Hello, I'm looking for using an amp. in my circuit. I found that there are some types as:LNA,gain block and more... were can i find details on the difference between them. thanks
- posted
17 years ago
Hello, I'm looking for using an amp. in my circuit. I found that there are some types as:LNA,gain block and more... were can i find details on the difference between them. thanks
No offense, but if you are asking such questions, you should be looking at a completed amplifier, not rolling your own.
Impedance, bandwidth, noise figure?
Start with a 6SN7.
-- Many thanks, Don Lancaster voice phone: (928)428-4073
I'm not a RF expert, but here goes. LNA is a low noise amplifier, to be used with a weak signal. Gain blocks are used further down the chain. In a good design, you blow your noise budget at the front end. However, as you filter or mix, there are associated losses that need to be made up. You will need a power amp if you are going to transmit a signal.
It would be simpler if you stated what you are trying to accomplish, rather than ask general questions. If you want a RF pre-amp, check out
looking
Don Lancaster wrote: > yonni wrote: > > Hello, > > I'm looking for using an amp. in my circuit. I found that there are > > some types as:LNA,gain block and more... > > were can i find details on the difference between them. > > thanks > >
Thanks Don ! A good laugh is always appreciated. Love those glass-FETS.
GG
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