how could I design a circuit having an output of electromagnetic delta wave with LM555, and tunable frequency?

[AnalogKid2DigitalMan]

By reading the application notes and specifications for the LM555. There are lots of examples and schematics contained within. Not sure what you mean by an 'electromagnetic delta wave'.

Does this have anything to do with LabVIEW or other National Instruments products?

[hoffiz]

Hi humprey,

I don’t think you are posting you question in the right Discussion Forum. This counter and timer forum is for National Instruments counters and timers’ engine and/or boards. LM 555 is a generic timer that is not supported by National Instruments.  What I’m curious to know is, what is an Electromagnetic Delta Wave? If you can describe it a little bit more, since I was not able to find any resources on the web.

Sorry I was not more helpful

Message Edited by Jaime F on 12-20-2007 10:08 AM

[AnalogKid2DigitalMan]

humprey:

Sorry, I forgot the link I had in mind from National SEMICONDUCTOR:

http://www.national.com/mpf/LM/LM555.html