books in the 'Common Core' series to be a reasonable introduction to valves. Mind you I was about 6 years old when I frst read them.
|
26th Oct 2021, 12:54 pm | #24 |
Nonode
Join Date: May 2016
Location: Cornwall, UK.
Posts: 2,333
|
Re: Beginners guide to valves
|
26th Oct 2021, 1:41 pm | #25 |
Dekatron
Join Date: Jun 2015
Location: Biggin Hill, London, UK.
Posts: 5,208
|
Re: Beginners guide to valves
And when you have read and understood those, I would probably go on to 'Foundations of Wireless' by Scroggie. After then you can try more mathematical books (Terman, Langford-Smith) if you want to.
|
26th Oct 2021, 1:56 pm | #26 | |
Dekatron
Join Date: Oct 2003
Location: Croydon, Surrey, UK.
Posts: 7,571
|
Re: Beginners guide to valves
Quote:
Ummm.....WHAT exactly!!!
__________________
There are lots of brilliant keyboard players and then there is Rick Wakeman..... |
|
26th Oct 2021, 2:42 pm | #27 |
Hexode
Join Date: Feb 2007
Location: Chesterfield, Derbyshire, UK.
Posts: 483
|
Re: Beginners guide to valves
I think I will stick to my common core series of books if I need a refresher rather that the misinformation that often abounds on the internet, they have served me well for many years.
|
26th Oct 2021, 3:45 pm | #28 |
Dekatron
Join Date: Oct 2003
Location: Croydon, Surrey, UK.
Posts: 7,571
|
Re: Beginners guide to valves
Many years ago I had a book called (I think) A Fundamental Guide to Radio Valve Techniques. There were several hundred pages and a teardown of a typical (then) valve into its component parts. Pity I can't find it now and not sure I have the title completely correct. If you didn't know how valves worked by the time you reached the end.......! Must be over 50 years ago and it was old then!
It was written by people involved in the design and manufacture of valves.
__________________
There are lots of brilliant keyboard players and then there is Rick Wakeman..... |
26th Oct 2021, 3:58 pm | #29 |
Dekatron
Join Date: Oct 2003
Location: Croydon, Surrey, UK.
Posts: 7,571
|
Re: Beginners guide to valves
I think it might be this one https://www.hificollective.co.uk/books/bk3008.html
but it looks like you have to create an account to download (and it probably isn't free)!
__________________
There are lots of brilliant keyboard players and then there is Rick Wakeman..... |
26th Oct 2021, 4:10 pm | #30 |
Nonode
Join Date: May 2016
Location: Cornwall, UK.
Posts: 2,333
|
Re: Beginners guide to valves
There are 2018 reprints of that on Abebooks for a similar price (560 pages).
|
26th Oct 2021, 6:30 pm | #31 |
Hexode
Join Date: Jun 2018
Location: Buckinghamshire, UK.
Posts: 387
|
Re: Beginners guide to valves
Also available on the internet archive:-
"Fundamentals of Radio-Valve Technique by J. Deketh" https://archive.org/details/in.ernet...05617/mode/1up (1949, 556 pages, 65.5MB) Cheers |
26th Oct 2021, 7:15 pm | #32 |
Dekatron
Join Date: Oct 2003
Location: Croydon, Surrey, UK.
Posts: 7,571
|
Re: Beginners guide to valves
That's it! Thanks for posting that link. Like most of these reference books, there is an awful lot of information there that you probably don't need to know so just go for the bits that interest you or are relevent and go back to the rest of it when you are ready. At least you know the information is correct. I didn't realise it was produced by Philips in Holland.
__________________
There are lots of brilliant keyboard players and then there is Rick Wakeman..... |
26th Oct 2021, 8:44 pm | #33 | |
Banned
Join Date: Feb 2017
Location: Bedfordshire, UK.
Posts: 601
|
Re: Beginners guide to valves
Quote:
After a look at this I think Im in need of a heart Valve Brilliant link thankyou |
|
27th Oct 2021, 2:45 pm | #34 |
Dekatron
Join Date: Jun 2009
Location: Staffordshire Moorlands, UK.
Posts: 5,271
|
Re: Beginners guide to valves
somewhat misleading info, I'll say no more.
__________________
Kevin |
27th Oct 2021, 6:32 pm | #35 |
Moderator
Join Date: Mar 2012
Location: Fife, Scotland, UK.
Posts: 22,869
|
Re: Beginners guide to valves
A positively charged electron is the electron's antiparticle, once called a positron, now called an antielectron. They are antimatter and will annihilate with a normal electron, yielding an amazing amount of energy.... 1.64 E-13 joules per particle pair. Probably as a photon of 2.47 E20 Hz jeepers! a wavelength of 1.2 E-12 metres. = Mega-electron volts = very hard gamma rays.
Don't try any of the experiments in that book at home! Forget the lead lined underwear, you want to be a very very long way away from these events. David
__________________
Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done |
27th Oct 2021, 8:43 pm | #36 | |
Hexode
Join Date: Jun 2018
Location: Buckinghamshire, UK.
Posts: 387
|
Re: Beginners guide to valves
One shouldn't be overly concerned about proximity to electron/positron anihilation events - thay do after all occur at a pretty good rate inside your body during a normal PET scan...
Quote:
Cheers |
|
30th Oct 2021, 1:17 am | #37 | |
Triode
Join Date: Aug 2021
Location: Northampton, Northamptonshire, UK.
Posts: 13
|
Re: Beginners guide to valves
Quote:
there's a little RSGB paperback from the 40s called something like "introduction to valve technique" which is riddled with alternative facts. It was justly panned by WW in their publications section. There's nothing new under the sun! Rob |
|
30th Oct 2021, 1:25 am | #38 | |
Triode
Join Date: Aug 2021
Location: Northampton, Northamptonshire, UK.
Posts: 13
|
Re: Beginners guide to valves
Quote:
|
|
30th Oct 2021, 11:05 pm | #39 | ||
Dekatron
Join Date: May 2010
Location: Greater Manchester, UK.
Posts: 18,713
|
Re: Beginners guide to valves
Quote:
__________________
-- Graham. G3ZVT |
||
31st Oct 2021, 12:22 am | #40 |
Moderator
Join Date: Mar 2012
Location: Fife, Scotland, UK.
Posts: 22,869
|
Re: Beginners guide to valves
I've heard of that booklet, but never seen one in the flesh. Perhaps everyone took WW's advice and gave it the Ray Bradbury treatment? I did mean the main handbooks. I use Terman and Langford-Smith, but they may not suit everyone's digestion.
David
__________________
Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done |