AM RulZ!

PDM Transmitter by WD4NGG

Here is the modulator deck. It uses a single MOSFET to produce audio from 50-10000 Hz at 1 percent distortion. The large air-wound coils are part of the lowpass filter on the output of the modulator (a required component of a PDM amplifier).


Fall 2001

 

Back to the Pix


 

15 October 2001