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VHF AMPLIFIER (PLZ ANSWER)


sssaaa

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Hi

you are not able to answer this question

Hehe, so i am not able to answer this question, hehehehe

But, there are 3 projects dealing with amplifying signals in the 86-108Mhz range at the RF
Cirquits Projects side. One of them try to amplify these signals, using miller integrators, and
i dont think that is a good design.

leave it man

Ok, i leave it, but it is not a promise

dont worry

Im not worried

give chance to others to give the answers

I belive everyone is allowed to post in every topic, and usally also are wlecome

these simple questions

Simple? We dont even know wich of the amplifiers we shall discuss

//Staigen
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Hi

IT WILL WORK OR NOT?

Its not that simple, the question can't be answered that easy.
It might work or it might not work!
What is your antenna for instance? And how far is the radio stations?
The power they transmit at? Your topology?
Nothing can stand up against a good antenna arangement!
You should start there, if you dont already have done that.
The amplifier you linked to is the one that have the miller integrators.
I belive the other two is better, but i am not sure.

//Staigen
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Hi

Can you describe your antenna and topography?
Isn't the other two good enough?
Here are the links:

http://www.electronics-lab.com/projects/rf/003/index.html

http://www.electronics-lab.com/projects/rf/022/index.html

And you got one from SM2GXN
Hey SM2GXN, what do you think of using miller integrators as VHF amplifiers?
You, if anybody should know about this!

//Staigen

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Hi

i m using yagi tv antenna

A TV antenna is not tuned to the FM band, and is not very good for DX-ing
at FM! Was the other two amplifiers not good enough for amplifying the signal?

Hey SM2GXN, yours pdf file is not opening in my computer

It opened nice here, its an article from an australian mag, with an antenna amp.
Do you have Acrobat Reader installed?

//Staigen
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Was the other two amplifiers not good enough for amplifying the signal?

i didnt check the other two amplifiers.
but i also check this
http://www.uoguelph.ca/~antoon/circ/activefm.html
but not with 2570 transistor because it is not avaible here i use 2N5179.
and i use telescope antenna for this circuit.
this circuit is also not working. Is this circuit is correct?

Do you have Acrobat Reader installed?

yes i have
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Hi

Isn't that one similar to one of the amps here on this site?
You cant use a simple telescope antenna for DX-ing!
The circuit seems to be a working circuit, but aso check the
cirquit, that is similar, here at E-Lab.
And use a good antenna, else you won't be hearing anything!


//Staigen

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