Radio amplifiers
RF Fm 88 108 MHz 20W amplifier BLV10 BLV87
This Fm rf power amplifier has 2 transistors from Philips : BLV 10 and BLW 87. The 2 rf transistors work in class C and this fm amplifier has a total gain of 21dB ( 100 X ) and efficiency 55 - 65%.
One low pass filter with 9 components ensures 60dB rejection on [...]
RF Fm 88-108 MHz radio amplifier BLF 245
This fm 88-108 Mhz radio amplifier is equiped with BLF 245 and can be user with a heatsink from a processor and cooler.
The BLF 245 Datasheet can be downloaded over here -> blf245-datasheet
VMOS 144 MHz Push Pull DV28120T amplifier
This is a 2 meters 144 Mhz rf amplifier wich works in push pull and is build with DV28120T Vmos.
You can use coils made form RG142 coaxial cable or similar, 620mm long , 5mm diameter, 6 turns with inside diameter 30mm no gaps between.
