Hello Ha-Jo, Ten years ago I have been tinkering with passive audio bandpass filters. In an attemp to reduce the physical size of the inductors, some 9 mm hi-mu cores were used. The Q of the inductor
Ha-Jo and all, That makes sense. There was not much difference between 80 and 155 watts, but I did not try anything lower and the amplifier capable higher power tests is under construction. I will le
Dear all, a former collegue of me had to design an amplifier in the frequency range 10 to 20 kHz delivering a few watts. For the output filter he had used tunable pot cores. He was wondering that he
1) Slight Saturation in the core causing a loss in inductance at high power perhaps? Assuming the air wound and cored inductors were adjusted to exactly the same values initially. Or 2) Direct coupli
