Im looking to build a frequency generator for my cousin's birthday, and I was looking for some help. Since he does a lot of car stereo installs, it helps to test sub enclosures before using them. The output should be something like this:
- variable 10Hz - 99Hz
- output 0.2v - 2.0v swing (volume, going into preamp inputs on amp)
- displays frequency being generated on 2 7-seg displays
- hopefully doesnt use a microcontroller, but I have 16F84A's and 16F873A's available
Id really appreciate it if someone could point me in the way of come circuit(s) that would do the job. I can throw a bit of cash your way if you have to design one. Thanks!

 

Have you searched these forums? Have you investigated the kits sold by electronics shops?

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Len

 

Having no prior experience in microcontrollers, I dont understand any of the code posted about this topic. Also, I was hoping to build the circuit myself, rather than buy a kit, due to the fact that Im hoping to have this built before tuesday, and no electronic shop that I know of could get me a kit that fast for a reasonable price.

 

You might check http://members.cox.net/berniekm/signal.html which should give you some ideas!.

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