High output alternator

[Triedaq]

Theoretically, if the voltage is doubled, the current is cut in half for the same amount of power. However, on old vacuum tube equipment, the current draw was not a lot less for 12 volt equipment as opposed to 6 volt equipment as I remember. I had a Ham license at one time, but did not have mobile equipment. However, I don’t remember anybody back then having a transceiver that drew anything near 1200 watts. Of course, back in the 1940s and 1950s, nobody dreamed of having audio equipment where the bass notes that draw the power could be heard in the car in the next lane.