The title says it all.
My amplifier is about 40W mono amp, sitting on a good breadboard properly grounded (no chassis though). It sounds really good but whenever I remove the input jacks the hum kicks in. With jacks connected, my output voltage is just about 10mV DC. My amp has no volume control.
Where should I start looking at?
My amplifier is about 40W mono amp, sitting on a good breadboard properly grounded (no chassis though). It sounds really good but whenever I remove the input jacks the hum kicks in. With jacks connected, my output voltage is just about 10mV DC. My amp has no volume control.
Where should I start looking at?