rf amplifier circuits
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VMOS 144 MHz Push Pull DV28120T amplifier
Dec 22nd
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. (more…)
2m 144MHz push pull amplifier DV28120T
Dec 21st
2 meters 144MHz push pull amplifier wich can generate 200W, how does it sound ? Sounds delicious with 2 DV28120T transistors. (more…)
VN66AF 27MHz CB amplifier
Nov 19th
The 10 meters 27MHz CW radio amplifier is equiped with VN66AF transistor produced by Siliconix wich has some advantages: its cheap, great dielectric insulation and high gain. Here we use VN66AF as an rf amplifier for 10m band (26 … 30 MHz ). (more…)
RF Fm 88-108 MHz radio amplifier BLF 245
Nov 5th
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 (more…)
88 108 MHz 40W wideband power amplifier MRF171A
Oct 24th
One wideband fm power amplifier designed with MRF 171A MosFet transistor. The output rf power is somewhere around 40W , the gains is 20dB ( 100 X ) . The input rf power is 400mW. (more…)
Rf power amplifier 100W BLY94
Oct 19th
100W RF power amplifier circuit built with 2 BLY94 transistors. If you want to see more rf amplifiers check the list bellow. Components: Active components: BLY94 Coaxial cable length : K x Lambda / 4, where K = 0.66 for 50 ohm cable and K = 0.8 for 75 ohm cable. (more…)
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