how do i calculate the frequency of this circuit?

Discussion in 'Homework Help' started by chris121, Jun 20, 2005.

  1. chris121

    Thread Starter New Member

    May 4, 2005
    Someone please take a look at this circuit, I really really really need to know how these particular frequencies stated under the diagram were calculated through the circuit, please help?!?!? how did he come up with a 1Hz cycle rate, and where did he get the right timer's frequency to alternate between 440Hz and 550Hz, how did he calculate 440Hz and 550Hz?
  2. hgmjr

    Retired Moderator

    Jan 28, 2005
    See comments in duplicate post......