Recent content by prodna

I too agree that the frequency(60Hz) may come from powerline, but am not very much sure. Circuit is shielded. The oscillations decay is constant. Yes the raise time is 200ms. Removal of capacitor causes high frequency noise with spikes.

ye it sounds like ringing with some frequency

Hi here are the answers to the questions, hoping to see reply. 1. Amplifier: Commercial 2. Bandwidth: -3 dB 3. Input impedance: 10 KΩ and DC coupled 4. Time: the time to reach plateau is 200ms 5. 1K resistor is associated with circuit and with load, the load connected to the output socket...

Dear All, We have an voltage amplifier. The input is given in small square wave steps to check rise time and noise level of an output signal. The rise time looks good, but we see periodic (noise)oscillations after reaching the plateau. We measure signal voltage across capacitor (10 micro...