How did Tesla create such high frequency currents?

  • #1

Main Question or Discussion Point

I've read his book and he talks about AC current frequencies of incredibly high magnitudes. How was this achieved? Surely he did not just spin his dynamo really, really fast.
 

Answers and Replies

  • #2
Drakkith
Staff Emeritus
Science Advisor
20,702
4,384
How high did he go? Does your book say?
 
  • #3
CWatters
Science Advisor
Homework Helper
Gold Member
10,528
2,294
Perhaps..

http://www.mentallandscape.com/Tesla1.htm

His first experiments were with a unique new high frequency alternator [5]. This was made up of a steel disk 30 inches in diameter with 384 poles like the teeth of a cog that had zigzag windings on them. This disk revolved within a fixed ring that had 384 inductor poles. When this machine was turned at 3000 rpm, it produced about 200 volts at 9600 to 10,000 Hz. Tesla was the first man to work with such a device [6]. Later machines of somewhat different design produced up to 30,000 Hz.
It continues with a description of his later work including a spark gap LC transmitter. Basically this is a resonant circuit that is hit with an impulse to make it "ring" at the resonant frequency.
 
Last edited:
  • #4
2,967
5
10 kHz is still in the acoustic domain (for sound). Why is this "such high frequency" according to you? When you say something is very large, or very small, you must tell us what physical quantity of the same kind you are comparing it with.
 

Related Threads for: How did Tesla create such high frequency currents?

Replies
7
Views
707
  • Last Post
Replies
7
Views
3K
Replies
2
Views
2K
  • Last Post
Replies
7
Views
2K
Replies
3
Views
552
Top