The project presented in a 2009 documentation is intended for radio amateurs operating in the 40-meter range (7.5 MHz). It is an amplifier that provides an output power of 50 W from an input of 5 to 10 W. All resistors are 2 W, ceramic capacitors and connectors of the type used in VHF. The MRF455 transistor must be mounted on an excellent heat sink. The 1N4502 diode is 2 A and the coils have the following characteristics:
L1 - 36 turns without wire core 16 in the form of 1 cm in diameter.
L2 - 33 turns of wire 28 and with core and 10 mm in diameter and 3 cm in length.
L3 - 11 turns of wire 18 in the form of 8 mm in diameter and length of 25 mm, without core.
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