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#1
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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 |
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#2
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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 |
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#3
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"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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