Something like this circuit, I labelled one of any Capacitors except 470uF to display amps and label a wire close to labelled 47uF capacitor to display volts.
Of course, in real life, we can't do something, which is Voltage Source to be adjusting to very high...
I set it to 9V and you can see how does frequency display shows. Adjust it to any numbers you like and yes, you can try 100kV.
Change simulation speed to speed up if you like.
