If you want to dabble in audio digital signal processing, you would probably think of grabbing a dedicated DSP chip....
signal generator
bought a cheap arbitrary waveform generator and noted that it only had a two-pin power cord. That has its ups...
CRTs don’t last forever, and neither do the electronics that drive them. When you have a screen starting to go...
correctly intuits that if you are interested in an old Heathkit signal generator, you probably already know how to solder....