EMRFD Message Archive 1497
Message Date From Subject 1497 2008-03-10 06:49:47 geomx2k7 Buying the book
have now given up. The book is just too hard to find. Ebay sells them
for the price of gold and I'm just not rich.
I am wondering if EMRFD will be too much for a beginner?
I have read about reactance, ohms law etc. but "impedance" is way too
confusing and the books I've looked at don't explain it for crud.
They don't even come close to explaining how to calculate resistor
values needed for a common emitter class A amplifier. I haven't got a
clue as how to calculate input and output impedance. As a beginner, am
I biting off more than I can chew here? Any help is more than
appreciated, thanks in advance.
KC7IPA1500 2008-03-10 08:12:30 Thomas S. Knutsen Re: Buying the book
Both are excelent books, even for an beginner.
73 de Thomas LA3PNA
Den 10. mars. 2008 kl. 11.43 skrev geomx2k7:
> I have tried to locate "Solid state design for the radio amateur" and[Non-text portions of this message have been removed]
> have now given up. The book is just too hard to find. Ebay sells them
> for the price of gold and I'm just not rich.
>
> I am wondering if EMRFD will be too much for a beginner?
> I have read about reactance, ohms law etc. but "impedance" is way too
> confusing and the books I've looked at don't explain it for crud.
> They don't even come close to explaining how to calculate resistor
> values needed for a common emitter class A amplifier. I haven't got a
> clue as how to calculate input and output impedance. As a beginner, am
> I biting off more than I can chew here? Any help is more than
> appreciated, thanks in advance.
>
> KC7IPA
>
>
>
1501 2008-03-10 08:12:43 Brian Murrey Re: Buying the book
was. I have both books though and I find the more I read and reread
them the better I understand some of this stuff.
If you don't have EMRFD, I recommend you get a copy. It's a great book.
"The Electronics of Radio" by David Rutledge is another great book to
have on the shelf and in your hands.
73
1502 2008-03-10 10:13:12 kd5kxf Re: Buying the book
SSDRA are considered long obsolete these days and can be hard to find
meaning substituting, while EMRFD uses more modern components. I
definitely found EMRFD easier to follow. I would suggest DeMaws QRP
Notebook also, 2n2222's will always be around. Start letting the smoke
out of some single stage transmitters with cheap PA's first.
73'
KD5KXF
Mike Malone
1503 2008-03-10 13:47:30 dixonglennb Re: Buying the book
If it makes you feel any better there are a lot of smart people
arguing in the pages of QEX magazine about tube amplifier output
impedance, and though I would not presume to do better I can think of
at least two important things they are not considering...so it is not
always an easy problem.
I'm not sure whether you understand such things as inductive and
capacitive reactance, and the notion that impedance is just a
combination of those combined with any real resistance. But here are
some suggestions:
The web. It is chock full of tutorials posted mostly by EE professors
for their students. If you Google on 'Class A Amplifier tutorial' for
example you will probably find something. Of course, as with all web
material the quality may be spotty.
Don't overlook ARRL's Radio Handbook. A great introduction to
electronics written with radio in mind. My first basic electronics
knowledge came from those pages, and any Elmer would be happy to lend
you an older copy. ARRL also offers DC and AC Electronics books and
other publications. I have not read most of these, but they are
probably pretty good. They have online electronics courses as well.
I took the antenna modeling class and it was excellent.
But if you know the basic electronics and are really more interested
in determining the input/output impedance of an RF stage, EMRFD really
can't be beat. Good, practical information.
73,
Glenn AC7ZN1505 2008-03-10 13:47:36 Brian Murrey Re: Buying the book
1509 2008-03-11 16:03:24 Tom Hall Buying the book
$35.00. Click on "Order it used!"
I see the average price has gone up a little and you might want to put in a
little more. You also may have to wait a bit. I think I waited about a
month. I finally got one in better condition than the one I lost.
If you've never owned the book then EMRFD is as good or better and you need
not worry about getting SSDRA. In my case, it was like a reunion with a long
lost friend.
Tom, AK2B
[Non-text portions of this message have been removed]1511 2008-03-12 14:04:23 kb3ils@comcast.ne... Re: Buying the book
I decided to start at the very basic level and make sure I have my fundamentals in place. I work in IT and am digitally wired. This radio stuff makes me think different. I like it, but it requires work on my part.
I am almost done with Understanding Basic Electronics from the ARRL. Some of it is too basic, but I am getting a nice understanding of conductance, impedance etc. It is easy reading and since this a hobby....I like that. I think this is well worth my time. I understand capacitors and how they work and some basic applications. Knowing these basics will help me in the long run. The latest printing was in 2006 so it should be current. The postings on this list and some others make more sense now that I have worked through this book.
