This RF amplifier for FM 88-108 MHz with no tune (broadband) needed to cover all the FM Band. You need the 2N3866 driver stage to boost properly the BLV10 transitor. All the impedance networks (Input-Output) of this RF amplifier have been determined by using the softwares: Mimp.EXE - Genesys. RF FM Power Amplifier Schematic-PCB Due to the good harmonic rejection of the RF amplifier design, a low pass filter is not necessary. Or you can download RF Filter Design AADE and RF Filter Desig [...]
This RF amplifier for FM 88-108 MHz with no tune (broadband) needed to cover all the FM Band. This RF Power amplifier is equiped with two Philips bipolar transistors : the BLV10 & BLW87. All the impedance networks (Input-Output) of this RF amplifier have been determined by using the softwares: Mimp.EXE. This RF Amplifier need a 9 elements low pass filter ensures that its harmonic frequency meet at least a 60 dB rejection from the carrier.(RF Simulation with RFSIM99) This RF FM ampl [...]
This RF amplifier for FM 88-108 MHz with no tune (broadband) needed to cover all the FM Band. This RF Power amplifier is equiped with the famous Mosfet transistor the BLF245. Depending on the output power level you are able to provide with your FM synthesizer, you can use or not the 2N3866 driver stage included in this amplifier design. Impedance matching network file(PDF) All the impedance networks (Input-Output) of this RF amplifier have been determined by using the softwares: Mimp.E [...]
This rf power amplifier design for a 2.5 Watt power amplifier for the FM band. An input of 50 mW gives a final output power of 2.5 Watts with a 13 Volt supply. The best bit is that the amplifier requires no tuning once it's built - it gives roughly the same gain and output power right across the FM band from 88 to 108 MHz.There's even some hefty output low pass filtering to make sure that harmonic output is small and no interference is caused to users (mostly military!) on multiples of [...]
Here is an 30 watt FM amplifier schematic that provides an appropriate power boost with an input of 4 watt up to 6 watts (2SC1971 Driver Amplifier recomended). The circuit is designed to cover 88-108MHz VHF FM broadcast band. However, the circuit is very stable at my place and provides a clean-output through 7 elements Butterworth low pass filter. The amplifier current can be over 5 amps. All the coils are made from 16 gauge laminated wire (or Silver copper wire can do best) and the RF [...]
This RF Power Amplifier taken from FRB Amplifier Kit. It uses 2SC1971 for FM broadband design from 88 to 108 MHz. Power Amplifier Schematic Circuit Power Amplifier Printed Circuit Board and Component Layout Assemble Instructions RF power amplifier assemble by soldering the components to the pads indicated. Keep coil, resistor, and capacitor leads as short as possible. The coils should be 3/16" to 1/4" above the board and separate turns by one wire diameter. Bend leads to form a little [...]
How to build and improve rf transmitter AM-FM-TV Transmitter