you are viewing a single comment's thread
view the rest of the comments
[–] 20 points 1 year ago* (2 children)

Meh, you could do signal amplification via transformers and tuned resonators.

It sucked, but it was possible.

That's how we had telephones before we had tubes.

  • source
  • parent
  • hideshow 2 child comments
  • [–] 1 point 1 year ago (1 child)

    Transformers can increase voltage while decreasing current, or increase current while decreasing voltage, but can't increase a signal's power.

  • source
  • parent
  • hideshow 1 child comment