The next book on the shelf to be read is another ARRL book "Basic Radio - Understanding the Key Building Blocks". I hope to pick up some more fundamentals from it. Then I will wade back into EMFRD and the ARRL handbook.
Someone mentioned the web. There is a site (NEETS?) that essentially has the basic electronics course on it that they give the military. It has some good stuff on this as well and was easy to read.
The conclusion that I came to is that pushing it too fast will take the fun out of it for me. I will never be a Wes Hayward....so why try to make myself one. I have backed off and now treat it as a long term learning course that I should enjoy.
Good luck with your learning.
Keith KB3ILS
Sent from my Verizon Wireless BlackBerry
-----Original Message-----
1512 2008-03-12 14:31:42 Dino Papas Re: Buying the book
http://www.tscm.com/reference.html
Scroll down the listings till you see them.
73 -- Dino KL0S/41513 2008-03-13 05:57:20 kd5kxf Re: Buying the book and getting started
experimenting... I did more experimenting and flying by the seat of
my pants and figured out formulas as it became necessary. ie smoke in
the shack. I had to brush up on my math, get a scientific calculator
and dived in. I actually have some RF Design books but I can tell you
that there is more to design than formulas. All the vector algebra in
world will not build a stable vfo.
Suggestions...
get a bread board
get a big stack of double sided pc board
build ugly style, ugly manhattan or manhattan after cludging stuff on
breadboard
pickup resistors in bulk
pickup some common transistors in bulk... 2n2222's or 2n390x
start with something simple... stay with it until you gain some
understanding and build from there
have fun and don't take yourself too serious
I have a cheap oscope and some other misc equip I have gathered at ham
fests... build up as you can and enjoy the journey.
73
Mike Malone
KD5KXF
transistor smoker and resistor poker1517 2008-03-13 22:29:27 big_old_biker Re: Buying the book
Who said this is an understandable subject. (Hi Hi)....
For so many situations there is no absolute optimum
impedence/gain/voltage/current..... the decisions may need to be
based on calculation, simulation, or construction. EMRFD presents a
selection of practical solutions rather than an absolute algorthimic
approach to the perfect/optimal/whatever solution... Although my
background has been a BSEE for 25 years, I still have difficulty
deciding where I need to be at the beginning of a design without a few
iterations of calculating,drawing and, starting over. There is no
one book that is the ultimate solution to RF design problems.
Candidates for a library will include all titles which include AC,DC
and Circuit analysis. The next level will be those that include
Electronic Communicati1518 2008-03-14 17:50:23 big_old_biker Re: Buying the book
I sure didn't mean for the last sentence to sound like that. What I
meant was keep increasing your available tools which includes physical
tools, reference tools, and experience. If you are involved with a
local club, let them know you are looking for tools, parts, books etc.
You would be amazed how many hams keep stashes of goodies to give
away to help someone get started. I agree that an oscilloscope opens
up a whole new world, and they are easy to find for free if you have
room for something large, or are willing to take one that uses tubes.
Big projects are hard to finish if you have work and family
committments, so success building and understanding small projects are
fun and can be a real confidence builder. Try this
http://www.vk2zay.net/index.php/ for a few interesting ideas or for
simple and unusual try http://mjrainey.googlepages.com/radio.
I spent most of my work life as a quality engineer, and never got to
design, so I am re-learning all my schooling in my retirement, and it
is a kick to design and build stuff to meet your needs. You will
learn a lot more1605 2008-04-27 09:27:47 Jim Kearman Re: Buying the book 1617 2008-04-28 07:05:59 Alan Jones Re: Buying the book
> But it's a credit to EMRFD that peopleGood Afternoon Jim,
> aren't selling them, and having discovered this group, my mouse is
> hovering over the Buy It With One Click button at Amazon in another
> browser tab.
>
>
> 73,
>
> Jim, KR1S
> http://qrp.kearman.com/ <http://qrp.kearman.com/>
>
I just wanted to let you know are not the only one who has a problem
with the price of EMRFD. My mouse was hovering this morning. :)
Alan
--
W8OAJ - Chaplain (CPT) O. Alan Jones, USAR - Fort Bliss, TX 79906.
"Home of Air Defense Artillery" Grid: DM61vw
http://exwn8jef.googlepages.com/home1618 2008-04-28 07:38:51 michael taylor Re: Buying the book 1621 2008-04-28 13:17:03 pmbellknoll Re: Buying the book
compare it to academic journals it is positively a steal, even when the canadian dollar
was running under .70 cents to the usd.
michael bell
ve3noo
1626 2008-04-29 20:50:07 wb7dmx Re: Buying the book 1627 2008-04-29 20:56:39 DSNman@comcast.ne... Re: Buying the book
I will say this. Out of all the electronic books I have ever purchased EMRFD has more for the buck than any other.
