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Marios Lazos January 8th 07 07:53 PM

Antenna preamplifier
 
Hi you all there!

I need to build an antenna preamplifier for the FM band.So after a short looking i found the follow Fets:BF198,BF199,BF173 to design
my equipment.Will this choice could be better?Do you know some other FETs/TRs for this purpose?Thank you.

Marios,SV1EDG
mlazos.freewbsites.com




Reinhard Zwirner January 8th 07 09:37 PM

Antenna preamplifier
 
Marios Lazos schrieb:

Hi you all there!

I need to build an antenna preamplifier for the FM band.So after a short looking i found the follow Fets:BF198,BF199,BF173 to design


Those transistors aren't FETs, just silicon npn transistors for
RF applications. You can find the datasheets at

http://www.datasheetcatalog.com/

HTH

Reinhard

Jimmie D January 9th 07 09:06 PM

Antenna preamplifier
 

"Reinhard Zwirner" wrote in message
...
Marios Lazos schrieb:

Hi you all there!

I need to build an antenna preamplifier for the FM band.So after a short
looking i found the follow Fets:BF198,BF199,BF173 to design


Those transistors aren't FETs, just silicon npn transistors for
RF applications. You can find the datasheets at

http://www.datasheetcatalog.com/

HTH

Reinhard


The good are are pretty cheap, mine was a Wineguard and it worked great.The
only other one I have tried that really gave an improvment in sensitivity
was made by Blonder Tongue. There are a lot of others that just provide gain
and can actually make reception worse.




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