Thanks for that information alec_t
still other question that puzzle me
what i was trying to say is that
If i was trying to MAKE a circuit on my own
to change the frequency,voltage and current on ac and dc(not frequency for dc) power how would go about doing that?
Like i have a primary power source of 70 hz 15amp 240vac and i want to lower/increase the values of (hz , amp, volt)
for example to power a light bulb that only works with 70hz 5amp 60 vac , with electrical components what can i build with them to lower the values