--
Loren Moline
WA7SKT
-------------- Original message ----------------------
1631 2008-05-03 11:03:07 jr_dakota Re: Buying the book
> > >
> >
> > Good Afternoon Jim,
> > I just wanted to let you know are not the only one who has a
> problem
> > with the price of EMRFD. My mouse was hovering this morning. :)
> >
> > Alan
> > --
> > W8OAJ - Chaplain (CPT) O. Alan Jones, USAR - Fort Bliss, TX 79906.
> > "Home of Air Defense Artillery" Grid: DM61vw
> > http://exwn8jef.googlepages.com/home
> >
> heck I ended up with two copies of the book.
>
1st 3 chapters so I finally broke down and bought a new one a couple
of month ago ... Now I use the old beat up copy on the bench and have
the other safely put away where it can't be damaged by an accident ...
I've always been attracted to ARRL books because they are cheaper than
equivelent technical books from Sams or McGraw Hill .... Actually I'm
seriously considering taking my new copy to a guy I know that does
book binding and have a hard cover put on it ....
JR1632 2008-05-03 11:14:47 bob bailey Re: Buying the book
sometimes I think real seriously of selling it at a reduced price, and use the money for parts, but I feel that would be cheating someone.
maybe not.
To: emrfd@yahoogroups.comFrom: SG2112@yahoo.comDate: Sat, 3 May 2008 18:03:04 +0000Subject: [emrfd] Re: Buying the book
> > > http://qrp.kearman.com/ <http://qrp.kearman.com/>> > > > > > > Good Afternoon Jim,> > I just wanted to let you know are not the only one who has a > problem > > with the price of EMRFD. My mouse was hovering this morning. :)> > > > Alan> > -- > > W8OAJ - Chaplain (CPT) O. Alan Jones, USAR - Fort Bliss, TX 79906.> > "Home of Air Defense Artillery" Grid: DM61vw> > http://exwn8jef.googlepages.com/home> >> heck I ended up with two copies of the book.>Me too ... my cat knocked an ice tea on my first one messing up the1st 3 chapters so I finally broke down and bought a new one a coupleof month ago ... Now I use the old beat up copy on the bench and havethe other safely put away where it can't be damaged by an accident ...I've always been attracted to ARRL books because they are cheaper thanequivelent technical books from Sams or McGraw Hill .... Actually I'mseriously considering taking my new copy to a guy I know that doesbook binding and have a hard cover put on it .... JR_________________________________________________________________
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[Non-text portions of this message have been removed]1634 2008-05-03 12:01:21 Rick Commo Re: Buying the book
If the guy you know will do it for it free - that's the best price!
Otherwise you might want to checkout Kinko's. I sing in a choral group. When we get a score of 100
or more pages I take it to Kinko's had have it spiral bound. The 225 page score to the Bach B-Minor
Mass cost me a whopping $5.50. This included a hard plastic back page and a clear, more flexible
front page.
You might want to have them do it to your old copy first. They have to take off the old binding
which reduces the inside margins a bit. Then holes for the spiral binding have to go in a little
bit and so you lose a little more binding as well. By when I looked at my copy of the EMRFD it
looks like it might work.
Cheers,
-rick, K7LOG
-----Original Message-----
1635 2008-05-03 15:09:10 Ron [W5RCM / ZS1M... Re: Buying the book
> Actually I'mNow THAT is a great idea. Ask him if he'd like to do more [by mail?]
> seriously considering taking my new copy to a guy I know that does
> book binding and have a hard cover put on it ....
and how much...
--
72, Ron McDowell - W5RCM / ZS1MCD
Austin TX / Hermanus ZA
w5rcm [at] Ham-Stuff [dot] NET1636 2008-05-04 08:13:21 ehydra Re: Buying the book
can see a sample page of it?
regards -
Henry
bob bailey schrieb:
> well mine is a bit different, the first copy I got, I found a few pages in two of the chapters, 10, and 11, where the lettering was a bit blurry to me, and i wrote a e-mail of complaint to arrl, and they sent me a now copy free, and said to just disposed of the old one any way I want, I am having a very hard time deciding what to do with it, I don't have the heart to destroy it, or I would feel guilty to sell it, so I also have it put away on the book shelf for safe keeping and use the defective one for study and on the bench, I also write notes and print out the corrections from the web sight and place those pages in the book.--
>
> sometimes I think real seriously of selling it at a reduced price, and use the money for parts, but I feel that would be cheating someone.
