Dx amplifier, square wave sweep test.avi

You can see the waveform while i am changing manually the frequency to above the audibility .... the scan of frequency gone to near 20 kilohertz, and in some moments going above as we have not all that control into the fingers turning knobs...you see the waveform... the scope was attenuated by a external voltage divider made using RC and the amplitude selector in in the uncall position, so the 0.2 mark has no value as a reference to calculate amplitude.... around 45 watts, very near the full power into a SPEAKER as a very complicated load..usually people test over non inductive resistances or arrangements using resistance and a capacitor..i am using a real speaker coupled into the output, a 4 ohms speaker.

Category:

Science & Technology

Tags:

• Dx
• amplifier