digital components can be used in combination with a MOSFET as shown in the article Paul Harrison (G4VAM) extracted from the magazine Sprat. Oscillator signal, for which general design can be used N7KSB seen above, feeds a pair of NAND gates. The first one is configured as an investor while the second is used to manipulate next step. The amplifier uses a MOSFET (IRF510 for example) whose output is filtered by a lowpass calculated for the frequency. The RFC value is not critical and should be one that represents a reactance of 500 Ohms or more to the frequency. This amplifier can deliver 1 to 2 W on a load of 50 Ohms.
Subject: ESS.
Student: Pedro Jose Contreras Urbina
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