> maybe not.
>
>
> To: emrfd@yahoogroups.comFrom: SG2112@yahoo.comDate: Sat, 3 May 2008 18:03:04 +0000Subject: [emrfd] Re: Buying the book
>
>
>
>
>>>> http://qrp.kearman.com/ <http://qrp.kearman.com/>> > > > > > > Good Afternoon Jim,> > I just wanted to let you know are not the only one who has a > problem > > with the price of EMRFD. My mouse was hovering this morning. :)> > > > Alan> > -- > > W8OAJ - Chaplain (CPT) O. Alan Jones, USAR - Fort Bliss, TX 79906.> > "Home of Air Defense Artillery" Grid: DM61vw> > http://exwn8jef.googlepages.com/home> >> heck I ended up with two copies of the book.>Me too ... my cat knocked an ice tea on my first one messing up the1st 3 chapters so I finally broke down and bought a new one a coupleof month ago ... Now I use the old beat up copy on the bench and havethe other safely put away where it can't be damaged by an accident ...I've always been attracted to ARRL books because they are cheaper thanequivelent technical books from Sams or McGraw Hill .... Actually I'mseriously considering taking my new copy to a guy I know that doesbook binding and have a hard cover put on it .... JR
>
>
>
>
>
>
> _________________________________________________________________
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> ------------------------------------
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www.ehydra.dyndns.info1637 2008-05-04 08:22:38 bob bailey Re: Buying the book
To: emrfd@yahoogroups.comFrom: ehydra@arcor.deDate: Sun, 4 May 2008 14:10:54 +0200Subject: Re: [emrfd] Re: Buying the book
It must be really a bible if it so secured. Does someone know where I can see a sample page of it?regards -Henrybob bailey schrieb:> well mine is a bit different, the first copy I got, I found a few pages in two of the chapters, 10, and 11, where the lettering was a bit blurry to me, and i wrote a e-mail of complaint to arrl, and they sent me a now copy free, and said to just disposed of the old one any way I want, I am having a very hard time deciding what to do with it, I don't have the heart to destroy it, or I would feel guilty to sell it, so I also have it put away on the book shelf for safe keeping and use the defective one for study and on the bench, I also write notes and print out the corrections from the web sight and place those pages in the book.> > sometimes I think real seriously of selling it at a reduced price, and use the money for parts, but I feel that would be cheating someone.> maybe not.> > > To: emrfd@yahoogroups.comFrom: SG2112@yahoo.comDate: Sat, 3 May 2008 18:03:04 +0000Subject: [emrfd] Re: Buying the book> > > > >>>> http://qrp.kearman.com/ <http://qrp.kearman.com/>> > > > > > > Good Afternoon Jim,> > I just wanted to let you know are not the only one who has a > problem > > with the price of EMRFD. My mouse was hovering this morning. :)> > > > Alan> > -- > > W8OAJ - Chaplain (CPT) O. Alan Jones, USAR - Fort Bliss, TX 79906.> > "Home of Air Defense Artillery" Grid: DM61vw> > http://exwn8jef.googlepages.com/home> >> heck I ended up with two copies of the book.>Me too ... my cat knocked an ice tea on my first one messing up the1st 3 chapters so I finally broke down and bought a new one a coupleof month ago ... Now I use the old beat up copy on the bench and havethe other safely put away where it can't be damaged by an accident ...I've always been attracted to ARRL books because they are cheaper thanequivelent technical books from Sams or McGraw Hill .... Actually I'mseriously considering taking my new copy to a guy I know that doesbook binding and have a hard cover put on it .... JR > > > > > > > __________________________________________________________> With Windows Live for mobile, your contacts travel with you.> http://www.windowslive.com/mobile/overview.html?ocid=TXT_TAGLM_WL_Refresh_mobile_052008> > [Non-text portions of this message have been removed]> > > ------------------------------------> > Yahoo! Groups Links> > > > -- www.ehydra.dyndns.info
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[Non-text portions of this message have been removed]1638 2008-05-04 08:45:27 wb7dmx Re: Buying the book 1639 2008-05-04 14:15:03 Allison Parent Re: Buying the book
should be1640 2008-05-05 06:41:23 michael taylor Re: Buying the book 1641 2008-05-05 20:43:14 Alan Jones Re: Buying the book
Thanks for everyone's advice on getting the book.
Now I am looking forward to reading it.
Alan
--
W8OAJ - Chaplain (CPT) O. Alan Jones, USAR - Fort Bliss, TX
http://exwn8jef.googlepages.com/home