I want to amplify a 20MHZ signal using a 2N3904 any circuit ideas?
i have tryed this http://www.summitsoftconsulting.com/picts/OCCircuit.JPG
but it doesn't work the microntroller output signal is from 0 to 5V
and when I connected to the base of the 2n3904 the collector of the transistor it switch from 1.8V to 2.5V signal
i have tryed this http://www.summitsoftconsulting.com/picts/OCCircuit.JPG
but it doesn't work the microntroller output signal is from 0 to 5V
and when I connected to the base of the 2n3904 the collector of the transistor it switch from 1.8V to 2.5V signal
Last edited: