On Fri, 24 Apr 1998 11:11:34 -0500 Frank Mckenney writes: >The "down side" is the it will only cover the last part of your >desired >range, since it is limited to [391KHz - 100MHz]. If you can generate the last range, the other ranges can be obtained easily by dividing the frequency by 10, 100, or 1000. The step size will also reduce proportionally. Decade counter IC's such as the 74HC393 are suitable for dividing a frequency by 10. I think there was once a 4000-series chip that had 3 decade counters in one package, but I don't remember the number. _____________________________________________________________________ You don't need to buy Internet access to use free Internet e-mail. Get completely free e-mail from Juno at http://www.juno.com Or call Juno at (800) 654-JUNO [654-5866]