Two tuners were developed for this receiver. The more sensitive one uses tetrode transistors in the RF amplifier, mixer and oscillator. Its disadvantages lie in a much higher cost and a 12 to 14 db ...
The Class E power amplifier can be turned into an efficient, tuned-input, tuned-output (TITO) oscillator with the addition of a tuned circuit at its gate. The oscillator/amplifier has a power-added ...