Doepfer

Hi Bakis,

I use the 
   ‚Sweep Function Generator with Frequency Counter`
from www.conrad.com (a cheap mail-order house!).

The Frequency Counter measures from 2 to 100000 Hz.
For more informations go to the International-Site at Conrad and 
search for the Item-No.:
    123110-92

For tuning-informations (notes, octave range, cent-detuning) I use a 
chromatic tuner (Korg AT-12).

Another possibility is measurement with software: record a tone and 
measure them (for example) with WaveLab. 

By the way: In WaveLab there is an oscilloscope (the scopion-PlugIn). 
A big oscilloscope is in samplitude (www.sekd.de). You can use this 
oscilloscope with the demo-software!

Josef