RF Amplifier

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The preamplifier that i propose offers 20dB in all the region of VHF or FM and it still can also reach in 500MHZ. Enough aid for a lot of applications.
Note: Place the PCB in metal box of suitable dimensions.

Hope that it will help you.
 

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Hi Muki,
Remove the 120pF capacitors. Their reactance at 433MHz is only 3 ohms and they are shorting the transistors collector to base so they don't have any gain.
 
hello audioguru,
thanks for the advice but its working properly in my uncle's tv antenna without this the reception is very poor.
Anyway thanks a lot
 
Only because the capacitors probably aren't capacitors at that frequency, remove them and the performance should improve.
 
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