please help transistor amplifier

yungman

When you use a credit card to open an account with Amazon, make sure don't let your computer remember your password, and Amazon ask you whether you want to keep logging in even you close the page......DON'T. Always logout when you close the page and don't let the computer remember your pass word.

michael1978

yeh i know but there are a lot of hackers today, i have to open only with 200E if it is possible, because i think they will not open with low credit

michael1978

HI Jony how are you, may i ask you something, the schematic of designin of amplifier , you make it with light spice of some other software , because you told me i use light spice,
greetings

yungman

Well, there is a balance of being safe and missing out. Write to Amazon and ask what is the best way. It is their utmost interest to keep it safe as their business depends on this too.

michael1978

thnx for reply, yes i know, but i will go first to my bank to ask

yungman

The bank cannot help much, call the credit card company like VISA also.

Ask Amazon, they should be able to help you. I have very good experience with Amazon, I have been ordering from them for years, never have a single problem. Their service is second to none......absolutely none. One time I order a tiller.....over 100lbs gas tiller for turning the ground, There was a small crack on some non critical area, I asked for exchange, they shipped me a second one immediately and arranged to pickup the first one. The kicker was I decided to keep the original, they said "no problem", they just arranged to pickup the second one!!!!

I buy computers, guitar pickups, protein powders, gifts.....I just paid $1600 to buy a new Nikon camera and Tamron lens from them just a month ago. I even paid a little more just to buy on Amazon because of their service. Oh Yeh, thousands of dollars of text books used from Amazon also. When they say is good condition, they ARE in good condition. Half the time, they look new.

One thing about studying, you need books, lots of books. I buy 7 to 8 text books on each subject to compare as no book is good in all topics, each has their strong and weak points. You need a few to get the whole picture. Malvino is one exceptional one. Can you imagine if I buy my two tall book shelves of new books?!!! That would have been very expensive. I just bought the Malvino 6th edition for $8 shipped!!!!

michael1978

i will try, so chip you buy malvino, and do you have 7 edition, if you have 7 edition, wich is better, 6 of 7 edition,

yungman

I have not received it yet. I must had the first edition in the late 70s!!! I long lost the book. The book is in my head and been using what I learned to do a lot of designs all these years. I just want to keep a copy for my collection, not that I need it. I since learn a whole lot more about transistors and op-amps. It is a very good introduction book for electronics.

michael1978

you can find it in internet

yungman

I am old school, I want it to be in my hands!!!

I am keeping it as a collection, it's the very first book I used to really learn electronics, it has a special meaning for me. I studied electronics all by myself all these years, books are like my university. I have more books on the subjects I studied than the Stanford University library......A whole lot more. The only way for me is to buy online where I have the resource of the whole world. That's the reason I keep telling you to find a way to buy on Amazon, you can't just go to a book store in your area to look for books, they don't have the vast collection.

michael1978

yes i know, because i buy some books here but pfff they dont explain good and you dont learn nothing special to give you some idea to make something, that book understand i think only the author;-), you have so much books, and if you want to buy at amazon, you have to look for used books

yungman

I bought 100% used, still cost me thousands!!! The new ones are mostly over $100, even used ones are $40 to $60 each. That's the reason why I was suggesting you to work it out on Amazon.

BTW, I received the Malvino, this one is old!! But hey, it's $8.00 to the front door!!! I can't complain.

michael1978

yes i understand, i with try first with this book, and to look to open my card, because i dont have so much time, you download books from internet? do you know any site?

michael1978

hi Jony can you help me with this equation
on page 3 post 48
this one Re2 = ( 220 * 11.5 ) / (220 - 12.5) = 12.1 = 12Ω.
is not like you told me Re2 = ( 220 * 11.5 ) / (220 + 12.5) = 12.1 = 12Ω in place from - in plus +

yungman

I read the post 48, I am pretty sure that was not the description of this circuit. There is no Re2, the collector current setting is different.

yungman

I type "free download solution manual Malvino.........." and see what comes up!!!

It's a lot of leg work, you might go around in circles and they end up asking for money, then you have to quit and look for another site. There is no one site for this. But you'll likely find one if you work at it.

michael1978

look page 4 post 49, and you will see
this one Re2 = ( 220 * 11.5 ) / (220 - 12.5) = 12.1 = 12Ω.
is not like you told me Re2 = ( 220 * 11.5 ) / (220 + 12.5) = 12.1 = 12Ω in place from - in plus +
but i think in place from 12.5 is 11.5 jony i think he say to me i make mistake