I'm finishing assembling my second F5 Turbo in a hybrid version, a V2 with transistor V3 driving.
the power rail increased to 39V with mosfet stabilized power supply.
During the tests I noticed a self-oscillation on my analog instrument connected to an 8ohm load when injecting a sine wave signal below 120Hz.
The blocking capacitor (C3 C4) for the self-oscillations I have tried various values from 560pF to 1.5nF the self-oscillation remains. Has anyone noticed a similar thing on their F5? Thanks to all who want to participate. Sorry in advance for my english google translate
the power rail increased to 39V with mosfet stabilized power supply.
During the tests I noticed a self-oscillation on my analog instrument connected to an 8ohm load when injecting a sine wave signal below 120Hz.
The blocking capacitor (C3 C4) for the self-oscillations I have tried various values from 560pF to 1.5nF the self-oscillation remains. Has anyone noticed a similar thing on their F5? Thanks to all who want to participate. Sorry in advance for my english google translate
Low frequency oscillations usually are caused by insufficient power supply decoupling, or bad decoupling between power stage and previous voltage amplification.
Could you see the effect with an oscilloscope in the power lines?
Could you see the effect with an oscilloscope in the power lines?
