o that ... well thats not easy to do at all with much amps trust me , things can get messy with even 5 volts logic pulsing a 12v transistor . You can probably make the signal @ low power on a breadboard without too much problems ...
Thats why I use all cmos with my pulser , all @ same pressure , much less problems .
What happens is that analog signals like sine wavea and op amps and digital signals dont like to me mixed for some reason , they need seperate ground return paths , and the power circuit needs also his own personal return path . They can all share the same +Power path tho , as long as its big and low impedance . And they need big return paths with low impedance (inductance) .If you tried to amplify that wave @ much amps you could start seeing some digital noise right on your wave . I am an eye witness to that phenomenon .